]>
Commit | Line | Data |
---|---|---|
7c1a000d | 1 | // SPDX-License-Identifier: GPL-2.0 |
0a8165d7 | 2 | /* |
aff063e2 JK |
3 | * fs/f2fs/super.c |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
6 | * http://www.samsung.com/ | |
aff063e2 JK |
7 | */ |
8 | #include <linux/module.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/fs.h> | |
11 | #include <linux/statfs.h> | |
aff063e2 JK |
12 | #include <linux/buffer_head.h> |
13 | #include <linux/backing-dev.h> | |
14 | #include <linux/kthread.h> | |
15 | #include <linux/parser.h> | |
16 | #include <linux/mount.h> | |
17 | #include <linux/seq_file.h> | |
5e176d54 | 18 | #include <linux/proc_fs.h> |
aff063e2 JK |
19 | #include <linux/random.h> |
20 | #include <linux/exportfs.h> | |
d3ee456d | 21 | #include <linux/blkdev.h> |
0abd675e | 22 | #include <linux/quotaops.h> |
aff063e2 | 23 | #include <linux/f2fs_fs.h> |
b59d0bae | 24 | #include <linux/sysfs.h> |
4b2414d0 | 25 | #include <linux/quota.h> |
aff063e2 JK |
26 | |
27 | #include "f2fs.h" | |
28 | #include "node.h" | |
5ec4e49f | 29 | #include "segment.h" |
aff063e2 | 30 | #include "xattr.h" |
b59d0bae | 31 | #include "gc.h" |
db9f7c1a | 32 | #include "trace.h" |
aff063e2 | 33 | |
a2a4a7e4 NJ |
34 | #define CREATE_TRACE_POINTS |
35 | #include <trace/events/f2fs.h> | |
36 | ||
aff063e2 JK |
37 | static struct kmem_cache *f2fs_inode_cachep; |
38 | ||
73faec4d | 39 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead | 40 | |
19880e6e | 41 | const char *f2fs_fault_name[FAULT_MAX] = { |
2c63fead | 42 | [FAULT_KMALLOC] = "kmalloc", |
628b3d14 | 43 | [FAULT_KVMALLOC] = "kvmalloc", |
c41f3cc3 | 44 | [FAULT_PAGE_ALLOC] = "page alloc", |
01eccef7 | 45 | [FAULT_PAGE_GET] = "page get", |
d62fe971 | 46 | [FAULT_ALLOC_BIO] = "alloc bio", |
cb78942b JK |
47 | [FAULT_ALLOC_NID] = "alloc nid", |
48 | [FAULT_ORPHAN] = "orphan", | |
49 | [FAULT_BLOCK] = "no more block", | |
50 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 51 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 52 | [FAULT_TRUNCATE] = "truncate fail", |
6f5c2ed0 | 53 | [FAULT_READ_IO] = "read IO error", |
0f348028 | 54 | [FAULT_CHECKPOINT] = "checkpoint error", |
b83dcfe6 | 55 | [FAULT_DISCARD] = "discard error", |
6f5c2ed0 | 56 | [FAULT_WRITE_IO] = "write IO error", |
2c63fead | 57 | }; |
08796897 | 58 | |
d494500a CY |
59 | void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, |
60 | unsigned int type) | |
08796897 | 61 | { |
63189b78 | 62 | struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; |
1ecc0c5c | 63 | |
08796897 | 64 | if (rate) { |
1ecc0c5c CY |
65 | atomic_set(&ffi->inject_ops, 0); |
66 | ffi->inject_rate = rate; | |
08796897 | 67 | } |
d494500a CY |
68 | |
69 | if (type) | |
70 | ffi->inject_type = type; | |
71 | ||
72 | if (!rate && !type) | |
73 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); | |
08796897 | 74 | } |
73faec4d JK |
75 | #endif |
76 | ||
2658e50d JK |
77 | /* f2fs-wide shrinker description */ |
78 | static struct shrinker f2fs_shrinker_info = { | |
79 | .scan_objects = f2fs_shrink_scan, | |
80 | .count_objects = f2fs_shrink_count, | |
81 | .seeks = DEFAULT_SEEKS, | |
82 | }; | |
83 | ||
aff063e2 | 84 | enum { |
696c018c | 85 | Opt_gc_background, |
aff063e2 | 86 | Opt_disable_roll_forward, |
2d834bf9 | 87 | Opt_norecovery, |
aff063e2 | 88 | Opt_discard, |
64058be9 | 89 | Opt_nodiscard, |
aff063e2 | 90 | Opt_noheap, |
7a20b8a6 | 91 | Opt_heap, |
4058c511 | 92 | Opt_user_xattr, |
aff063e2 | 93 | Opt_nouser_xattr, |
4058c511 | 94 | Opt_acl, |
aff063e2 JK |
95 | Opt_noacl, |
96 | Opt_active_logs, | |
97 | Opt_disable_ext_identify, | |
444c580f | 98 | Opt_inline_xattr, |
23cf7212 | 99 | Opt_noinline_xattr, |
6afc662e | 100 | Opt_inline_xattr_size, |
8274de77 | 101 | Opt_inline_data, |
5efd3c6f | 102 | Opt_inline_dentry, |
97c1794a | 103 | Opt_noinline_dentry, |
6b4afdd7 | 104 | Opt_flush_merge, |
69e9e427 | 105 | Opt_noflush_merge, |
0f7b2abd | 106 | Opt_nobarrier, |
d5053a34 | 107 | Opt_fastboot, |
89672159 | 108 | Opt_extent_cache, |
7daaea25 | 109 | Opt_noextent_cache, |
75342797 | 110 | Opt_noinline_data, |
343f40f0 | 111 | Opt_data_flush, |
7e65be49 | 112 | Opt_reserve_root, |
7c2e5963 JK |
113 | Opt_resgid, |
114 | Opt_resuid, | |
36abef4e | 115 | Opt_mode, |
ec91538d | 116 | Opt_io_size_bits, |
73faec4d | 117 | Opt_fault_injection, |
d494500a | 118 | Opt_fault_type, |
6d94c74a JK |
119 | Opt_lazytime, |
120 | Opt_nolazytime, | |
4b2414d0 CY |
121 | Opt_quota, |
122 | Opt_noquota, | |
0abd675e CY |
123 | Opt_usrquota, |
124 | Opt_grpquota, | |
5c57132e | 125 | Opt_prjquota, |
4b2414d0 CY |
126 | Opt_usrjquota, |
127 | Opt_grpjquota, | |
128 | Opt_prjjquota, | |
129 | Opt_offusrjquota, | |
130 | Opt_offgrpjquota, | |
131 | Opt_offprjjquota, | |
132 | Opt_jqfmt_vfsold, | |
133 | Opt_jqfmt_vfsv0, | |
134 | Opt_jqfmt_vfsv1, | |
0cdd3195 | 135 | Opt_whint, |
07939627 | 136 | Opt_alloc, |
93cf93f1 | 137 | Opt_fsync, |
ff62af20 | 138 | Opt_test_dummy_encryption, |
4354994f | 139 | Opt_checkpoint, |
aff063e2 JK |
140 | Opt_err, |
141 | }; | |
142 | ||
143 | static match_table_t f2fs_tokens = { | |
696c018c | 144 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 145 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 146 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 147 | {Opt_discard, "discard"}, |
64058be9 | 148 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 149 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 150 | {Opt_heap, "heap"}, |
4058c511 | 151 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 152 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 153 | {Opt_acl, "acl"}, |
aff063e2 JK |
154 | {Opt_noacl, "noacl"}, |
155 | {Opt_active_logs, "active_logs=%u"}, | |
156 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 157 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 158 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 159 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 160 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 161 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 162 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 163 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 164 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 165 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 166 | {Opt_fastboot, "fastboot"}, |
89672159 | 167 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 168 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 169 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 170 | {Opt_data_flush, "data_flush"}, |
7e65be49 | 171 | {Opt_reserve_root, "reserve_root=%u"}, |
7c2e5963 JK |
172 | {Opt_resgid, "resgid=%u"}, |
173 | {Opt_resuid, "resuid=%u"}, | |
36abef4e | 174 | {Opt_mode, "mode=%s"}, |
ec91538d | 175 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 176 | {Opt_fault_injection, "fault_injection=%u"}, |
d494500a | 177 | {Opt_fault_type, "fault_type=%u"}, |
6d94c74a JK |
178 | {Opt_lazytime, "lazytime"}, |
179 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
180 | {Opt_quota, "quota"}, |
181 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
182 | {Opt_usrquota, "usrquota"}, |
183 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 184 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
185 | {Opt_usrjquota, "usrjquota=%s"}, |
186 | {Opt_grpjquota, "grpjquota=%s"}, | |
187 | {Opt_prjjquota, "prjjquota=%s"}, | |
188 | {Opt_offusrjquota, "usrjquota="}, | |
189 | {Opt_offgrpjquota, "grpjquota="}, | |
190 | {Opt_offprjjquota, "prjjquota="}, | |
191 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
192 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
193 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
0cdd3195 | 194 | {Opt_whint, "whint_mode=%s"}, |
07939627 | 195 | {Opt_alloc, "alloc_mode=%s"}, |
93cf93f1 | 196 | {Opt_fsync, "fsync_mode=%s"}, |
ff62af20 | 197 | {Opt_test_dummy_encryption, "test_dummy_encryption"}, |
4354994f | 198 | {Opt_checkpoint, "checkpoint=%s"}, |
aff063e2 JK |
199 | {Opt_err, NULL}, |
200 | }; | |
201 | ||
a07ef784 NJ |
202 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
203 | { | |
204 | struct va_format vaf; | |
205 | va_list args; | |
206 | ||
207 | va_start(args, fmt); | |
208 | vaf.fmt = fmt; | |
209 | vaf.va = &args; | |
22d7ea13 | 210 | printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
211 | va_end(args); |
212 | } | |
213 | ||
7e65be49 JK |
214 | static inline void limit_reserve_root(struct f2fs_sb_info *sbi) |
215 | { | |
216 | block_t limit = (sbi->user_block_count << 1) / 1000; | |
217 | ||
218 | /* limit is 0.2% */ | |
63189b78 CY |
219 | if (test_opt(sbi, RESERVE_ROOT) && |
220 | F2FS_OPTION(sbi).root_reserved_blocks > limit) { | |
221 | F2FS_OPTION(sbi).root_reserved_blocks = limit; | |
7e65be49 JK |
222 | f2fs_msg(sbi->sb, KERN_INFO, |
223 | "Reduce reserved blocks for root = %u", | |
63189b78 | 224 | F2FS_OPTION(sbi).root_reserved_blocks); |
7e65be49 | 225 | } |
7c2e5963 | 226 | if (!test_opt(sbi, RESERVE_ROOT) && |
63189b78 | 227 | (!uid_eq(F2FS_OPTION(sbi).s_resuid, |
7c2e5963 | 228 | make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || |
63189b78 | 229 | !gid_eq(F2FS_OPTION(sbi).s_resgid, |
7c2e5963 JK |
230 | make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) |
231 | f2fs_msg(sbi->sb, KERN_INFO, | |
232 | "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root", | |
63189b78 CY |
233 | from_kuid_munged(&init_user_ns, |
234 | F2FS_OPTION(sbi).s_resuid), | |
235 | from_kgid_munged(&init_user_ns, | |
236 | F2FS_OPTION(sbi).s_resgid)); | |
7e65be49 JK |
237 | } |
238 | ||
aff063e2 JK |
239 | static void init_once(void *foo) |
240 | { | |
241 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
242 | ||
aff063e2 JK |
243 | inode_init_once(&fi->vfs_inode); |
244 | } | |
245 | ||
4b2414d0 CY |
246 | #ifdef CONFIG_QUOTA |
247 | static const char * const quotatypes[] = INITQFNAMES; | |
248 | #define QTYPE2NAME(t) (quotatypes[t]) | |
249 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
250 | substring_t *args) | |
251 | { | |
252 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
253 | char *qname; | |
254 | int ret = -EINVAL; | |
255 | ||
63189b78 | 256 | if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) { |
4b2414d0 CY |
257 | f2fs_msg(sb, KERN_ERR, |
258 | "Cannot change journaled " | |
259 | "quota options when quota turned on"); | |
260 | return -EINVAL; | |
261 | } | |
7beb01f7 | 262 | if (f2fs_sb_has_quota_ino(sbi)) { |
ea676733 JK |
263 | f2fs_msg(sb, KERN_INFO, |
264 | "QUOTA feature is enabled, so ignore qf_name"); | |
265 | return 0; | |
266 | } | |
267 | ||
4b2414d0 CY |
268 | qname = match_strdup(args); |
269 | if (!qname) { | |
270 | f2fs_msg(sb, KERN_ERR, | |
271 | "Not enough memory for storing quotafile name"); | |
f365c6cc | 272 | return -ENOMEM; |
4b2414d0 | 273 | } |
63189b78 CY |
274 | if (F2FS_OPTION(sbi).s_qf_names[qtype]) { |
275 | if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0) | |
4b2414d0 CY |
276 | ret = 0; |
277 | else | |
278 | f2fs_msg(sb, KERN_ERR, | |
279 | "%s quota file already specified", | |
280 | QTYPE2NAME(qtype)); | |
281 | goto errout; | |
282 | } | |
283 | if (strchr(qname, '/')) { | |
284 | f2fs_msg(sb, KERN_ERR, | |
285 | "quotafile must be on filesystem root"); | |
286 | goto errout; | |
287 | } | |
63189b78 | 288 | F2FS_OPTION(sbi).s_qf_names[qtype] = qname; |
4b2414d0 CY |
289 | set_opt(sbi, QUOTA); |
290 | return 0; | |
291 | errout: | |
5222595d | 292 | kvfree(qname); |
4b2414d0 CY |
293 | return ret; |
294 | } | |
295 | ||
296 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
297 | { | |
298 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
299 | ||
63189b78 | 300 | if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) { |
4b2414d0 CY |
301 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" |
302 | " when quota turned on"); | |
303 | return -EINVAL; | |
304 | } | |
5222595d | 305 | kvfree(F2FS_OPTION(sbi).s_qf_names[qtype]); |
63189b78 | 306 | F2FS_OPTION(sbi).s_qf_names[qtype] = NULL; |
4b2414d0 CY |
307 | return 0; |
308 | } | |
309 | ||
310 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
311 | { | |
312 | /* | |
313 | * We do the test below only for project quotas. 'usrquota' and | |
314 | * 'grpquota' mount options are allowed even without quota feature | |
315 | * to support legacy quotas in quota files. | |
316 | */ | |
7beb01f7 | 317 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) { |
4b2414d0 CY |
318 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " |
319 | "Cannot enable project quota enforcement."); | |
320 | return -1; | |
321 | } | |
63189b78 CY |
322 | if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || |
323 | F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || | |
324 | F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) { | |
325 | if (test_opt(sbi, USRQUOTA) && | |
326 | F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) | |
4b2414d0 CY |
327 | clear_opt(sbi, USRQUOTA); |
328 | ||
63189b78 CY |
329 | if (test_opt(sbi, GRPQUOTA) && |
330 | F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) | |
4b2414d0 CY |
331 | clear_opt(sbi, GRPQUOTA); |
332 | ||
63189b78 CY |
333 | if (test_opt(sbi, PRJQUOTA) && |
334 | F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) | |
4b2414d0 CY |
335 | clear_opt(sbi, PRJQUOTA); |
336 | ||
337 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
338 | test_opt(sbi, PRJQUOTA)) { | |
339 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
340 | "format mixing"); | |
341 | return -1; | |
342 | } | |
343 | ||
63189b78 | 344 | if (!F2FS_OPTION(sbi).s_jquota_fmt) { |
4b2414d0 CY |
345 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " |
346 | "not specified"); | |
347 | return -1; | |
348 | } | |
349 | } | |
ea676733 | 350 | |
7beb01f7 | 351 | if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) { |
ea676733 JK |
352 | f2fs_msg(sbi->sb, KERN_INFO, |
353 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
63189b78 | 354 | F2FS_OPTION(sbi).s_jquota_fmt = 0; |
ea676733 | 355 | } |
4b2414d0 CY |
356 | return 0; |
357 | } | |
358 | #endif | |
359 | ||
696c018c NJ |
360 | static int parse_options(struct super_block *sb, char *options) |
361 | { | |
362 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
363 | substring_t args[MAX_OPT_ARGS]; | |
364 | char *p, *name; | |
365 | int arg = 0; | |
7c2e5963 JK |
366 | kuid_t uid; |
367 | kgid_t gid; | |
4b2414d0 CY |
368 | #ifdef CONFIG_QUOTA |
369 | int ret; | |
370 | #endif | |
696c018c NJ |
371 | |
372 | if (!options) | |
373 | return 0; | |
374 | ||
375 | while ((p = strsep(&options, ",")) != NULL) { | |
376 | int token; | |
377 | if (!*p) | |
378 | continue; | |
379 | /* | |
380 | * Initialize args struct so we know whether arg was | |
381 | * found; some options take optional arguments. | |
382 | */ | |
383 | args[0].to = args[0].from = NULL; | |
384 | token = match_token(p, f2fs_tokens, args); | |
385 | ||
386 | switch (token) { | |
387 | case Opt_gc_background: | |
388 | name = match_strdup(&args[0]); | |
389 | ||
390 | if (!name) | |
391 | return -ENOMEM; | |
6aefd93b | 392 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 393 | set_opt(sbi, BG_GC); |
6aefd93b JK |
394 | clear_opt(sbi, FORCE_FG_GC); |
395 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 396 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
397 | clear_opt(sbi, FORCE_FG_GC); |
398 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
399 | set_opt(sbi, BG_GC); | |
400 | set_opt(sbi, FORCE_FG_GC); | |
401 | } else { | |
5222595d | 402 | kvfree(name); |
696c018c NJ |
403 | return -EINVAL; |
404 | } | |
5222595d | 405 | kvfree(name); |
696c018c NJ |
406 | break; |
407 | case Opt_disable_roll_forward: | |
408 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
409 | break; | |
2d834bf9 JK |
410 | case Opt_norecovery: |
411 | /* this option mounts f2fs with ro */ | |
412 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
413 | if (!f2fs_readonly(sb)) | |
414 | return -EINVAL; | |
415 | break; | |
696c018c | 416 | case Opt_discard: |
7d20c8ab | 417 | set_opt(sbi, DISCARD); |
696c018c | 418 | break; |
64058be9 | 419 | case Opt_nodiscard: |
7beb01f7 | 420 | if (f2fs_sb_has_blkzoned(sbi)) { |
96ba2dec DLM |
421 | f2fs_msg(sb, KERN_WARNING, |
422 | "discard is required for zoned block devices"); | |
423 | return -EINVAL; | |
424 | } | |
64058be9 | 425 | clear_opt(sbi, DISCARD); |
487df616 | 426 | break; |
696c018c NJ |
427 | case Opt_noheap: |
428 | set_opt(sbi, NOHEAP); | |
429 | break; | |
7a20b8a6 JK |
430 | case Opt_heap: |
431 | clear_opt(sbi, NOHEAP); | |
432 | break; | |
696c018c | 433 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
434 | case Opt_user_xattr: |
435 | set_opt(sbi, XATTR_USER); | |
436 | break; | |
696c018c NJ |
437 | case Opt_nouser_xattr: |
438 | clear_opt(sbi, XATTR_USER); | |
439 | break; | |
444c580f JK |
440 | case Opt_inline_xattr: |
441 | set_opt(sbi, INLINE_XATTR); | |
442 | break; | |
23cf7212 CY |
443 | case Opt_noinline_xattr: |
444 | clear_opt(sbi, INLINE_XATTR); | |
445 | break; | |
6afc662e CY |
446 | case Opt_inline_xattr_size: |
447 | if (args->from && match_int(args, &arg)) | |
448 | return -EINVAL; | |
449 | set_opt(sbi, INLINE_XATTR_SIZE); | |
63189b78 | 450 | F2FS_OPTION(sbi).inline_xattr_size = arg; |
6afc662e | 451 | break; |
696c018c | 452 | #else |
4058c511 KA |
453 | case Opt_user_xattr: |
454 | f2fs_msg(sb, KERN_INFO, | |
455 | "user_xattr options not supported"); | |
456 | break; | |
696c018c NJ |
457 | case Opt_nouser_xattr: |
458 | f2fs_msg(sb, KERN_INFO, | |
459 | "nouser_xattr options not supported"); | |
460 | break; | |
444c580f JK |
461 | case Opt_inline_xattr: |
462 | f2fs_msg(sb, KERN_INFO, | |
463 | "inline_xattr options not supported"); | |
464 | break; | |
23cf7212 CY |
465 | case Opt_noinline_xattr: |
466 | f2fs_msg(sb, KERN_INFO, | |
467 | "noinline_xattr options not supported"); | |
468 | break; | |
696c018c NJ |
469 | #endif |
470 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
471 | case Opt_acl: |
472 | set_opt(sbi, POSIX_ACL); | |
473 | break; | |
696c018c NJ |
474 | case Opt_noacl: |
475 | clear_opt(sbi, POSIX_ACL); | |
476 | break; | |
477 | #else | |
4058c511 KA |
478 | case Opt_acl: |
479 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
480 | break; | |
696c018c NJ |
481 | case Opt_noacl: |
482 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
483 | break; | |
484 | #endif | |
485 | case Opt_active_logs: | |
486 | if (args->from && match_int(args, &arg)) | |
487 | return -EINVAL; | |
488 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
489 | return -EINVAL; | |
63189b78 | 490 | F2FS_OPTION(sbi).active_logs = arg; |
696c018c NJ |
491 | break; |
492 | case Opt_disable_ext_identify: | |
493 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
494 | break; | |
8274de77 HL |
495 | case Opt_inline_data: |
496 | set_opt(sbi, INLINE_DATA); | |
497 | break; | |
5efd3c6f CY |
498 | case Opt_inline_dentry: |
499 | set_opt(sbi, INLINE_DENTRY); | |
500 | break; | |
97c1794a CY |
501 | case Opt_noinline_dentry: |
502 | clear_opt(sbi, INLINE_DENTRY); | |
503 | break; | |
6b4afdd7 JK |
504 | case Opt_flush_merge: |
505 | set_opt(sbi, FLUSH_MERGE); | |
506 | break; | |
69e9e427 JK |
507 | case Opt_noflush_merge: |
508 | clear_opt(sbi, FLUSH_MERGE); | |
509 | break; | |
0f7b2abd JK |
510 | case Opt_nobarrier: |
511 | set_opt(sbi, NOBARRIER); | |
512 | break; | |
d5053a34 JK |
513 | case Opt_fastboot: |
514 | set_opt(sbi, FASTBOOT); | |
515 | break; | |
89672159 CY |
516 | case Opt_extent_cache: |
517 | set_opt(sbi, EXTENT_CACHE); | |
518 | break; | |
7daaea25 JK |
519 | case Opt_noextent_cache: |
520 | clear_opt(sbi, EXTENT_CACHE); | |
521 | break; | |
75342797 WL |
522 | case Opt_noinline_data: |
523 | clear_opt(sbi, INLINE_DATA); | |
524 | break; | |
343f40f0 CY |
525 | case Opt_data_flush: |
526 | set_opt(sbi, DATA_FLUSH); | |
527 | break; | |
7e65be49 JK |
528 | case Opt_reserve_root: |
529 | if (args->from && match_int(args, &arg)) | |
530 | return -EINVAL; | |
531 | if (test_opt(sbi, RESERVE_ROOT)) { | |
532 | f2fs_msg(sb, KERN_INFO, | |
533 | "Preserve previous reserve_root=%u", | |
63189b78 | 534 | F2FS_OPTION(sbi).root_reserved_blocks); |
7e65be49 | 535 | } else { |
63189b78 | 536 | F2FS_OPTION(sbi).root_reserved_blocks = arg; |
7e65be49 JK |
537 | set_opt(sbi, RESERVE_ROOT); |
538 | } | |
539 | break; | |
7c2e5963 JK |
540 | case Opt_resuid: |
541 | if (args->from && match_int(args, &arg)) | |
542 | return -EINVAL; | |
543 | uid = make_kuid(current_user_ns(), arg); | |
544 | if (!uid_valid(uid)) { | |
545 | f2fs_msg(sb, KERN_ERR, | |
546 | "Invalid uid value %d", arg); | |
547 | return -EINVAL; | |
548 | } | |
63189b78 | 549 | F2FS_OPTION(sbi).s_resuid = uid; |
7c2e5963 JK |
550 | break; |
551 | case Opt_resgid: | |
552 | if (args->from && match_int(args, &arg)) | |
553 | return -EINVAL; | |
554 | gid = make_kgid(current_user_ns(), arg); | |
555 | if (!gid_valid(gid)) { | |
556 | f2fs_msg(sb, KERN_ERR, | |
557 | "Invalid gid value %d", arg); | |
558 | return -EINVAL; | |
559 | } | |
63189b78 | 560 | F2FS_OPTION(sbi).s_resgid = gid; |
7c2e5963 | 561 | break; |
36abef4e JK |
562 | case Opt_mode: |
563 | name = match_strdup(&args[0]); | |
564 | ||
565 | if (!name) | |
566 | return -ENOMEM; | |
567 | if (strlen(name) == 8 && | |
568 | !strncmp(name, "adaptive", 8)) { | |
7beb01f7 | 569 | if (f2fs_sb_has_blkzoned(sbi)) { |
3adc57e9 DLM |
570 | f2fs_msg(sb, KERN_WARNING, |
571 | "adaptive mode is not allowed with " | |
572 | "zoned block device feature"); | |
5222595d | 573 | kvfree(name); |
3adc57e9 DLM |
574 | return -EINVAL; |
575 | } | |
52763a4b | 576 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
577 | } else if (strlen(name) == 3 && |
578 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 579 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e | 580 | } else { |
5222595d | 581 | kvfree(name); |
36abef4e JK |
582 | return -EINVAL; |
583 | } | |
5222595d | 584 | kvfree(name); |
36abef4e | 585 | break; |
ec91538d JK |
586 | case Opt_io_size_bits: |
587 | if (args->from && match_int(args, &arg)) | |
588 | return -EINVAL; | |
589 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
590 | f2fs_msg(sb, KERN_WARNING, | |
591 | "Not support %d, larger than %d", | |
592 | 1 << arg, BIO_MAX_PAGES); | |
593 | return -EINVAL; | |
594 | } | |
63189b78 | 595 | F2FS_OPTION(sbi).write_io_size_bits = arg; |
ec91538d | 596 | break; |
4cb037ec | 597 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
73faec4d JK |
598 | case Opt_fault_injection: |
599 | if (args->from && match_int(args, &arg)) | |
600 | return -EINVAL; | |
d494500a CY |
601 | f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE); |
602 | set_opt(sbi, FAULT_INJECTION); | |
d494500a | 603 | break; |
4cb037ec | 604 | |
d494500a CY |
605 | case Opt_fault_type: |
606 | if (args->from && match_int(args, &arg)) | |
607 | return -EINVAL; | |
d494500a | 608 | f2fs_build_fault_attr(sbi, 0, arg); |
0cc0dec2 | 609 | set_opt(sbi, FAULT_INJECTION); |
4cb037ec | 610 | break; |
73faec4d | 611 | #else |
4cb037ec | 612 | case Opt_fault_injection: |
73faec4d | 613 | f2fs_msg(sb, KERN_INFO, |
4cb037ec | 614 | "fault_injection options not supported"); |
73faec4d | 615 | break; |
4cb037ec CX |
616 | |
617 | case Opt_fault_type: | |
618 | f2fs_msg(sb, KERN_INFO, | |
619 | "fault_type options not supported"); | |
620 | break; | |
621 | #endif | |
6d94c74a | 622 | case Opt_lazytime: |
1751e8a6 | 623 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
624 | break; |
625 | case Opt_nolazytime: | |
1751e8a6 | 626 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 627 | break; |
0abd675e | 628 | #ifdef CONFIG_QUOTA |
4b2414d0 | 629 | case Opt_quota: |
0abd675e CY |
630 | case Opt_usrquota: |
631 | set_opt(sbi, USRQUOTA); | |
632 | break; | |
633 | case Opt_grpquota: | |
634 | set_opt(sbi, GRPQUOTA); | |
635 | break; | |
5c57132e CY |
636 | case Opt_prjquota: |
637 | set_opt(sbi, PRJQUOTA); | |
638 | break; | |
4b2414d0 CY |
639 | case Opt_usrjquota: |
640 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
641 | if (ret) | |
642 | return ret; | |
643 | break; | |
644 | case Opt_grpjquota: | |
645 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
646 | if (ret) | |
647 | return ret; | |
648 | break; | |
649 | case Opt_prjjquota: | |
650 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
651 | if (ret) | |
652 | return ret; | |
653 | break; | |
654 | case Opt_offusrjquota: | |
655 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
656 | if (ret) | |
657 | return ret; | |
658 | break; | |
659 | case Opt_offgrpjquota: | |
660 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
661 | if (ret) | |
662 | return ret; | |
663 | break; | |
664 | case Opt_offprjjquota: | |
665 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
666 | if (ret) | |
667 | return ret; | |
668 | break; | |
669 | case Opt_jqfmt_vfsold: | |
63189b78 | 670 | F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD; |
4b2414d0 CY |
671 | break; |
672 | case Opt_jqfmt_vfsv0: | |
63189b78 | 673 | F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0; |
4b2414d0 CY |
674 | break; |
675 | case Opt_jqfmt_vfsv1: | |
63189b78 | 676 | F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1; |
4b2414d0 CY |
677 | break; |
678 | case Opt_noquota: | |
679 | clear_opt(sbi, QUOTA); | |
680 | clear_opt(sbi, USRQUOTA); | |
681 | clear_opt(sbi, GRPQUOTA); | |
682 | clear_opt(sbi, PRJQUOTA); | |
683 | break; | |
0abd675e | 684 | #else |
4b2414d0 | 685 | case Opt_quota: |
0abd675e CY |
686 | case Opt_usrquota: |
687 | case Opt_grpquota: | |
5c57132e | 688 | case Opt_prjquota: |
4b2414d0 CY |
689 | case Opt_usrjquota: |
690 | case Opt_grpjquota: | |
691 | case Opt_prjjquota: | |
692 | case Opt_offusrjquota: | |
693 | case Opt_offgrpjquota: | |
694 | case Opt_offprjjquota: | |
695 | case Opt_jqfmt_vfsold: | |
696 | case Opt_jqfmt_vfsv0: | |
697 | case Opt_jqfmt_vfsv1: | |
698 | case Opt_noquota: | |
0abd675e CY |
699 | f2fs_msg(sb, KERN_INFO, |
700 | "quota operations not supported"); | |
701 | break; | |
702 | #endif | |
0cdd3195 HL |
703 | case Opt_whint: |
704 | name = match_strdup(&args[0]); | |
705 | if (!name) | |
706 | return -ENOMEM; | |
707 | if (strlen(name) == 10 && | |
708 | !strncmp(name, "user-based", 10)) { | |
63189b78 | 709 | F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER; |
0cdd3195 HL |
710 | } else if (strlen(name) == 3 && |
711 | !strncmp(name, "off", 3)) { | |
63189b78 | 712 | F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; |
f2e703f9 HL |
713 | } else if (strlen(name) == 8 && |
714 | !strncmp(name, "fs-based", 8)) { | |
63189b78 | 715 | F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS; |
0cdd3195 | 716 | } else { |
5222595d | 717 | kvfree(name); |
0cdd3195 HL |
718 | return -EINVAL; |
719 | } | |
5222595d | 720 | kvfree(name); |
0cdd3195 | 721 | break; |
07939627 JK |
722 | case Opt_alloc: |
723 | name = match_strdup(&args[0]); | |
724 | if (!name) | |
725 | return -ENOMEM; | |
726 | ||
727 | if (strlen(name) == 7 && | |
728 | !strncmp(name, "default", 7)) { | |
63189b78 | 729 | F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; |
07939627 JK |
730 | } else if (strlen(name) == 5 && |
731 | !strncmp(name, "reuse", 5)) { | |
63189b78 | 732 | F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; |
07939627 | 733 | } else { |
5222595d | 734 | kvfree(name); |
07939627 JK |
735 | return -EINVAL; |
736 | } | |
5222595d | 737 | kvfree(name); |
07939627 | 738 | break; |
93cf93f1 JZ |
739 | case Opt_fsync: |
740 | name = match_strdup(&args[0]); | |
741 | if (!name) | |
742 | return -ENOMEM; | |
743 | if (strlen(name) == 5 && | |
744 | !strncmp(name, "posix", 5)) { | |
63189b78 | 745 | F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; |
93cf93f1 JZ |
746 | } else if (strlen(name) == 6 && |
747 | !strncmp(name, "strict", 6)) { | |
63189b78 | 748 | F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT; |
d6290814 JK |
749 | } else if (strlen(name) == 9 && |
750 | !strncmp(name, "nobarrier", 9)) { | |
751 | F2FS_OPTION(sbi).fsync_mode = | |
752 | FSYNC_MODE_NOBARRIER; | |
93cf93f1 | 753 | } else { |
5222595d | 754 | kvfree(name); |
93cf93f1 JZ |
755 | return -EINVAL; |
756 | } | |
5222595d | 757 | kvfree(name); |
93cf93f1 | 758 | break; |
ff62af20 SY |
759 | case Opt_test_dummy_encryption: |
760 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
7beb01f7 | 761 | if (!f2fs_sb_has_encrypt(sbi)) { |
ff62af20 SY |
762 | f2fs_msg(sb, KERN_ERR, "Encrypt feature is off"); |
763 | return -EINVAL; | |
764 | } | |
765 | ||
766 | F2FS_OPTION(sbi).test_dummy_encryption = true; | |
767 | f2fs_msg(sb, KERN_INFO, | |
768 | "Test dummy encryption mode enabled"); | |
769 | #else | |
770 | f2fs_msg(sb, KERN_INFO, | |
771 | "Test dummy encryption mount option ignored"); | |
772 | #endif | |
773 | break; | |
4354994f DR |
774 | case Opt_checkpoint: |
775 | name = match_strdup(&args[0]); | |
776 | if (!name) | |
777 | return -ENOMEM; | |
778 | ||
779 | if (strlen(name) == 6 && | |
780 | !strncmp(name, "enable", 6)) { | |
781 | clear_opt(sbi, DISABLE_CHECKPOINT); | |
782 | } else if (strlen(name) == 7 && | |
783 | !strncmp(name, "disable", 7)) { | |
784 | set_opt(sbi, DISABLE_CHECKPOINT); | |
785 | } else { | |
5222595d | 786 | kvfree(name); |
4354994f DR |
787 | return -EINVAL; |
788 | } | |
5222595d | 789 | kvfree(name); |
4354994f | 790 | break; |
696c018c NJ |
791 | default: |
792 | f2fs_msg(sb, KERN_ERR, | |
793 | "Unrecognized mount option \"%s\" or missing value", | |
794 | p); | |
795 | return -EINVAL; | |
796 | } | |
797 | } | |
4b2414d0 CY |
798 | #ifdef CONFIG_QUOTA |
799 | if (f2fs_check_quota_options(sbi)) | |
800 | return -EINVAL; | |
00960c2c | 801 | #else |
7beb01f7 | 802 | if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) { |
00960c2c SY |
803 | f2fs_msg(sbi->sb, KERN_INFO, |
804 | "Filesystem with quota feature cannot be mounted RDWR " | |
805 | "without CONFIG_QUOTA"); | |
806 | return -EINVAL; | |
807 | } | |
7beb01f7 | 808 | if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) { |
4ddc1b28 CY |
809 | f2fs_msg(sb, KERN_ERR, |
810 | "Filesystem with project quota feature cannot be " | |
811 | "mounted RDWR without CONFIG_QUOTA"); | |
812 | return -EINVAL; | |
813 | } | |
4b2414d0 | 814 | #endif |
ec91538d JK |
815 | |
816 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
817 | f2fs_msg(sb, KERN_ERR, | |
818 | "Should set mode=lfs with %uKB-sized IO", | |
819 | F2FS_IO_SIZE_KB(sbi)); | |
820 | return -EINVAL; | |
821 | } | |
6afc662e CY |
822 | |
823 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
7beb01f7 CY |
824 | if (!f2fs_sb_has_extra_attr(sbi) || |
825 | !f2fs_sb_has_flexible_inline_xattr(sbi)) { | |
4d817ae0 CY |
826 | f2fs_msg(sb, KERN_ERR, |
827 | "extra_attr or flexible_inline_xattr " | |
828 | "feature is off"); | |
829 | return -EINVAL; | |
830 | } | |
6afc662e CY |
831 | if (!test_opt(sbi, INLINE_XATTR)) { |
832 | f2fs_msg(sb, KERN_ERR, | |
833 | "inline_xattr_size option should be " | |
834 | "set with inline_xattr option"); | |
835 | return -EINVAL; | |
836 | } | |
63189b78 CY |
837 | if (!F2FS_OPTION(sbi).inline_xattr_size || |
838 | F2FS_OPTION(sbi).inline_xattr_size >= | |
839 | DEF_ADDRS_PER_INODE - | |
6afc662e CY |
840 | F2FS_TOTAL_EXTRA_ATTR_SIZE - |
841 | DEF_INLINE_RESERVED_SIZE - | |
842 | DEF_MIN_INLINE_SIZE) { | |
843 | f2fs_msg(sb, KERN_ERR, | |
844 | "inline xattr size is out of range"); | |
845 | return -EINVAL; | |
846 | } | |
847 | } | |
0cdd3195 | 848 | |
4354994f DR |
849 | if (test_opt(sbi, DISABLE_CHECKPOINT) && test_opt(sbi, LFS)) { |
850 | f2fs_msg(sb, KERN_ERR, | |
851 | "LFS not compatible with checkpoint=disable\n"); | |
852 | return -EINVAL; | |
853 | } | |
854 | ||
0cdd3195 HL |
855 | /* Not pass down write hints if the number of active logs is lesser |
856 | * than NR_CURSEG_TYPE. | |
857 | */ | |
63189b78 CY |
858 | if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE) |
859 | F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; | |
696c018c NJ |
860 | return 0; |
861 | } | |
862 | ||
aff063e2 JK |
863 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
864 | { | |
865 | struct f2fs_inode_info *fi; | |
866 | ||
a0acdfe0 | 867 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
868 | if (!fi) |
869 | return NULL; | |
870 | ||
871 | init_once((void *) fi); | |
872 | ||
434720fa | 873 | /* Initialize f2fs-specific inode info */ |
204706c7 | 874 | atomic_set(&fi->dirty_pages, 0); |
d928bfbf | 875 | init_rwsem(&fi->i_sem); |
2710fd7e | 876 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 877 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 878 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
879 | INIT_LIST_HEAD(&fi->inmem_pages); |
880 | mutex_init(&fi->inmem_lock); | |
b2532c69 CY |
881 | init_rwsem(&fi->i_gc_rwsem[READ]); |
882 | init_rwsem(&fi->i_gc_rwsem[WRITE]); | |
5a3a2d83 | 883 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 884 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 885 | |
ab9fa662 JK |
886 | /* Will be used by directory only */ |
887 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 888 | |
aff063e2 JK |
889 | return &fi->vfs_inode; |
890 | } | |
891 | ||
531ad7d5 JK |
892 | static int f2fs_drop_inode(struct inode *inode) |
893 | { | |
b8d96a30 | 894 | int ret; |
531ad7d5 JK |
895 | /* |
896 | * This is to avoid a deadlock condition like below. | |
897 | * writeback_single_inode(inode) | |
898 | * - f2fs_write_data_page | |
899 | * - f2fs_gc -> iput -> evict | |
900 | * - inode_wait_for_writeback(inode) | |
901 | */ | |
0f18b462 | 902 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 903 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
904 | /* to avoid evict_inode call simultaneously */ |
905 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
906 | spin_unlock(&inode->i_lock); |
907 | ||
908 | /* some remained atomic pages should discarded */ | |
909 | if (f2fs_is_atomic_file(inode)) | |
4d57b86d | 910 | f2fs_drop_inmem_pages(inode); |
06e1bc05 | 911 | |
3e72f721 JK |
912 | /* should remain fi->extent_tree for writepage */ |
913 | f2fs_destroy_extent_node(inode); | |
914 | ||
06e1bc05 | 915 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 916 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
917 | |
918 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 919 | f2fs_truncate(inode); |
06e1bc05 JK |
920 | |
921 | sb_end_intwrite(inode->i_sb); | |
922 | ||
06e1bc05 | 923 | spin_lock(&inode->i_lock); |
3e72f721 | 924 | atomic_dec(&inode->i_count); |
06e1bc05 | 925 | } |
b8d96a30 | 926 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 927 | return 0; |
06e1bc05 | 928 | } |
b8d96a30 HP |
929 | ret = generic_drop_inode(inode); |
930 | trace_f2fs_drop_inode(inode, ret); | |
931 | return ret; | |
531ad7d5 JK |
932 | } |
933 | ||
7c45729a | 934 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 935 | { |
0f18b462 | 936 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 937 | int ret = 0; |
0f18b462 | 938 | |
0f18b462 JK |
939 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
940 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
941 | ret = 1; |
942 | } else { | |
943 | set_inode_flag(inode, FI_DIRTY_INODE); | |
944 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 945 | } |
7c45729a JK |
946 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
947 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 948 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
949 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
950 | } | |
338bbfa0 | 951 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 952 | return ret; |
0f18b462 JK |
953 | } |
954 | ||
955 | void f2fs_inode_synced(struct inode *inode) | |
956 | { | |
957 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
958 | ||
959 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
960 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
961 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
962 | return; | |
963 | } | |
7c45729a JK |
964 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
965 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
966 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
967 | } | |
0f18b462 | 968 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 969 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 970 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 971 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
972 | } |
973 | ||
b56ab837 JK |
974 | /* |
975 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
976 | * | |
977 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
978 | */ | |
979 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
980 | { | |
981 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
982 | ||
983 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
984 | inode->i_ino == F2FS_META_INO(sbi)) | |
985 | return; | |
986 | ||
987 | if (flags == I_DIRTY_TIME) | |
988 | return; | |
989 | ||
990 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
991 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
992 | ||
7c45729a | 993 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
994 | } |
995 | ||
aff063e2 JK |
996 | static void f2fs_i_callback(struct rcu_head *head) |
997 | { | |
998 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
999 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
1000 | } | |
1001 | ||
25ca923b | 1002 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
1003 | { |
1004 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
1005 | } | |
1006 | ||
523be8a6 JK |
1007 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
1008 | { | |
41382ec4 | 1009 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 1010 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
1011 | } |
1012 | ||
3c62be17 JK |
1013 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
1014 | { | |
1015 | int i; | |
1016 | ||
1017 | for (i = 0; i < sbi->s_ndevs; i++) { | |
1018 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
1019 | #ifdef CONFIG_BLK_DEV_ZONED | |
5222595d | 1020 | kvfree(FDEV(i).blkz_type); |
3c62be17 JK |
1021 | #endif |
1022 | } | |
5222595d | 1023 | kvfree(sbi->devs); |
3c62be17 JK |
1024 | } |
1025 | ||
aff063e2 JK |
1026 | static void f2fs_put_super(struct super_block *sb) |
1027 | { | |
1028 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 1029 | int i; |
cf5c759f | 1030 | bool dropped; |
aff063e2 | 1031 | |
0abd675e | 1032 | f2fs_quota_off_umount(sb); |
aff063e2 | 1033 | |
2658e50d JK |
1034 | /* prevent remaining shrinker jobs */ |
1035 | mutex_lock(&sbi->umount_mutex); | |
1036 | ||
85dc2f2c JK |
1037 | /* |
1038 | * We don't need to do checkpoint when superblock is clean. | |
1039 | * But, the previous checkpoint was not done by umount, it needs to do | |
1040 | * clean checkpoint again. | |
1041 | */ | |
4354994f DR |
1042 | if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
1043 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) { | |
75ab4cb8 JK |
1044 | struct cp_control cpc = { |
1045 | .reason = CP_UMOUNT, | |
1046 | }; | |
4d57b86d | 1047 | f2fs_write_checkpoint(sbi, &cpc); |
75ab4cb8 | 1048 | } |
aff063e2 | 1049 | |
4e6a8d9b | 1050 | /* be sure to wait for any on-going discard commands */ |
03f2c02d | 1051 | dropped = f2fs_issue_discard_timeout(sbi); |
4e6a8d9b | 1052 | |
7d20c8ab CY |
1053 | if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) && |
1054 | !sbi->discard_blks && !dropped) { | |
1f43e2ad CY |
1055 | struct cp_control cpc = { |
1056 | .reason = CP_UMOUNT | CP_TRIMMED, | |
1057 | }; | |
4d57b86d | 1058 | f2fs_write_checkpoint(sbi, &cpc); |
1f43e2ad CY |
1059 | } |
1060 | ||
cf779cab JK |
1061 | /* |
1062 | * normally superblock is clean, so we need to release this. | |
1063 | * In addition, EIO will skip do checkpoint, we need this as well. | |
1064 | */ | |
4d57b86d | 1065 | f2fs_release_ino_entry(sbi, true); |
6f12ac25 | 1066 | |
2658e50d JK |
1067 | f2fs_leave_shrinker(sbi); |
1068 | mutex_unlock(&sbi->umount_mutex); | |
1069 | ||
17c19120 | 1070 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 1071 | f2fs_flush_merged_writes(sbi); |
17c19120 | 1072 | |
50fa53ec CY |
1073 | f2fs_wait_on_all_pages_writeback(sbi); |
1074 | ||
1075 | f2fs_bug_on(sbi, sbi->fsync_node_num); | |
1076 | ||
aff063e2 | 1077 | iput(sbi->node_inode); |
7c77bf7d JK |
1078 | sbi->node_inode = NULL; |
1079 | ||
aff063e2 | 1080 | iput(sbi->meta_inode); |
7c77bf7d | 1081 | sbi->meta_inode = NULL; |
aff063e2 | 1082 | |
60aa4d55 ST |
1083 | /* |
1084 | * iput() can update stat information, if f2fs_write_checkpoint() | |
1085 | * above failed with error. | |
1086 | */ | |
1087 | f2fs_destroy_stats(sbi); | |
1088 | ||
aff063e2 | 1089 | /* destroy f2fs internal modules */ |
4d57b86d CY |
1090 | f2fs_destroy_node_manager(sbi); |
1091 | f2fs_destroy_segment_manager(sbi); | |
aff063e2 | 1092 | |
5222595d | 1093 | kvfree(sbi->ckpt); |
a398101a | 1094 | |
dc6b2055 | 1095 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
1096 | |
1097 | sb->s_fs_info = NULL; | |
43b6573b KM |
1098 | if (sbi->s_chksum_driver) |
1099 | crypto_free_shash(sbi->s_chksum_driver); | |
5222595d | 1100 | kvfree(sbi->raw_super); |
523be8a6 | 1101 | |
3c62be17 | 1102 | destroy_device_list(sbi); |
b6895e8f | 1103 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
1104 | #ifdef CONFIG_QUOTA |
1105 | for (i = 0; i < MAXQUOTAS; i++) | |
5222595d | 1106 | kvfree(F2FS_OPTION(sbi).s_qf_names[i]); |
4b2414d0 | 1107 | #endif |
523be8a6 | 1108 | destroy_percpu_info(sbi); |
a912b54d | 1109 | for (i = 0; i < NR_PAGE_TYPE; i++) |
5222595d JK |
1110 | kvfree(sbi->write_io[i]); |
1111 | kvfree(sbi); | |
aff063e2 JK |
1112 | } |
1113 | ||
1114 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
1115 | { | |
1116 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 1117 | int err = 0; |
aff063e2 | 1118 | |
1f227a3e JK |
1119 | if (unlikely(f2fs_cp_error(sbi))) |
1120 | return 0; | |
4354994f DR |
1121 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
1122 | return 0; | |
1f227a3e | 1123 | |
a2a4a7e4 NJ |
1124 | trace_f2fs_sync_fs(sb, sync); |
1125 | ||
4b2414d0 CY |
1126 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
1127 | return -EAGAIN; | |
1128 | ||
b7473754 | 1129 | if (sync) { |
d5053a34 JK |
1130 | struct cp_control cpc; |
1131 | ||
119ee914 JK |
1132 | cpc.reason = __get_cp_reason(sbi); |
1133 | ||
b7473754 | 1134 | mutex_lock(&sbi->gc_mutex); |
4d57b86d | 1135 | err = f2fs_write_checkpoint(sbi, &cpc); |
b7473754 | 1136 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 1137 | } |
05ca3632 | 1138 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 1139 | |
c34f42e2 | 1140 | return err; |
aff063e2 JK |
1141 | } |
1142 | ||
d6212a5f CL |
1143 | static int f2fs_freeze(struct super_block *sb) |
1144 | { | |
77888c1e | 1145 | if (f2fs_readonly(sb)) |
d6212a5f CL |
1146 | return 0; |
1147 | ||
b4b9d34c JK |
1148 | /* IO error happened before */ |
1149 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
1150 | return -EIO; | |
1151 | ||
1152 | /* must be clean, since sync_filesystem() was already called */ | |
1153 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
1154 | return -EINVAL; | |
1155 | return 0; | |
d6212a5f CL |
1156 | } |
1157 | ||
1158 | static int f2fs_unfreeze(struct super_block *sb) | |
1159 | { | |
1160 | return 0; | |
1161 | } | |
1162 | ||
ddc34e32 CY |
1163 | #ifdef CONFIG_QUOTA |
1164 | static int f2fs_statfs_project(struct super_block *sb, | |
1165 | kprojid_t projid, struct kstatfs *buf) | |
1166 | { | |
1167 | struct kqid qid; | |
1168 | struct dquot *dquot; | |
1169 | u64 limit; | |
1170 | u64 curblock; | |
1171 | ||
1172 | qid = make_kqid_projid(projid); | |
1173 | dquot = dqget(sb, qid); | |
1174 | if (IS_ERR(dquot)) | |
1175 | return PTR_ERR(dquot); | |
955ac6e5 | 1176 | spin_lock(&dquot->dq_dqb_lock); |
ddc34e32 CY |
1177 | |
1178 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
1179 | dquot->dq_dqb.dqb_bsoftlimit : | |
1180 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
1181 | if (limit && buf->f_blocks > limit) { | |
1182 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
1183 | buf->f_blocks = limit; | |
1184 | buf->f_bfree = buf->f_bavail = | |
1185 | (buf->f_blocks > curblock) ? | |
1186 | (buf->f_blocks - curblock) : 0; | |
1187 | } | |
1188 | ||
1189 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
1190 | dquot->dq_dqb.dqb_isoftlimit : | |
1191 | dquot->dq_dqb.dqb_ihardlimit; | |
1192 | if (limit && buf->f_files > limit) { | |
1193 | buf->f_files = limit; | |
1194 | buf->f_ffree = | |
1195 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
1196 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
1197 | } | |
1198 | ||
955ac6e5 | 1199 | spin_unlock(&dquot->dq_dqb_lock); |
ddc34e32 CY |
1200 | dqput(dquot); |
1201 | return 0; | |
1202 | } | |
1203 | #endif | |
1204 | ||
aff063e2 JK |
1205 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1206 | { | |
1207 | struct super_block *sb = dentry->d_sb; | |
1208 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1209 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
f66c027e | 1210 | block_t total_count, user_block_count, start_count; |
0cc091d0 | 1211 | u64 avail_node_count; |
aff063e2 JK |
1212 | |
1213 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1214 | user_block_count = sbi->user_block_count; | |
1215 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
aff063e2 JK |
1216 | buf->f_type = F2FS_SUPER_MAGIC; |
1217 | buf->f_bsize = sbi->blocksize; | |
1218 | ||
1219 | buf->f_blocks = total_count - start_count; | |
f66c027e | 1220 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1221 | sbi->current_reserved_blocks; |
4354994f DR |
1222 | if (unlikely(buf->f_bfree <= sbi->unusable_block_count)) |
1223 | buf->f_bfree = 0; | |
1224 | else | |
1225 | buf->f_bfree -= sbi->unusable_block_count; | |
1226 | ||
63189b78 CY |
1227 | if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks) |
1228 | buf->f_bavail = buf->f_bfree - | |
1229 | F2FS_OPTION(sbi).root_reserved_blocks; | |
7e65be49 JK |
1230 | else |
1231 | buf->f_bavail = 0; | |
aff063e2 | 1232 | |
292c196a CY |
1233 | avail_node_count = sbi->total_node_count - sbi->nquota_files - |
1234 | F2FS_RESERVED_NODE_NUM; | |
0cc091d0 JK |
1235 | |
1236 | if (avail_node_count > user_block_count) { | |
1237 | buf->f_files = user_block_count; | |
1238 | buf->f_ffree = buf->f_bavail; | |
1239 | } else { | |
1240 | buf->f_files = avail_node_count; | |
1241 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1242 | buf->f_bavail); | |
1243 | } | |
aff063e2 | 1244 | |
5a20d339 | 1245 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1246 | buf->f_fsid.val[0] = (u32)id; |
1247 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1248 | ||
ddc34e32 CY |
1249 | #ifdef CONFIG_QUOTA |
1250 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1251 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1252 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1253 | } | |
1254 | #endif | |
aff063e2 JK |
1255 | return 0; |
1256 | } | |
1257 | ||
4b2414d0 CY |
1258 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1259 | struct super_block *sb) | |
1260 | { | |
1261 | #ifdef CONFIG_QUOTA | |
1262 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1263 | ||
63189b78 | 1264 | if (F2FS_OPTION(sbi).s_jquota_fmt) { |
4b2414d0 CY |
1265 | char *fmtname = ""; |
1266 | ||
63189b78 | 1267 | switch (F2FS_OPTION(sbi).s_jquota_fmt) { |
4b2414d0 CY |
1268 | case QFMT_VFS_OLD: |
1269 | fmtname = "vfsold"; | |
1270 | break; | |
1271 | case QFMT_VFS_V0: | |
1272 | fmtname = "vfsv0"; | |
1273 | break; | |
1274 | case QFMT_VFS_V1: | |
1275 | fmtname = "vfsv1"; | |
1276 | break; | |
1277 | } | |
1278 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1279 | } | |
1280 | ||
63189b78 CY |
1281 | if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) |
1282 | seq_show_option(seq, "usrjquota", | |
1283 | F2FS_OPTION(sbi).s_qf_names[USRQUOTA]); | |
4b2414d0 | 1284 | |
63189b78 CY |
1285 | if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) |
1286 | seq_show_option(seq, "grpjquota", | |
1287 | F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]); | |
4b2414d0 | 1288 | |
63189b78 CY |
1289 | if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) |
1290 | seq_show_option(seq, "prjjquota", | |
1291 | F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]); | |
4b2414d0 CY |
1292 | #endif |
1293 | } | |
1294 | ||
aff063e2 JK |
1295 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1296 | { | |
1297 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1298 | ||
6aefd93b JK |
1299 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1300 | if (test_opt(sbi, FORCE_FG_GC)) | |
1301 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1302 | else | |
1303 | seq_printf(seq, ",background_gc=%s", "on"); | |
1304 | } else { | |
696c018c | 1305 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1306 | } |
aff063e2 JK |
1307 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1308 | seq_puts(seq, ",disable_roll_forward"); | |
1309 | if (test_opt(sbi, DISCARD)) | |
1310 | seq_puts(seq, ",discard"); | |
1311 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1312 | seq_puts(seq, ",no_heap"); |
1313 | else | |
1314 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1315 | #ifdef CONFIG_F2FS_FS_XATTR |
1316 | if (test_opt(sbi, XATTR_USER)) | |
1317 | seq_puts(seq, ",user_xattr"); | |
1318 | else | |
1319 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1320 | if (test_opt(sbi, INLINE_XATTR)) |
1321 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1322 | else |
1323 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1324 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1325 | seq_printf(seq, ",inline_xattr_size=%u", | |
63189b78 | 1326 | F2FS_OPTION(sbi).inline_xattr_size); |
aff063e2 JK |
1327 | #endif |
1328 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1329 | if (test_opt(sbi, POSIX_ACL)) | |
1330 | seq_puts(seq, ",acl"); | |
1331 | else | |
1332 | seq_puts(seq, ",noacl"); | |
1333 | #endif | |
1334 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1335 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1336 | if (test_opt(sbi, INLINE_DATA)) |
1337 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1338 | else |
1339 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1340 | if (test_opt(sbi, INLINE_DENTRY)) |
1341 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1342 | else |
1343 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1344 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1345 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1346 | if (test_opt(sbi, NOBARRIER)) |
1347 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1348 | if (test_opt(sbi, FASTBOOT)) |
1349 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1350 | if (test_opt(sbi, EXTENT_CACHE)) |
1351 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1352 | else |
1353 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1354 | if (test_opt(sbi, DATA_FLUSH)) |
1355 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1356 | |
1357 | seq_puts(seq, ",mode="); | |
1358 | if (test_opt(sbi, ADAPTIVE)) | |
1359 | seq_puts(seq, "adaptive"); | |
1360 | else if (test_opt(sbi, LFS)) | |
1361 | seq_puts(seq, "lfs"); | |
63189b78 | 1362 | seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs); |
7e65be49 | 1363 | if (test_opt(sbi, RESERVE_ROOT)) |
7c2e5963 | 1364 | seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u", |
63189b78 CY |
1365 | F2FS_OPTION(sbi).root_reserved_blocks, |
1366 | from_kuid_munged(&init_user_ns, | |
1367 | F2FS_OPTION(sbi).s_resuid), | |
1368 | from_kgid_munged(&init_user_ns, | |
1369 | F2FS_OPTION(sbi).s_resgid)); | |
ec91538d | 1370 | if (F2FS_IO_SIZE_BITS(sbi)) |
c6b1867b CX |
1371 | seq_printf(seq, ",io_bits=%u", |
1372 | F2FS_OPTION(sbi).write_io_size_bits); | |
0cc0dec2 | 1373 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
d494500a | 1374 | if (test_opt(sbi, FAULT_INJECTION)) { |
44529f89 | 1375 | seq_printf(seq, ",fault_injection=%u", |
63189b78 | 1376 | F2FS_OPTION(sbi).fault_info.inject_rate); |
d494500a CY |
1377 | seq_printf(seq, ",fault_type=%u", |
1378 | F2FS_OPTION(sbi).fault_info.inject_type); | |
1379 | } | |
0cc0dec2 | 1380 | #endif |
0abd675e | 1381 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1382 | if (test_opt(sbi, QUOTA)) |
1383 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1384 | if (test_opt(sbi, USRQUOTA)) |
1385 | seq_puts(seq, ",usrquota"); | |
1386 | if (test_opt(sbi, GRPQUOTA)) | |
1387 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1388 | if (test_opt(sbi, PRJQUOTA)) |
1389 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1390 | #endif |
4b2414d0 | 1391 | f2fs_show_quota_options(seq, sbi->sb); |
63189b78 | 1392 | if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER) |
0cdd3195 | 1393 | seq_printf(seq, ",whint_mode=%s", "user-based"); |
63189b78 | 1394 | else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS) |
f2e703f9 | 1395 | seq_printf(seq, ",whint_mode=%s", "fs-based"); |
ff62af20 SY |
1396 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1397 | if (F2FS_OPTION(sbi).test_dummy_encryption) | |
1398 | seq_puts(seq, ",test_dummy_encryption"); | |
1399 | #endif | |
aff063e2 | 1400 | |
63189b78 | 1401 | if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT) |
07939627 | 1402 | seq_printf(seq, ",alloc_mode=%s", "default"); |
63189b78 | 1403 | else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE) |
07939627 | 1404 | seq_printf(seq, ",alloc_mode=%s", "reuse"); |
93cf93f1 | 1405 | |
4354994f DR |
1406 | if (test_opt(sbi, DISABLE_CHECKPOINT)) |
1407 | seq_puts(seq, ",checkpoint=disable"); | |
1408 | ||
63189b78 | 1409 | if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX) |
93cf93f1 | 1410 | seq_printf(seq, ",fsync_mode=%s", "posix"); |
63189b78 | 1411 | else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) |
93cf93f1 | 1412 | seq_printf(seq, ",fsync_mode=%s", "strict"); |
dc132802 ST |
1413 | else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER) |
1414 | seq_printf(seq, ",fsync_mode=%s", "nobarrier"); | |
aff063e2 JK |
1415 | return 0; |
1416 | } | |
1417 | ||
498c5e9f YH |
1418 | static void default_options(struct f2fs_sb_info *sbi) |
1419 | { | |
1420 | /* init some FS parameters */ | |
63189b78 CY |
1421 | F2FS_OPTION(sbi).active_logs = NR_CURSEG_TYPE; |
1422 | F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; | |
1423 | F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; | |
1424 | F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; | |
1425 | F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; | |
ff62af20 | 1426 | F2FS_OPTION(sbi).test_dummy_encryption = false; |
0aa7e0f8 CY |
1427 | F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); |
1428 | F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); | |
498c5e9f YH |
1429 | |
1430 | set_opt(sbi, BG_GC); | |
39133a50 | 1431 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1432 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1433 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1434 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1435 | set_opt(sbi, NOHEAP); |
4354994f | 1436 | clear_opt(sbi, DISABLE_CHECKPOINT); |
1751e8a6 | 1437 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1438 | set_opt(sbi, FLUSH_MERGE); |
7d20c8ab | 1439 | set_opt(sbi, DISCARD); |
7beb01f7 | 1440 | if (f2fs_sb_has_blkzoned(sbi)) |
a39e5365 CY |
1441 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1442 | else | |
52763a4b | 1443 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
498c5e9f YH |
1444 | |
1445 | #ifdef CONFIG_F2FS_FS_XATTR | |
1446 | set_opt(sbi, XATTR_USER); | |
1447 | #endif | |
1448 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1449 | set_opt(sbi, POSIX_ACL); | |
1450 | #endif | |
36dbd328 | 1451 | |
d494500a | 1452 | f2fs_build_fault_attr(sbi, 0, 0); |
498c5e9f YH |
1453 | } |
1454 | ||
ea676733 JK |
1455 | #ifdef CONFIG_QUOTA |
1456 | static int f2fs_enable_quotas(struct super_block *sb); | |
1457 | #endif | |
4354994f DR |
1458 | |
1459 | static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) | |
1460 | { | |
812a9597 | 1461 | unsigned int s_flags = sbi->sb->s_flags; |
4354994f | 1462 | struct cp_control cpc; |
812a9597 JK |
1463 | int err = 0; |
1464 | int ret; | |
4354994f | 1465 | |
812a9597 JK |
1466 | if (s_flags & SB_RDONLY) { |
1467 | f2fs_msg(sbi->sb, KERN_ERR, | |
1468 | "checkpoint=disable on readonly fs"); | |
1469 | return -EINVAL; | |
1470 | } | |
4354994f DR |
1471 | sbi->sb->s_flags |= SB_ACTIVE; |
1472 | ||
4354994f DR |
1473 | f2fs_update_time(sbi, DISABLE_TIME); |
1474 | ||
1475 | while (!f2fs_time_over(sbi, DISABLE_TIME)) { | |
8f31b466 | 1476 | mutex_lock(&sbi->gc_mutex); |
4354994f | 1477 | err = f2fs_gc(sbi, true, false, NULL_SEGNO); |
812a9597 JK |
1478 | if (err == -ENODATA) { |
1479 | err = 0; | |
4354994f | 1480 | break; |
812a9597 | 1481 | } |
8f31b466 | 1482 | if (err && err != -EAGAIN) |
812a9597 | 1483 | break; |
4354994f | 1484 | } |
4354994f | 1485 | |
812a9597 JK |
1486 | ret = sync_filesystem(sbi->sb); |
1487 | if (ret || err) { | |
1488 | err = ret ? ret: err; | |
1489 | goto restore_flag; | |
1490 | } | |
4354994f | 1491 | |
812a9597 JK |
1492 | if (f2fs_disable_cp_again(sbi)) { |
1493 | err = -EAGAIN; | |
1494 | goto restore_flag; | |
1495 | } | |
4354994f DR |
1496 | |
1497 | mutex_lock(&sbi->gc_mutex); | |
1498 | cpc.reason = CP_PAUSE; | |
1499 | set_sbi_flag(sbi, SBI_CP_DISABLED); | |
1500 | f2fs_write_checkpoint(sbi, &cpc); | |
1501 | ||
1502 | sbi->unusable_block_count = 0; | |
1503 | mutex_unlock(&sbi->gc_mutex); | |
812a9597 JK |
1504 | restore_flag: |
1505 | sbi->sb->s_flags = s_flags; /* Restore MS_RDONLY status */ | |
1506 | return err; | |
4354994f DR |
1507 | } |
1508 | ||
1509 | static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi) | |
1510 | { | |
1511 | mutex_lock(&sbi->gc_mutex); | |
1512 | f2fs_dirty_to_prefree(sbi); | |
1513 | ||
1514 | clear_sbi_flag(sbi, SBI_CP_DISABLED); | |
1515 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1516 | mutex_unlock(&sbi->gc_mutex); | |
1517 | ||
1518 | f2fs_sync_fs(sbi->sb, 1); | |
1519 | } | |
1520 | ||
696c018c NJ |
1521 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1522 | { | |
1523 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1524 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1525 | unsigned long old_sb_flags; |
63189b78 | 1526 | int err; |
876dc59e GZ |
1527 | bool need_restart_gc = false; |
1528 | bool need_stop_gc = false; | |
9cd81ce3 | 1529 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
4354994f DR |
1530 | bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT); |
1531 | bool checkpoint_changed; | |
4b2414d0 | 1532 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1533 | int i, j; |
1534 | #endif | |
696c018c NJ |
1535 | |
1536 | /* | |
1537 | * Save the old mount options in case we | |
1538 | * need to restore them. | |
1539 | */ | |
1540 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1541 | old_sb_flags = sb->s_flags; |
696c018c | 1542 | |
4b2414d0 | 1543 | #ifdef CONFIG_QUOTA |
63189b78 | 1544 | org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt; |
4b2414d0 | 1545 | for (i = 0; i < MAXQUOTAS; i++) { |
63189b78 CY |
1546 | if (F2FS_OPTION(sbi).s_qf_names[i]) { |
1547 | org_mount_opt.s_qf_names[i] = | |
1548 | kstrdup(F2FS_OPTION(sbi).s_qf_names[i], | |
1549 | GFP_KERNEL); | |
1550 | if (!org_mount_opt.s_qf_names[i]) { | |
4b2414d0 | 1551 | for (j = 0; j < i; j++) |
5222595d | 1552 | kvfree(org_mount_opt.s_qf_names[j]); |
4b2414d0 CY |
1553 | return -ENOMEM; |
1554 | } | |
1555 | } else { | |
63189b78 | 1556 | org_mount_opt.s_qf_names[i] = NULL; |
4b2414d0 CY |
1557 | } |
1558 | } | |
1559 | #endif | |
1560 | ||
df728b0f | 1561 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1562 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1563 | err = f2fs_commit_super(sbi, false); |
1564 | f2fs_msg(sb, KERN_INFO, | |
1565 | "Try to recover all the superblocks, ret: %d", err); | |
1566 | if (!err) | |
1567 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1568 | } | |
1569 | ||
498c5e9f | 1570 | default_options(sbi); |
26666c8a | 1571 | |
696c018c NJ |
1572 | /* parse mount options */ |
1573 | err = parse_options(sb, data); | |
1574 | if (err) | |
1575 | goto restore_opts; | |
4354994f DR |
1576 | checkpoint_changed = |
1577 | disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT); | |
696c018c NJ |
1578 | |
1579 | /* | |
1580 | * Previous and new state of filesystem is RO, | |
876dc59e | 1581 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1582 | */ |
1751e8a6 | 1583 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1584 | goto skip; |
1585 | ||
ea676733 | 1586 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1587 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1588 | err = dquot_suspend(sb, -1); |
1589 | if (err < 0) | |
1590 | goto restore_opts; | |
4354994f | 1591 | } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) { |
0abd675e | 1592 | /* dquot_resume needs RW */ |
1751e8a6 | 1593 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1594 | if (sb_any_quota_suspended(sb)) { |
1595 | dquot_resume(sb, -1); | |
7beb01f7 | 1596 | } else if (f2fs_sb_has_quota_ino(sbi)) { |
ea676733 JK |
1597 | err = f2fs_enable_quotas(sb); |
1598 | if (err) | |
1599 | goto restore_opts; | |
1600 | } | |
0abd675e | 1601 | } |
ea676733 | 1602 | #endif |
9cd81ce3 CY |
1603 | /* disallow enable/disable extent_cache dynamically */ |
1604 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1605 | err = -EINVAL; | |
1606 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1607 | "switch extent_cache option is not allowed"); | |
1608 | goto restore_opts; | |
1609 | } | |
1610 | ||
4354994f DR |
1611 | if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) { |
1612 | err = -EINVAL; | |
1613 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1614 | "disabling checkpoint not compatible with read-only"); | |
1615 | goto restore_opts; | |
1616 | } | |
1617 | ||
696c018c NJ |
1618 | /* |
1619 | * We stop the GC thread if FS is mounted as RO | |
1620 | * or if background_gc = off is passed in mount | |
1621 | * option. Also sync the filesystem. | |
1622 | */ | |
1751e8a6 | 1623 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c | 1624 | if (sbi->gc_thread) { |
4d57b86d | 1625 | f2fs_stop_gc_thread(sbi); |
876dc59e | 1626 | need_restart_gc = true; |
696c018c | 1627 | } |
aba291b3 | 1628 | } else if (!sbi->gc_thread) { |
4d57b86d | 1629 | err = f2fs_start_gc_thread(sbi); |
696c018c NJ |
1630 | if (err) |
1631 | goto restore_opts; | |
876dc59e GZ |
1632 | need_stop_gc = true; |
1633 | } | |
1634 | ||
63189b78 CY |
1635 | if (*flags & SB_RDONLY || |
1636 | F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) { | |
faa0e55b JK |
1637 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1638 | sync_inodes_sb(sb); | |
1639 | ||
1640 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1641 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1642 | f2fs_sync_fs(sb, 1); | |
1643 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1644 | } | |
1645 | ||
4354994f DR |
1646 | if (checkpoint_changed) { |
1647 | if (test_opt(sbi, DISABLE_CHECKPOINT)) { | |
1648 | err = f2fs_disable_checkpoint(sbi); | |
1649 | if (err) | |
1650 | goto restore_gc; | |
1651 | } else { | |
1652 | f2fs_enable_checkpoint(sbi); | |
1653 | } | |
1654 | } | |
1655 | ||
876dc59e GZ |
1656 | /* |
1657 | * We stop issue flush thread if FS is mounted as RO | |
1658 | * or if flush_merge is not passed in mount option. | |
1659 | */ | |
1751e8a6 | 1660 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d | 1661 | clear_opt(sbi, FLUSH_MERGE); |
4d57b86d | 1662 | f2fs_destroy_flush_cmd_control(sbi, false); |
5eba8c5d | 1663 | } else { |
4d57b86d | 1664 | err = f2fs_create_flush_cmd_control(sbi); |
2163d198 | 1665 | if (err) |
a688b9d9 | 1666 | goto restore_gc; |
696c018c NJ |
1667 | } |
1668 | skip: | |
4b2414d0 CY |
1669 | #ifdef CONFIG_QUOTA |
1670 | /* Release old quota file names */ | |
1671 | for (i = 0; i < MAXQUOTAS; i++) | |
5222595d | 1672 | kvfree(org_mount_opt.s_qf_names[i]); |
4b2414d0 | 1673 | #endif |
696c018c | 1674 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1675 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1676 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1677 | |
7e65be49 | 1678 | limit_reserve_root(sbi); |
095680f2 | 1679 | *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); |
696c018c | 1680 | return 0; |
876dc59e GZ |
1681 | restore_gc: |
1682 | if (need_restart_gc) { | |
4d57b86d | 1683 | if (f2fs_start_gc_thread(sbi)) |
876dc59e | 1684 | f2fs_msg(sbi->sb, KERN_WARNING, |
e1c42045 | 1685 | "background gc thread has stopped"); |
876dc59e | 1686 | } else if (need_stop_gc) { |
4d57b86d | 1687 | f2fs_stop_gc_thread(sbi); |
876dc59e | 1688 | } |
696c018c | 1689 | restore_opts: |
4b2414d0 | 1690 | #ifdef CONFIG_QUOTA |
63189b78 | 1691 | F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt; |
4b2414d0 | 1692 | for (i = 0; i < MAXQUOTAS; i++) { |
5222595d | 1693 | kvfree(F2FS_OPTION(sbi).s_qf_names[i]); |
63189b78 | 1694 | F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i]; |
4b2414d0 CY |
1695 | } |
1696 | #endif | |
696c018c | 1697 | sbi->mount_opt = org_mount_opt; |
0abd675e | 1698 | sb->s_flags = old_sb_flags; |
696c018c NJ |
1699 | return err; |
1700 | } | |
1701 | ||
0abd675e CY |
1702 | #ifdef CONFIG_QUOTA |
1703 | /* Read data from quotafile */ | |
1704 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1705 | size_t len, loff_t off) | |
1706 | { | |
1707 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1708 | struct address_space *mapping = inode->i_mapping; | |
1709 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1710 | int offset = off & (sb->s_blocksize - 1); | |
1711 | int tocopy; | |
1712 | size_t toread; | |
1713 | loff_t i_size = i_size_read(inode); | |
1714 | struct page *page; | |
1715 | char *kaddr; | |
1716 | ||
1717 | if (off > i_size) | |
1718 | return 0; | |
1719 | ||
1720 | if (off + len > i_size) | |
1721 | len = i_size - off; | |
1722 | toread = len; | |
1723 | while (toread > 0) { | |
1724 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1725 | repeat: | |
02117b8a | 1726 | page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS); |
4e46a023 JK |
1727 | if (IS_ERR(page)) { |
1728 | if (PTR_ERR(page) == -ENOMEM) { | |
1729 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1730 | goto repeat; | |
1731 | } | |
af033b2a | 1732 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
0abd675e | 1733 | return PTR_ERR(page); |
4e46a023 | 1734 | } |
0abd675e CY |
1735 | |
1736 | lock_page(page); | |
1737 | ||
1738 | if (unlikely(page->mapping != mapping)) { | |
1739 | f2fs_put_page(page, 1); | |
1740 | goto repeat; | |
1741 | } | |
1742 | if (unlikely(!PageUptodate(page))) { | |
1743 | f2fs_put_page(page, 1); | |
af033b2a | 1744 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
0abd675e CY |
1745 | return -EIO; |
1746 | } | |
1747 | ||
1748 | kaddr = kmap_atomic(page); | |
1749 | memcpy(data, kaddr + offset, tocopy); | |
1750 | kunmap_atomic(kaddr); | |
1751 | f2fs_put_page(page, 1); | |
1752 | ||
1753 | offset = 0; | |
1754 | toread -= tocopy; | |
1755 | data += tocopy; | |
1756 | blkidx++; | |
1757 | } | |
1758 | return len; | |
1759 | } | |
1760 | ||
1761 | /* Write to quotafile */ | |
1762 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1763 | const char *data, size_t len, loff_t off) | |
1764 | { | |
1765 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1766 | struct address_space *mapping = inode->i_mapping; | |
1767 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1768 | int offset = off & (sb->s_blocksize - 1); | |
1769 | size_t towrite = len; | |
1770 | struct page *page; | |
1771 | char *kaddr; | |
1772 | int err = 0; | |
1773 | int tocopy; | |
1774 | ||
1775 | while (towrite > 0) { | |
1776 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1777 | towrite); | |
4e46a023 | 1778 | retry: |
0abd675e CY |
1779 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1780 | &page, NULL); | |
4e46a023 JK |
1781 | if (unlikely(err)) { |
1782 | if (err == -ENOMEM) { | |
1783 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1784 | goto retry; | |
1785 | } | |
af033b2a | 1786 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
0abd675e | 1787 | break; |
4e46a023 | 1788 | } |
0abd675e CY |
1789 | |
1790 | kaddr = kmap_atomic(page); | |
1791 | memcpy(kaddr + offset, data, tocopy); | |
1792 | kunmap_atomic(kaddr); | |
1793 | flush_dcache_page(page); | |
1794 | ||
1795 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1796 | page, NULL); | |
1797 | offset = 0; | |
1798 | towrite -= tocopy; | |
1799 | off += tocopy; | |
1800 | data += tocopy; | |
1801 | cond_resched(); | |
1802 | } | |
1803 | ||
1804 | if (len == towrite) | |
6e5b5d41 | 1805 | return err; |
0abd675e CY |
1806 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1807 | f2fs_mark_inode_dirty_sync(inode, false); | |
1808 | return len - towrite; | |
1809 | } | |
1810 | ||
1811 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1812 | { | |
1813 | return F2FS_I(inode)->i_dquot; | |
1814 | } | |
1815 | ||
1816 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1817 | { | |
1818 | return &F2FS_I(inode)->i_reserved_quota; | |
1819 | } | |
1820 | ||
4b2414d0 CY |
1821 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1822 | { | |
af033b2a CY |
1823 | if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) { |
1824 | f2fs_msg(sbi->sb, KERN_ERR, | |
1825 | "quota sysfile may be corrupted, skip loading it"); | |
1826 | return 0; | |
1827 | } | |
1828 | ||
63189b78 CY |
1829 | return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type], |
1830 | F2FS_OPTION(sbi).s_jquota_fmt, type); | |
4b2414d0 CY |
1831 | } |
1832 | ||
ea676733 | 1833 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1834 | { |
ea676733 JK |
1835 | int enabled = 0; |
1836 | int i, err; | |
1837 | ||
7beb01f7 | 1838 | if (f2fs_sb_has_quota_ino(sbi) && rdonly) { |
ea676733 JK |
1839 | err = f2fs_enable_quotas(sbi->sb); |
1840 | if (err) { | |
1841 | f2fs_msg(sbi->sb, KERN_ERR, | |
1842 | "Cannot turn on quota_ino: %d", err); | |
1843 | return 0; | |
1844 | } | |
1845 | return 1; | |
1846 | } | |
4b2414d0 CY |
1847 | |
1848 | for (i = 0; i < MAXQUOTAS; i++) { | |
63189b78 | 1849 | if (F2FS_OPTION(sbi).s_qf_names[i]) { |
ea676733 JK |
1850 | err = f2fs_quota_on_mount(sbi, i); |
1851 | if (!err) { | |
1852 | enabled = 1; | |
1853 | continue; | |
1854 | } | |
1855 | f2fs_msg(sbi->sb, KERN_ERR, | |
1856 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1857 | } |
1858 | } | |
ea676733 JK |
1859 | return enabled; |
1860 | } | |
1861 | ||
1862 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1863 | unsigned int flags) | |
1864 | { | |
1865 | struct inode *qf_inode; | |
1866 | unsigned long qf_inum; | |
1867 | int err; | |
1868 | ||
7beb01f7 | 1869 | BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb))); |
ea676733 JK |
1870 | |
1871 | qf_inum = f2fs_qf_ino(sb, type); | |
1872 | if (!qf_inum) | |
1873 | return -EPERM; | |
1874 | ||
1875 | qf_inode = f2fs_iget(sb, qf_inum); | |
1876 | if (IS_ERR(qf_inode)) { | |
1877 | f2fs_msg(sb, KERN_ERR, | |
1878 | "Bad quota inode %u:%lu", type, qf_inum); | |
1879 | return PTR_ERR(qf_inode); | |
1880 | } | |
1881 | ||
1882 | /* Don't account quota for quota files to avoid recursion */ | |
1883 | qf_inode->i_flags |= S_NOQUOTA; | |
1884 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1885 | iput(qf_inode); | |
1886 | return err; | |
1887 | } | |
1888 | ||
1889 | static int f2fs_enable_quotas(struct super_block *sb) | |
1890 | { | |
1891 | int type, err = 0; | |
1892 | unsigned long qf_inum; | |
1893 | bool quota_mopt[MAXQUOTAS] = { | |
1894 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1895 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1896 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1897 | }; | |
1898 | ||
af033b2a CY |
1899 | if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) { |
1900 | f2fs_msg(sb, KERN_ERR, | |
1901 | "quota file may be corrupted, skip loading it"); | |
1902 | return 0; | |
1903 | } | |
1904 | ||
1905 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; | |
1906 | ||
ea676733 JK |
1907 | for (type = 0; type < MAXQUOTAS; type++) { |
1908 | qf_inum = f2fs_qf_ino(sb, type); | |
1909 | if (qf_inum) { | |
1910 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1911 | DQUOT_USAGE_ENABLED | | |
1912 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1913 | if (err) { | |
1914 | f2fs_msg(sb, KERN_ERR, | |
1915 | "Failed to enable quota tracking " | |
1916 | "(type=%d, err=%d). Please run " | |
1917 | "fsck to fix.", type, err); | |
1918 | for (type--; type >= 0; type--) | |
1919 | dquot_quota_off(sb, type); | |
af033b2a CY |
1920 | set_sbi_flag(F2FS_SB(sb), |
1921 | SBI_QUOTA_NEED_REPAIR); | |
ea676733 JK |
1922 | return err; |
1923 | } | |
4b2414d0 CY |
1924 | } |
1925 | } | |
ea676733 | 1926 | return 0; |
4b2414d0 CY |
1927 | } |
1928 | ||
af033b2a | 1929 | int f2fs_quota_sync(struct super_block *sb, int type) |
0abd675e | 1930 | { |
af033b2a | 1931 | struct f2fs_sb_info *sbi = F2FS_SB(sb); |
0abd675e CY |
1932 | struct quota_info *dqopt = sb_dqopt(sb); |
1933 | int cnt; | |
1934 | int ret; | |
1935 | ||
1936 | ret = dquot_writeback_dquots(sb, type); | |
1937 | if (ret) | |
af033b2a | 1938 | goto out; |
0abd675e CY |
1939 | |
1940 | /* | |
1941 | * Now when everything is written we can discard the pagecache so | |
1942 | * that userspace sees the changes. | |
1943 | */ | |
1944 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
af033b2a CY |
1945 | struct address_space *mapping; |
1946 | ||
0abd675e CY |
1947 | if (type != -1 && cnt != type) |
1948 | continue; | |
1949 | if (!sb_has_quota_active(sb, cnt)) | |
1950 | continue; | |
1951 | ||
af033b2a CY |
1952 | mapping = dqopt->files[cnt]->i_mapping; |
1953 | ||
1954 | ret = filemap_fdatawrite(mapping); | |
0abd675e | 1955 | if (ret) |
af033b2a CY |
1956 | goto out; |
1957 | ||
1958 | /* if we are using journalled quota */ | |
1959 | if (is_journalled_quota(sbi)) | |
1960 | continue; | |
1961 | ||
1962 | ret = filemap_fdatawait(mapping); | |
1963 | if (ret) | |
1964 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); | |
0abd675e CY |
1965 | |
1966 | inode_lock(dqopt->files[cnt]); | |
1967 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1968 | inode_unlock(dqopt->files[cnt]); | |
1969 | } | |
af033b2a CY |
1970 | out: |
1971 | if (ret) | |
1972 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); | |
1973 | return ret; | |
0abd675e CY |
1974 | } |
1975 | ||
1976 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1977 | const struct path *path) | |
1978 | { | |
1979 | struct inode *inode; | |
1980 | int err; | |
1981 | ||
9a20d391 | 1982 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1983 | if (err) |
1984 | return err; | |
1985 | ||
1986 | err = dquot_quota_on(sb, type, format_id, path); | |
1987 | if (err) | |
1988 | return err; | |
1989 | ||
1990 | inode = d_inode(path->dentry); | |
1991 | ||
1992 | inode_lock(inode); | |
59c84408 | 1993 | F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL; |
9149a5eb | 1994 | f2fs_set_inode_flags(inode); |
0abd675e CY |
1995 | inode_unlock(inode); |
1996 | f2fs_mark_inode_dirty_sync(inode, false); | |
1997 | ||
1998 | return 0; | |
1999 | } | |
2000 | ||
2001 | static int f2fs_quota_off(struct super_block *sb, int type) | |
2002 | { | |
2003 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
2004 | int err; | |
2005 | ||
2006 | if (!inode || !igrab(inode)) | |
2007 | return dquot_quota_off(sb, type); | |
2008 | ||
cda9cc59 YH |
2009 | err = f2fs_quota_sync(sb, type); |
2010 | if (err) | |
2011 | goto out_put; | |
0abd675e CY |
2012 | |
2013 | err = dquot_quota_off(sb, type); | |
7beb01f7 | 2014 | if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb))) |
0abd675e CY |
2015 | goto out_put; |
2016 | ||
2017 | inode_lock(inode); | |
59c84408 | 2018 | F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL); |
9149a5eb | 2019 | f2fs_set_inode_flags(inode); |
0abd675e CY |
2020 | inode_unlock(inode); |
2021 | f2fs_mark_inode_dirty_sync(inode, false); | |
2022 | out_put: | |
2023 | iput(inode); | |
2024 | return err; | |
2025 | } | |
2026 | ||
4b2414d0 | 2027 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
2028 | { |
2029 | int type; | |
cda9cc59 YH |
2030 | int err; |
2031 | ||
2032 | for (type = 0; type < MAXQUOTAS; type++) { | |
2033 | err = f2fs_quota_off(sb, type); | |
2034 | if (err) { | |
2035 | int ret = dquot_quota_off(sb, type); | |
0abd675e | 2036 | |
cda9cc59 YH |
2037 | f2fs_msg(sb, KERN_ERR, |
2038 | "Fail to turn off disk quota " | |
2039 | "(type: %d, err: %d, ret:%d), Please " | |
2040 | "run fsck to fix it.", type, err, ret); | |
af033b2a | 2041 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
cda9cc59 YH |
2042 | } |
2043 | } | |
0e0667b6 JK |
2044 | /* |
2045 | * In case of checkpoint=disable, we must flush quota blocks. | |
2046 | * This can cause NULL exception for node_inode in end_io, since | |
2047 | * put_super already dropped it. | |
2048 | */ | |
2049 | sync_filesystem(sb); | |
0abd675e CY |
2050 | } |
2051 | ||
26b5a079 SY |
2052 | static void f2fs_truncate_quota_inode_pages(struct super_block *sb) |
2053 | { | |
2054 | struct quota_info *dqopt = sb_dqopt(sb); | |
2055 | int type; | |
2056 | ||
2057 | for (type = 0; type < MAXQUOTAS; type++) { | |
2058 | if (!dqopt->files[type]) | |
2059 | continue; | |
2060 | f2fs_inode_synced(dqopt->files[type]); | |
2061 | } | |
2062 | } | |
2063 | ||
af033b2a CY |
2064 | static int f2fs_dquot_commit(struct dquot *dquot) |
2065 | { | |
2066 | int ret; | |
2067 | ||
2068 | ret = dquot_commit(dquot); | |
2069 | if (ret < 0) | |
2070 | set_sbi_flag(F2FS_SB(dquot->dq_sb), SBI_QUOTA_NEED_REPAIR); | |
2071 | return ret; | |
2072 | } | |
2073 | ||
2074 | static int f2fs_dquot_acquire(struct dquot *dquot) | |
2075 | { | |
2076 | int ret; | |
2077 | ||
2078 | ret = dquot_acquire(dquot); | |
2079 | if (ret < 0) | |
2080 | set_sbi_flag(F2FS_SB(dquot->dq_sb), SBI_QUOTA_NEED_REPAIR); | |
2081 | ||
2082 | return ret; | |
2083 | } | |
2084 | ||
2085 | static int f2fs_dquot_release(struct dquot *dquot) | |
2086 | { | |
2087 | int ret; | |
2088 | ||
2089 | ret = dquot_release(dquot); | |
2090 | if (ret < 0) | |
2091 | set_sbi_flag(F2FS_SB(dquot->dq_sb), SBI_QUOTA_NEED_REPAIR); | |
2092 | return ret; | |
2093 | } | |
2094 | ||
2095 | static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot) | |
2096 | { | |
2097 | struct super_block *sb = dquot->dq_sb; | |
2098 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
2099 | int ret; | |
2100 | ||
2101 | ret = dquot_mark_dquot_dirty(dquot); | |
2102 | ||
2103 | /* if we are using journalled quota */ | |
2104 | if (is_journalled_quota(sbi)) | |
2105 | set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); | |
2106 | ||
2107 | return ret; | |
2108 | } | |
2109 | ||
2110 | static int f2fs_dquot_commit_info(struct super_block *sb, int type) | |
2111 | { | |
2112 | int ret; | |
2113 | ||
2114 | ret = dquot_commit_info(sb, type); | |
2115 | if (ret < 0) | |
2116 | set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); | |
2117 | return ret; | |
2118 | } | |
26b5a079 | 2119 | |
94b1e10e | 2120 | static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
5c57132e CY |
2121 | { |
2122 | *projid = F2FS_I(inode)->i_projid; | |
2123 | return 0; | |
2124 | } | |
2125 | ||
0abd675e CY |
2126 | static const struct dquot_operations f2fs_quota_operations = { |
2127 | .get_reserved_space = f2fs_get_reserved_space, | |
af033b2a CY |
2128 | .write_dquot = f2fs_dquot_commit, |
2129 | .acquire_dquot = f2fs_dquot_acquire, | |
2130 | .release_dquot = f2fs_dquot_release, | |
2131 | .mark_dirty = f2fs_dquot_mark_dquot_dirty, | |
2132 | .write_info = f2fs_dquot_commit_info, | |
0abd675e CY |
2133 | .alloc_dquot = dquot_alloc, |
2134 | .destroy_dquot = dquot_destroy, | |
5c57132e | 2135 | .get_projid = f2fs_get_projid, |
0abd675e CY |
2136 | .get_next_id = dquot_get_next_id, |
2137 | }; | |
2138 | ||
2139 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
2140 | .quota_on = f2fs_quota_on, | |
2141 | .quota_off = f2fs_quota_off, | |
2142 | .quota_sync = f2fs_quota_sync, | |
2143 | .get_state = dquot_get_state, | |
2144 | .set_info = dquot_set_dqinfo, | |
2145 | .get_dqblk = dquot_get_dqblk, | |
2146 | .set_dqblk = dquot_set_dqblk, | |
2147 | .get_nextdqblk = dquot_get_next_dqblk, | |
2148 | }; | |
2149 | #else | |
af033b2a CY |
2150 | int f2fs_quota_sync(struct super_block *sb, int type) |
2151 | { | |
2152 | return 0; | |
2153 | } | |
2154 | ||
4b2414d0 | 2155 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
2156 | { |
2157 | } | |
2158 | #endif | |
2159 | ||
f62fc9f9 | 2160 | static const struct super_operations f2fs_sops = { |
aff063e2 | 2161 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 2162 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
2163 | .destroy_inode = f2fs_destroy_inode, |
2164 | .write_inode = f2fs_write_inode, | |
b3783873 | 2165 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 2166 | .show_options = f2fs_show_options, |
0abd675e CY |
2167 | #ifdef CONFIG_QUOTA |
2168 | .quota_read = f2fs_quota_read, | |
2169 | .quota_write = f2fs_quota_write, | |
2170 | .get_dquots = f2fs_get_dquots, | |
2171 | #endif | |
aff063e2 JK |
2172 | .evict_inode = f2fs_evict_inode, |
2173 | .put_super = f2fs_put_super, | |
2174 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
2175 | .freeze_fs = f2fs_freeze, |
2176 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 2177 | .statfs = f2fs_statfs, |
696c018c | 2178 | .remount_fs = f2fs_remount, |
aff063e2 JK |
2179 | }; |
2180 | ||
0b81d077 JK |
2181 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
2182 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
2183 | { | |
2184 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
2185 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
2186 | ctx, len, NULL); | |
2187 | } | |
2188 | ||
2189 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
2190 | void *fs_data) | |
2191 | { | |
b7c409de SY |
2192 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2193 | ||
2194 | /* | |
2195 | * Encrypting the root directory is not allowed because fsck | |
2196 | * expects lost+found directory to exist and remain unencrypted | |
2197 | * if LOST_FOUND feature is enabled. | |
2198 | * | |
2199 | */ | |
7beb01f7 | 2200 | if (f2fs_sb_has_lost_found(sbi) && |
b7c409de SY |
2201 | inode->i_ino == F2FS_ROOT_INO(sbi)) |
2202 | return -EPERM; | |
2203 | ||
0b81d077 JK |
2204 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, |
2205 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
2206 | ctx, len, fs_data, XATTR_CREATE); | |
2207 | } | |
2208 | ||
ff62af20 SY |
2209 | static bool f2fs_dummy_context(struct inode *inode) |
2210 | { | |
2211 | return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode)); | |
2212 | } | |
2213 | ||
6f69f0ed | 2214 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 2215 | .key_prefix = "f2fs:", |
0b81d077 JK |
2216 | .get_context = f2fs_get_context, |
2217 | .set_context = f2fs_set_context, | |
ff62af20 | 2218 | .dummy_context = f2fs_dummy_context, |
0b81d077 | 2219 | .empty_dir = f2fs_empty_dir, |
e12ee683 | 2220 | .max_namelen = F2FS_NAME_LEN, |
0b81d077 | 2221 | }; |
0b81d077 JK |
2222 | #endif |
2223 | ||
aff063e2 JK |
2224 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
2225 | u64 ino, u32 generation) | |
2226 | { | |
2227 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
2228 | struct inode *inode; | |
2229 | ||
4d57b86d | 2230 | if (f2fs_check_nid_range(sbi, ino)) |
910bb12d | 2231 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
2232 | |
2233 | /* | |
2234 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
2235 | * However f2fs_iget currently does appropriate checks to handle stale | |
2236 | * inodes so everything is OK. | |
2237 | */ | |
2238 | inode = f2fs_iget(sb, ino); | |
2239 | if (IS_ERR(inode)) | |
2240 | return ERR_CAST(inode); | |
6bacf52f | 2241 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
2242 | /* we didn't find the right inode.. */ |
2243 | iput(inode); | |
2244 | return ERR_PTR(-ESTALE); | |
2245 | } | |
2246 | return inode; | |
2247 | } | |
2248 | ||
2249 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
2250 | int fh_len, int fh_type) | |
2251 | { | |
2252 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
2253 | f2fs_nfs_get_inode); | |
2254 | } | |
2255 | ||
2256 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
2257 | int fh_len, int fh_type) | |
2258 | { | |
2259 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
2260 | f2fs_nfs_get_inode); | |
2261 | } | |
2262 | ||
2263 | static const struct export_operations f2fs_export_ops = { | |
2264 | .fh_to_dentry = f2fs_fh_to_dentry, | |
2265 | .fh_to_parent = f2fs_fh_to_parent, | |
2266 | .get_parent = f2fs_get_parent, | |
2267 | }; | |
2268 | ||
e0afc4d6 | 2269 | static loff_t max_file_blocks(void) |
aff063e2 | 2270 | { |
7a2af766 | 2271 | loff_t result = 0; |
aff063e2 JK |
2272 | loff_t leaf_count = ADDRS_PER_BLOCK; |
2273 | ||
7a2af766 CY |
2274 | /* |
2275 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 2276 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
2277 | * space in inode.i_addr, it will be more safe to reassign |
2278 | * result as zero. | |
2279 | */ | |
2280 | ||
aff063e2 JK |
2281 | /* two direct node blocks */ |
2282 | result += (leaf_count * 2); | |
2283 | ||
2284 | /* two indirect node blocks */ | |
2285 | leaf_count *= NIDS_PER_BLOCK; | |
2286 | result += (leaf_count * 2); | |
2287 | ||
2288 | /* one double indirect node block */ | |
2289 | leaf_count *= NIDS_PER_BLOCK; | |
2290 | result += leaf_count; | |
2291 | ||
aff063e2 JK |
2292 | return result; |
2293 | } | |
2294 | ||
fd694733 JK |
2295 | static int __f2fs_commit_super(struct buffer_head *bh, |
2296 | struct f2fs_super_block *super) | |
2297 | { | |
2298 | lock_buffer(bh); | |
2299 | if (super) | |
2300 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
fd694733 JK |
2301 | set_buffer_dirty(bh); |
2302 | unlock_buffer(bh); | |
2303 | ||
2304 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 2305 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
2306 | } |
2307 | ||
df728b0f | 2308 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 2309 | struct buffer_head *bh) |
9a59b62f | 2310 | { |
fd694733 JK |
2311 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
2312 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 2313 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
2314 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
2315 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
2316 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
2317 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
2318 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
2319 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
2320 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
2321 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
2322 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
2323 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
2324 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
2325 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
2326 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
2327 | u64 main_end_blkaddr = main_blkaddr + |
2328 | (segment_count_main << log_blocks_per_seg); | |
2329 | u64 seg_end_blkaddr = segment0_blkaddr + | |
2330 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
2331 | |
2332 | if (segment0_blkaddr != cp_blkaddr) { | |
2333 | f2fs_msg(sb, KERN_INFO, | |
2334 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
2335 | segment0_blkaddr, cp_blkaddr); | |
2336 | return true; | |
2337 | } | |
2338 | ||
2339 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
2340 | sit_blkaddr) { | |
2341 | f2fs_msg(sb, KERN_INFO, | |
2342 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
2343 | cp_blkaddr, sit_blkaddr, | |
2344 | segment_count_ckpt << log_blocks_per_seg); | |
2345 | return true; | |
2346 | } | |
2347 | ||
2348 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
2349 | nat_blkaddr) { | |
2350 | f2fs_msg(sb, KERN_INFO, | |
2351 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
2352 | sit_blkaddr, nat_blkaddr, | |
2353 | segment_count_sit << log_blocks_per_seg); | |
2354 | return true; | |
2355 | } | |
2356 | ||
2357 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
2358 | ssa_blkaddr) { | |
2359 | f2fs_msg(sb, KERN_INFO, | |
2360 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
2361 | nat_blkaddr, ssa_blkaddr, | |
2362 | segment_count_nat << log_blocks_per_seg); | |
2363 | return true; | |
2364 | } | |
2365 | ||
2366 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
2367 | main_blkaddr) { | |
2368 | f2fs_msg(sb, KERN_INFO, | |
2369 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
2370 | ssa_blkaddr, main_blkaddr, | |
2371 | segment_count_ssa << log_blocks_per_seg); | |
2372 | return true; | |
2373 | } | |
2374 | ||
fd694733 | 2375 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 2376 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 2377 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 2378 | main_blkaddr, |
fd694733 JK |
2379 | segment0_blkaddr + |
2380 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
2381 | segment_count_main << log_blocks_per_seg); |
2382 | return true; | |
fd694733 JK |
2383 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
2384 | int err = 0; | |
2385 | char *res; | |
2386 | ||
2387 | /* fix in-memory information all the time */ | |
2388 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
2389 | segment0_blkaddr) >> log_blocks_per_seg); | |
2390 | ||
2391 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 2392 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
2393 | res = "internally"; |
2394 | } else { | |
2395 | err = __f2fs_commit_super(bh, NULL); | |
2396 | res = err ? "failed" : "done"; | |
2397 | } | |
2398 | f2fs_msg(sb, KERN_INFO, | |
2399 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
2400 | res, main_blkaddr, | |
2401 | segment0_blkaddr + | |
2402 | (segment_count << log_blocks_per_seg), | |
2403 | segment_count_main << log_blocks_per_seg); | |
2404 | if (err) | |
2405 | return true; | |
9a59b62f | 2406 | } |
9a59b62f CY |
2407 | return false; |
2408 | } | |
2409 | ||
df728b0f | 2410 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 2411 | struct buffer_head *bh) |
aff063e2 | 2412 | { |
0cfe75c5 JK |
2413 | block_t segment_count, segs_per_sec, secs_per_zone; |
2414 | block_t total_sections, blocks_per_seg; | |
fd694733 JK |
2415 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
2416 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 2417 | struct super_block *sb = sbi->sb; |
aff063e2 | 2418 | unsigned int blocksize; |
d440c52d JZ |
2419 | size_t crc_offset = 0; |
2420 | __u32 crc = 0; | |
2421 | ||
2422 | /* Check checksum_offset and crc in superblock */ | |
7beb01f7 | 2423 | if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) { |
d440c52d JZ |
2424 | crc_offset = le32_to_cpu(raw_super->checksum_offset); |
2425 | if (crc_offset != | |
2426 | offsetof(struct f2fs_super_block, crc)) { | |
2427 | f2fs_msg(sb, KERN_INFO, | |
2428 | "Invalid SB checksum offset: %zu", | |
2429 | crc_offset); | |
2430 | return 1; | |
2431 | } | |
2432 | crc = le32_to_cpu(raw_super->crc); | |
2433 | if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) { | |
2434 | f2fs_msg(sb, KERN_INFO, | |
2435 | "Invalid SB checksum value: %u", crc); | |
2436 | return 1; | |
2437 | } | |
2438 | } | |
aff063e2 | 2439 | |
a07ef784 NJ |
2440 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
2441 | f2fs_msg(sb, KERN_INFO, | |
2442 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
2443 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 2444 | return 1; |
a07ef784 | 2445 | } |
aff063e2 | 2446 | |
5c9b4692 | 2447 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 2448 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 2449 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 2450 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 2451 | PAGE_SIZE); |
5c9b4692 | 2452 | return 1; |
2453 | } | |
2454 | ||
aff063e2 JK |
2455 | /* Currently, support only 4KB block size */ |
2456 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 2457 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
2458 | f2fs_msg(sb, KERN_INFO, |
2459 | "Invalid blocksize (%u), supports only 4KB\n", | |
2460 | blocksize); | |
aff063e2 | 2461 | return 1; |
a07ef784 | 2462 | } |
5c9b4692 | 2463 | |
9a59b62f CY |
2464 | /* check log blocks per segment */ |
2465 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
2466 | f2fs_msg(sb, KERN_INFO, | |
2467 | "Invalid log blocks per segment (%u)\n", | |
2468 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
2469 | return 1; | |
2470 | } | |
2471 | ||
55cf9cb6 CY |
2472 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
2473 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
2474 | F2FS_MAX_LOG_SECTOR_SIZE || | |
2475 | le32_to_cpu(raw_super->log_sectorsize) < | |
2476 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
2477 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
2478 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2479 | return 1; |
a07ef784 | 2480 | } |
55cf9cb6 CY |
2481 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
2482 | le32_to_cpu(raw_super->log_sectorsize) != | |
2483 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
2484 | f2fs_msg(sb, KERN_INFO, | |
2485 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
2486 | le32_to_cpu(raw_super->log_sectors_per_block), | |
2487 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2488 | return 1; |
a07ef784 | 2489 | } |
9a59b62f | 2490 | |
0cfe75c5 JK |
2491 | segment_count = le32_to_cpu(raw_super->segment_count); |
2492 | segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2493 | secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2494 | total_sections = le32_to_cpu(raw_super->section_count); | |
2495 | ||
2496 | /* blocks_per_seg should be 512, given the above check */ | |
2497 | blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg); | |
2498 | ||
2499 | if (segment_count > F2FS_MAX_SEGMENT || | |
2500 | segment_count < F2FS_MIN_SEGMENTS) { | |
2501 | f2fs_msg(sb, KERN_INFO, | |
2502 | "Invalid segment count (%u)", | |
2503 | segment_count); | |
2504 | return 1; | |
2505 | } | |
2506 | ||
2507 | if (total_sections > segment_count || | |
2508 | total_sections < F2FS_MIN_SEGMENTS || | |
2509 | segs_per_sec > segment_count || !segs_per_sec) { | |
2510 | f2fs_msg(sb, KERN_INFO, | |
2511 | "Invalid segment/section count (%u, %u x %u)", | |
2512 | segment_count, total_sections, segs_per_sec); | |
2513 | return 1; | |
2514 | } | |
2515 | ||
2516 | if ((segment_count / segs_per_sec) < total_sections) { | |
2517 | f2fs_msg(sb, KERN_INFO, | |
2518 | "Small segment_count (%u < %u * %u)", | |
2519 | segment_count, segs_per_sec, total_sections); | |
2520 | return 1; | |
2521 | } | |
2522 | ||
88960068 | 2523 | if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) { |
0cfe75c5 | 2524 | f2fs_msg(sb, KERN_INFO, |
88960068 MB |
2525 | "Wrong segment_count / block_count (%u > %llu)", |
2526 | segment_count, le64_to_cpu(raw_super->block_count)); | |
0cfe75c5 JK |
2527 | return 1; |
2528 | } | |
2529 | ||
42bf546c | 2530 | if (secs_per_zone > total_sections || !secs_per_zone) { |
0cfe75c5 | 2531 | f2fs_msg(sb, KERN_INFO, |
42bf546c | 2532 | "Wrong secs_per_zone / total_sections (%u, %u)", |
0cfe75c5 JK |
2533 | secs_per_zone, total_sections); |
2534 | return 1; | |
2535 | } | |
2536 | if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION || | |
2537 | raw_super->hot_ext_count > F2FS_MAX_EXTENSION || | |
2538 | (le32_to_cpu(raw_super->extension_count) + | |
2539 | raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) { | |
2540 | f2fs_msg(sb, KERN_INFO, | |
2541 | "Corrupted extension count (%u + %u > %u)", | |
2542 | le32_to_cpu(raw_super->extension_count), | |
2543 | raw_super->hot_ext_count, | |
2544 | F2FS_MAX_EXTENSION); | |
2545 | return 1; | |
2546 | } | |
2547 | ||
2548 | if (le32_to_cpu(raw_super->cp_payload) > | |
2549 | (blocks_per_seg - F2FS_CP_PACKS)) { | |
2550 | f2fs_msg(sb, KERN_INFO, | |
2551 | "Insane cp_payload (%u > %u)", | |
2552 | le32_to_cpu(raw_super->cp_payload), | |
2553 | blocks_per_seg - F2FS_CP_PACKS); | |
2554 | return 1; | |
2555 | } | |
2556 | ||
9a59b62f CY |
2557 | /* check reserved ino info */ |
2558 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
2559 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
2560 | le32_to_cpu(raw_super->root_ino) != 3) { | |
2561 | f2fs_msg(sb, KERN_INFO, | |
2562 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
2563 | le32_to_cpu(raw_super->node_ino), | |
2564 | le32_to_cpu(raw_super->meta_ino), | |
2565 | le32_to_cpu(raw_super->root_ino)); | |
2566 | return 1; | |
2567 | } | |
2568 | ||
2569 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ | |
df728b0f | 2570 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
2571 | return 1; |
2572 | ||
aff063e2 JK |
2573 | return 0; |
2574 | } | |
2575 | ||
4d57b86d | 2576 | int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2577 | { |
2578 | unsigned int total, fsmeta; | |
577e3495 JK |
2579 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2580 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2581 | unsigned int ovp_segments, reserved_segments; |
15d3042a | 2582 | unsigned int main_segs, blocks_per_seg; |
c77ec61c CY |
2583 | unsigned int sit_segs, nat_segs; |
2584 | unsigned int sit_bitmap_size, nat_bitmap_size; | |
2585 | unsigned int log_blocks_per_seg; | |
9dc956b2 | 2586 | unsigned int segment_count_main; |
e494c2f9 | 2587 | unsigned int cp_pack_start_sum, cp_payload; |
9dc956b2 | 2588 | block_t user_block_count; |
042be0f8 | 2589 | int i, j; |
aff063e2 JK |
2590 | |
2591 | total = le32_to_cpu(raw_super->segment_count); | |
2592 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
c77ec61c CY |
2593 | sit_segs = le32_to_cpu(raw_super->segment_count_sit); |
2594 | fsmeta += sit_segs; | |
2595 | nat_segs = le32_to_cpu(raw_super->segment_count_nat); | |
2596 | fsmeta += nat_segs; | |
aff063e2 JK |
2597 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); |
2598 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2599 | ||
6bacf52f | 2600 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2601 | return 1; |
577e3495 | 2602 | |
2040fce8 JK |
2603 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2604 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2605 | ||
2606 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2607 | ovp_segments == 0 || reserved_segments == 0)) { | |
2608 | f2fs_msg(sbi->sb, KERN_ERR, | |
2609 | "Wrong layout: check mkfs.f2fs version"); | |
2610 | return 1; | |
2611 | } | |
2612 | ||
9dc956b2 CY |
2613 | user_block_count = le64_to_cpu(ckpt->user_block_count); |
2614 | segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
2615 | log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2616 | if (!user_block_count || user_block_count >= | |
2617 | segment_count_main << log_blocks_per_seg) { | |
2618 | f2fs_msg(sbi->sb, KERN_ERR, | |
2619 | "Wrong user_block_count: %u", user_block_count); | |
2620 | return 1; | |
2621 | } | |
2622 | ||
15d3042a JQ |
2623 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2624 | blocks_per_seg = sbi->blocks_per_seg; | |
2625 | ||
2626 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2627 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2628 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2629 | return 1; | |
042be0f8 CY |
2630 | for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) { |
2631 | if (le32_to_cpu(ckpt->cur_node_segno[i]) == | |
2632 | le32_to_cpu(ckpt->cur_node_segno[j])) { | |
2633 | f2fs_msg(sbi->sb, KERN_ERR, | |
2634 | "Node segment (%u, %u) has the same " | |
2635 | "segno: %u", i, j, | |
2636 | le32_to_cpu(ckpt->cur_node_segno[i])); | |
2637 | return 1; | |
2638 | } | |
2639 | } | |
15d3042a JQ |
2640 | } |
2641 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2642 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2643 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2644 | return 1; | |
042be0f8 CY |
2645 | for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) { |
2646 | if (le32_to_cpu(ckpt->cur_data_segno[i]) == | |
2647 | le32_to_cpu(ckpt->cur_data_segno[j])) { | |
2648 | f2fs_msg(sbi->sb, KERN_ERR, | |
2649 | "Data segment (%u, %u) has the same " | |
2650 | "segno: %u", i, j, | |
2651 | le32_to_cpu(ckpt->cur_data_segno[i])); | |
2652 | return 1; | |
2653 | } | |
2654 | } | |
2655 | } | |
2656 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2657 | for (j = i; j < NR_CURSEG_DATA_TYPE; j++) { | |
2658 | if (le32_to_cpu(ckpt->cur_node_segno[i]) == | |
2659 | le32_to_cpu(ckpt->cur_data_segno[j])) { | |
2660 | f2fs_msg(sbi->sb, KERN_ERR, | |
2661 | "Data segment (%u) and Data segment (%u)" | |
2662 | " has the same segno: %u", i, j, | |
2663 | le32_to_cpu(ckpt->cur_node_segno[i])); | |
2664 | return 1; | |
2665 | } | |
2666 | } | |
15d3042a JQ |
2667 | } |
2668 | ||
c77ec61c CY |
2669 | sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); |
2670 | nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
c77ec61c CY |
2671 | |
2672 | if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 || | |
2673 | nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) { | |
2674 | f2fs_msg(sbi->sb, KERN_ERR, | |
2675 | "Wrong bitmap size: sit: %u, nat:%u", | |
2676 | sit_bitmap_size, nat_bitmap_size); | |
2677 | return 1; | |
2678 | } | |
e494c2f9 CY |
2679 | |
2680 | cp_pack_start_sum = __start_sum_addr(sbi); | |
2681 | cp_payload = __cp_payload(sbi); | |
2682 | if (cp_pack_start_sum < cp_payload + 1 || | |
2683 | cp_pack_start_sum > blocks_per_seg - 1 - | |
2684 | NR_CURSEG_TYPE) { | |
2685 | f2fs_msg(sbi->sb, KERN_ERR, | |
2686 | "Wrong cp_pack_start_sum: %u", | |
2687 | cp_pack_start_sum); | |
2688 | return 1; | |
2689 | } | |
c77ec61c | 2690 | |
1e968fdf | 2691 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2692 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2693 | return 1; | |
2694 | } | |
aff063e2 JK |
2695 | return 0; |
2696 | } | |
2697 | ||
2698 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2699 | { | |
2700 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
089842de | 2701 | int i; |
aff063e2 JK |
2702 | |
2703 | sbi->log_sectors_per_block = | |
2704 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2705 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2706 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2707 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2708 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2709 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2710 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2711 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2712 | sbi->total_node_count = | |
2713 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2714 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2715 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2716 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2717 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2718 | sbi->cur_victim_sec = NULL_SECNO; |
e3080b01 CY |
2719 | sbi->next_victim_seg[BG_GC] = NULL_SEGNO; |
2720 | sbi->next_victim_seg[FG_GC] = NULL_SEGNO; | |
b1c57c1c | 2721 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
e3080b01 | 2722 | sbi->migration_granularity = sbi->segs_per_sec; |
aff063e2 | 2723 | |
ab9fa662 | 2724 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2725 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2726 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
a7d10cf3 ST |
2727 | sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL; |
2728 | sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL; | |
4354994f | 2729 | sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL; |
03f2c02d JK |
2730 | sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] = |
2731 | DEF_UMOUNT_DISCARD_TIMEOUT; | |
caf0047e | 2732 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2733 | |
35782b23 JK |
2734 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2735 | atomic_set(&sbi->nr_pages[i], 0); | |
2736 | ||
c29fd0c0 CY |
2737 | for (i = 0; i < META; i++) |
2738 | atomic_set(&sbi->wb_sync_req[i], 0); | |
687de7f1 | 2739 | |
2658e50d JK |
2740 | INIT_LIST_HEAD(&sbi->s_list); |
2741 | mutex_init(&sbi->umount_mutex); | |
107a805d | 2742 | init_rwsem(&sbi->io_order_lock); |
aaec2b1d | 2743 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2744 | |
2745 | sbi->dirty_device = 0; | |
2746 | spin_lock_init(&sbi->dev_lock); | |
d0d3f1b3 | 2747 | |
846ae671 | 2748 | init_rwsem(&sbi->sb_lock); |
aff063e2 JK |
2749 | } |
2750 | ||
523be8a6 JK |
2751 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2752 | { | |
35782b23 | 2753 | int err; |
41382ec4 | 2754 | |
513c5f37 JK |
2755 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2756 | if (err) | |
2757 | return err; | |
2758 | ||
4a70e255 | 2759 | err = percpu_counter_init(&sbi->total_valid_inode_count, 0, |
41382ec4 | 2760 | GFP_KERNEL); |
4a70e255 CY |
2761 | if (err) |
2762 | percpu_counter_destroy(&sbi->alloc_valid_block_count); | |
2763 | ||
2764 | return err; | |
523be8a6 JK |
2765 | } |
2766 | ||
178053e2 | 2767 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2768 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2769 | { |
3c62be17 | 2770 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2771 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2772 | sector_t sector = 0; | |
2773 | struct blk_zone *zones; | |
2774 | unsigned int i, nr_zones; | |
2775 | unsigned int n = 0; | |
2776 | int err = -EIO; | |
2777 | ||
7beb01f7 | 2778 | if (!f2fs_sb_has_blkzoned(sbi)) |
178053e2 DLM |
2779 | return 0; |
2780 | ||
3c62be17 | 2781 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2782 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2783 | return -EINVAL; |
f99e8648 | 2784 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2785 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2786 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2787 | return -EINVAL; | |
178053e2 | 2788 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2789 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2790 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2791 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2792 | FDEV(devi).nr_blkz++; |
178053e2 | 2793 | |
4e6aad29 CY |
2794 | FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz, |
2795 | GFP_KERNEL); | |
3c62be17 | 2796 | if (!FDEV(devi).blkz_type) |
178053e2 DLM |
2797 | return -ENOMEM; |
2798 | ||
2799 | #define F2FS_REPORT_NR_ZONES 4096 | |
2800 | ||
026f0507 KC |
2801 | zones = f2fs_kzalloc(sbi, |
2802 | array_size(F2FS_REPORT_NR_ZONES, | |
2803 | sizeof(struct blk_zone)), | |
2804 | GFP_KERNEL); | |
178053e2 DLM |
2805 | if (!zones) |
2806 | return -ENOMEM; | |
2807 | ||
2808 | /* Get block zones type */ | |
2809 | while (zones && sector < nr_sectors) { | |
2810 | ||
2811 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2812 | err = blkdev_report_zones(bdev, sector, | |
2813 | zones, &nr_zones, | |
2814 | GFP_KERNEL); | |
2815 | if (err) | |
2816 | break; | |
2817 | if (!nr_zones) { | |
2818 | err = -EIO; | |
2819 | break; | |
2820 | } | |
2821 | ||
2822 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2823 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2824 | sector += zones[i].len; |
2825 | n++; | |
2826 | } | |
2827 | } | |
2828 | ||
5222595d | 2829 | kvfree(zones); |
178053e2 DLM |
2830 | |
2831 | return err; | |
2832 | } | |
2833 | #endif | |
2834 | ||
9076a75f GZ |
2835 | /* |
2836 | * Read f2fs raw super block. | |
2b39e907 SL |
2837 | * Because we have two copies of super block, so read both of them |
2838 | * to get the first valid one. If any one of them is broken, we pass | |
2839 | * them recovery flag back to the caller. | |
9076a75f | 2840 | */ |
df728b0f | 2841 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2842 | struct f2fs_super_block **raw_super, |
e8240f65 | 2843 | int *valid_super_block, int *recovery) |
14d7e9de | 2844 | { |
df728b0f | 2845 | struct super_block *sb = sbi->sb; |
2b39e907 | 2846 | int block; |
e8240f65 | 2847 | struct buffer_head *bh; |
fd694733 | 2848 | struct f2fs_super_block *super; |
da554e48 | 2849 | int err = 0; |
14d7e9de | 2850 | |
b39f0de2 YH |
2851 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2852 | if (!super) | |
2853 | return -ENOMEM; | |
2b39e907 SL |
2854 | |
2855 | for (block = 0; block < 2; block++) { | |
2856 | bh = sb_bread(sb, block); | |
2857 | if (!bh) { | |
2858 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2859 | block + 1); |
2b39e907 SL |
2860 | err = -EIO; |
2861 | continue; | |
2862 | } | |
14d7e9de | 2863 | |
2b39e907 | 2864 | /* sanity checking of raw super */ |
df728b0f | 2865 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2866 | f2fs_msg(sb, KERN_ERR, |
2867 | "Can't find valid F2FS filesystem in %dth superblock", | |
2868 | block + 1); | |
2869 | err = -EINVAL; | |
2870 | brelse(bh); | |
2871 | continue; | |
2872 | } | |
14d7e9de | 2873 | |
2b39e907 | 2874 | if (!*raw_super) { |
fd694733 JK |
2875 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2876 | sizeof(*super)); | |
2b39e907 SL |
2877 | *valid_super_block = block; |
2878 | *raw_super = super; | |
2879 | } | |
2880 | brelse(bh); | |
da554e48 | 2881 | } |
2882 | ||
2b39e907 SL |
2883 | /* Fail to read any one of the superblocks*/ |
2884 | if (err < 0) | |
2885 | *recovery = 1; | |
da554e48 | 2886 | |
da554e48 | 2887 | /* No valid superblock */ |
2b39e907 | 2888 | if (!*raw_super) |
5222595d | 2889 | kvfree(super); |
2b39e907 SL |
2890 | else |
2891 | err = 0; | |
da554e48 | 2892 | |
2b39e907 | 2893 | return err; |
14d7e9de | 2894 | } |
2895 | ||
fd694733 | 2896 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2897 | { |
5d909cdb | 2898 | struct buffer_head *bh; |
d440c52d | 2899 | __u32 crc = 0; |
26d815ad JK |
2900 | int err; |
2901 | ||
df728b0f JK |
2902 | if ((recover && f2fs_readonly(sbi->sb)) || |
2903 | bdev_read_only(sbi->sb->s_bdev)) { | |
2904 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2905 | return -EROFS; |
df728b0f | 2906 | } |
f2353d7b | 2907 | |
d440c52d | 2908 | /* we should update superblock crc here */ |
7beb01f7 | 2909 | if (!recover && f2fs_sb_has_sb_chksum(sbi)) { |
d440c52d JZ |
2910 | crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi), |
2911 | offsetof(struct f2fs_super_block, crc)); | |
2912 | F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc); | |
2913 | } | |
2914 | ||
fd694733 | 2915 | /* write back-up superblock first */ |
0964fc1a | 2916 | bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1); |
5d909cdb JK |
2917 | if (!bh) |
2918 | return -EIO; | |
fd694733 | 2919 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2920 | brelse(bh); |
c5bda1c8 CY |
2921 | |
2922 | /* if we are in recovery path, skip writing valid superblock */ | |
2923 | if (recover || err) | |
5d909cdb | 2924 | return err; |
26d815ad JK |
2925 | |
2926 | /* write current valid superblock */ | |
0964fc1a | 2927 | bh = sb_bread(sbi->sb, sbi->valid_super_block); |
fd694733 JK |
2928 | if (!bh) |
2929 | return -EIO; | |
2930 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2931 | brelse(bh); | |
2932 | return err; | |
26d815ad JK |
2933 | } |
2934 | ||
3c62be17 JK |
2935 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2936 | { | |
2937 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2938 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2939 | int i; |
2940 | ||
7bb3a371 MS |
2941 | /* Initialize single device information */ |
2942 | if (!RDEV(0).path[0]) { | |
2943 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2944 | return 0; |
7bb3a371 MS |
2945 | max_devices = 1; |
2946 | } | |
3c62be17 | 2947 | |
7bb3a371 MS |
2948 | /* |
2949 | * Initialize multiple devices information, or single | |
2950 | * zoned block device information. | |
2951 | */ | |
026f0507 KC |
2952 | sbi->devs = f2fs_kzalloc(sbi, |
2953 | array_size(max_devices, | |
2954 | sizeof(struct f2fs_dev_info)), | |
2955 | GFP_KERNEL); | |
7bb3a371 MS |
2956 | if (!sbi->devs) |
2957 | return -ENOMEM; | |
3c62be17 | 2958 | |
7bb3a371 | 2959 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2960 | |
7bb3a371 MS |
2961 | if (i > 0 && !RDEV(i).path[0]) |
2962 | break; | |
2963 | ||
2964 | if (max_devices == 1) { | |
2965 | /* Single zoned block device mount */ | |
2966 | FDEV(0).bdev = | |
2967 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2968 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2969 | } else { |
2970 | /* Multi-device mount */ | |
2971 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2972 | FDEV(i).total_segments = | |
2973 | le32_to_cpu(RDEV(i).total_segments); | |
2974 | if (i == 0) { | |
2975 | FDEV(i).start_blk = 0; | |
2976 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2977 | (FDEV(i).total_segments << | |
2978 | sbi->log_blocks_per_seg) - 1 + | |
2979 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2980 | } else { | |
2981 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2982 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2983 | (FDEV(i).total_segments << | |
2984 | sbi->log_blocks_per_seg) - 1; | |
2985 | } | |
2986 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2987 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2988 | } |
3c62be17 JK |
2989 | if (IS_ERR(FDEV(i).bdev)) |
2990 | return PTR_ERR(FDEV(i).bdev); | |
2991 | ||
2992 | /* to release errored devices */ | |
2993 | sbi->s_ndevs = i + 1; | |
2994 | ||
2995 | #ifdef CONFIG_BLK_DEV_ZONED | |
2996 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
7beb01f7 | 2997 | !f2fs_sb_has_blkzoned(sbi)) { |
3c62be17 JK |
2998 | f2fs_msg(sbi->sb, KERN_ERR, |
2999 | "Zoned block device feature not enabled\n"); | |
3000 | return -EINVAL; | |
3001 | } | |
3002 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
3003 | if (init_blkz_info(sbi, i)) { | |
3004 | f2fs_msg(sbi->sb, KERN_ERR, | |
3005 | "Failed to initialize F2FS blkzone information"); | |
3006 | return -EINVAL; | |
3007 | } | |
7bb3a371 MS |
3008 | if (max_devices == 1) |
3009 | break; | |
3c62be17 JK |
3010 | f2fs_msg(sbi->sb, KERN_INFO, |
3011 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
3012 | i, FDEV(i).path, | |
3013 | FDEV(i).total_segments, | |
3014 | FDEV(i).start_blk, FDEV(i).end_blk, | |
3015 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
3016 | "Host-aware" : "Host-managed"); | |
3017 | continue; | |
3018 | } | |
3019 | #endif | |
3020 | f2fs_msg(sbi->sb, KERN_INFO, | |
3021 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
3022 | i, FDEV(i).path, | |
3023 | FDEV(i).total_segments, | |
3024 | FDEV(i).start_blk, FDEV(i).end_blk); | |
3025 | } | |
0a595eba JK |
3026 | f2fs_msg(sbi->sb, KERN_INFO, |
3027 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
3028 | return 0; |
3029 | } | |
3030 | ||
84b89e5d JK |
3031 | static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) |
3032 | { | |
3033 | struct f2fs_sm_info *sm_i = SM_I(sbi); | |
3034 | ||
3035 | /* adjust parameters according to the volume size */ | |
3036 | if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) { | |
63189b78 | 3037 | F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; |
84b89e5d JK |
3038 | sm_i->dcc_info->discard_granularity = 1; |
3039 | sm_i->ipu_policy = 1 << F2FS_IPU_FORCE; | |
3040 | } | |
4cac90d5 CY |
3041 | |
3042 | sbi->readdir_ra = 1; | |
84b89e5d JK |
3043 | } |
3044 | ||
aff063e2 JK |
3045 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
3046 | { | |
3047 | struct f2fs_sb_info *sbi; | |
da554e48 | 3048 | struct f2fs_super_block *raw_super; |
aff063e2 | 3049 | struct inode *root; |
99e3e858 | 3050 | int err; |
2adc3505 | 3051 | bool retry = true, need_fsck = false; |
dabc4a5c | 3052 | char *options = NULL; |
e8240f65 | 3053 | int recovery, i, valid_super_block; |
8f1dbbbb | 3054 | struct curseg_info *seg_i; |
aff063e2 | 3055 | |
ed2e621a | 3056 | try_onemore: |
da554e48 | 3057 | err = -EINVAL; |
3058 | raw_super = NULL; | |
e8240f65 | 3059 | valid_super_block = -1; |
da554e48 | 3060 | recovery = 0; |
3061 | ||
aff063e2 JK |
3062 | /* allocate memory for f2fs-specific super block info */ |
3063 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
3064 | if (!sbi) | |
3065 | return -ENOMEM; | |
3066 | ||
df728b0f JK |
3067 | sbi->sb = sb; |
3068 | ||
43b6573b KM |
3069 | /* Load the checksum driver */ |
3070 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
3071 | if (IS_ERR(sbi->s_chksum_driver)) { | |
3072 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
3073 | err = PTR_ERR(sbi->s_chksum_driver); | |
3074 | sbi->s_chksum_driver = NULL; | |
3075 | goto free_sbi; | |
3076 | } | |
3077 | ||
ff9234ad | 3078 | /* set a block size */ |
6bacf52f | 3079 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 3080 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 3081 | goto free_sbi; |
a07ef784 | 3082 | } |
aff063e2 | 3083 | |
df728b0f | 3084 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 3085 | &recovery); |
9076a75f GZ |
3086 | if (err) |
3087 | goto free_sbi; | |
3088 | ||
5fb08372 | 3089 | sb->s_fs_info = sbi; |
52763a4b JK |
3090 | sbi->raw_super = raw_super; |
3091 | ||
704956ec | 3092 | /* precompute checksum seed for metadata */ |
7beb01f7 | 3093 | if (f2fs_sb_has_inode_chksum(sbi)) |
704956ec CY |
3094 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, |
3095 | sizeof(raw_super->uuid)); | |
3096 | ||
d1b959c8 DLM |
3097 | /* |
3098 | * The BLKZONED feature indicates that the drive was formatted with | |
3099 | * zone alignment optimization. This is optional for host-aware | |
3100 | * devices, but mandatory for host-managed zoned block devices. | |
3101 | */ | |
3102 | #ifndef CONFIG_BLK_DEV_ZONED | |
7beb01f7 | 3103 | if (f2fs_sb_has_blkzoned(sbi)) { |
d1b959c8 DLM |
3104 | f2fs_msg(sb, KERN_ERR, |
3105 | "Zoned block device support is not enabled\n"); | |
1727f317 | 3106 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
3107 | goto free_sb_buf; |
3108 | } | |
d1b959c8 | 3109 | #endif |
498c5e9f | 3110 | default_options(sbi); |
aff063e2 | 3111 | /* parse mount options */ |
dabc4a5c JK |
3112 | options = kstrdup((const char *)data, GFP_KERNEL); |
3113 | if (data && !options) { | |
3114 | err = -ENOMEM; | |
aff063e2 | 3115 | goto free_sb_buf; |
dabc4a5c JK |
3116 | } |
3117 | ||
3118 | err = parse_options(sb, options); | |
3119 | if (err) | |
3120 | goto free_options; | |
aff063e2 | 3121 | |
e0afc4d6 CY |
3122 | sbi->max_file_blocks = max_file_blocks(); |
3123 | sb->s_maxbytes = sbi->max_file_blocks << | |
3124 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
3125 | sb->s_max_links = F2FS_LINK_MAX; |
3126 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
3127 | ||
0abd675e CY |
3128 | #ifdef CONFIG_QUOTA |
3129 | sb->dq_op = &f2fs_quota_operations; | |
7beb01f7 | 3130 | if (f2fs_sb_has_quota_ino(sbi)) |
ea676733 JK |
3131 | sb->s_qcop = &dquot_quotactl_sysfile_ops; |
3132 | else | |
3133 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 3134 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
292c196a | 3135 | |
7beb01f7 | 3136 | if (f2fs_sb_has_quota_ino(sbi)) { |
292c196a CY |
3137 | for (i = 0; i < MAXQUOTAS; i++) { |
3138 | if (f2fs_qf_ino(sbi->sb, i)) | |
3139 | sbi->nquota_files++; | |
3140 | } | |
3141 | } | |
0abd675e CY |
3142 | #endif |
3143 | ||
aff063e2 | 3144 | sb->s_op = &f2fs_sops; |
ffcc4182 | 3145 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 3146 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 3147 | #endif |
aff063e2 JK |
3148 | sb->s_xattr = f2fs_xattr_handlers; |
3149 | sb->s_export_op = &f2fs_export_ops; | |
3150 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 3151 | sb->s_time_gran = 1; |
1751e8a6 LT |
3152 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
3153 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 3154 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
578c6478 | 3155 | sb->s_iflags |= SB_I_CGROUPWB; |
aff063e2 JK |
3156 | |
3157 | /* init f2fs-specific super block info */ | |
e8240f65 | 3158 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 3159 | mutex_init(&sbi->gc_mutex); |
853137ce | 3160 | mutex_init(&sbi->writepages); |
aff063e2 | 3161 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 3162 | init_rwsem(&sbi->node_write); |
59c9081b | 3163 | init_rwsem(&sbi->node_change); |
315df839 JK |
3164 | |
3165 | /* disallow all the data/node/meta page writes */ | |
3166 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 3167 | spin_lock_init(&sbi->stat_lock); |
971767ca | 3168 | |
b0af6d49 CY |
3169 | /* init iostat info */ |
3170 | spin_lock_init(&sbi->iostat_lock); | |
3171 | sbi->iostat_enable = false; | |
3172 | ||
458e6197 | 3173 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
3174 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
3175 | int j; | |
3176 | ||
c8606593 KC |
3177 | sbi->write_io[i] = |
3178 | f2fs_kmalloc(sbi, | |
3179 | array_size(n, | |
3180 | sizeof(struct f2fs_bio_info)), | |
3181 | GFP_KERNEL); | |
b63def91 CJ |
3182 | if (!sbi->write_io[i]) { |
3183 | err = -ENOMEM; | |
0b2103e8 | 3184 | goto free_bio_info; |
b63def91 | 3185 | } |
a912b54d JK |
3186 | |
3187 | for (j = HOT; j < n; j++) { | |
3188 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
3189 | sbi->write_io[i][j].sbi = sbi; | |
3190 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
3191 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
3192 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 3193 | } |
458e6197 | 3194 | } |
971767ca | 3195 | |
b873b798 | 3196 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 3197 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
3198 | init_sb_info(sbi); |
3199 | ||
523be8a6 JK |
3200 | err = init_percpu_info(sbi); |
3201 | if (err) | |
d7997e63 | 3202 | goto free_bio_info; |
523be8a6 | 3203 | |
0a595eba JK |
3204 | if (F2FS_IO_SIZE(sbi) > 1) { |
3205 | sbi->write_io_dummy = | |
a3ebfe4f | 3206 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
3207 | if (!sbi->write_io_dummy) { |
3208 | err = -ENOMEM; | |
d7997e63 | 3209 | goto free_percpu; |
1727f317 | 3210 | } |
0a595eba JK |
3211 | } |
3212 | ||
aff063e2 JK |
3213 | /* get an inode for meta space */ |
3214 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
3215 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 3216 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 3217 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 3218 | goto free_io_dummy; |
aff063e2 JK |
3219 | } |
3220 | ||
4d57b86d | 3221 | err = f2fs_get_valid_checkpoint(sbi); |
a07ef784 NJ |
3222 | if (err) { |
3223 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 3224 | goto free_meta_inode; |
a07ef784 | 3225 | } |
aff063e2 | 3226 | |
af033b2a CY |
3227 | if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG)) |
3228 | set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); | |
db610a64 JK |
3229 | if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) { |
3230 | set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); | |
3231 | sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL; | |
3232 | } | |
af033b2a | 3233 | |
3c62be17 JK |
3234 | /* Initialize device list */ |
3235 | err = f2fs_scan_devices(sbi); | |
3236 | if (err) { | |
3237 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
3238 | goto free_devices; | |
3239 | } | |
3240 | ||
aff063e2 JK |
3241 | sbi->total_valid_node_count = |
3242 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
3243 | percpu_counter_set(&sbi->total_valid_inode_count, |
3244 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
3245 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
3246 | sbi->total_valid_block_count = | |
3247 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
3248 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 3249 | sbi->reserved_blocks = 0; |
80d42145 | 3250 | sbi->current_reserved_blocks = 0; |
7e65be49 | 3251 | limit_reserve_root(sbi); |
41382ec4 | 3252 | |
c227f912 CY |
3253 | for (i = 0; i < NR_INODE_TYPE; i++) { |
3254 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
3255 | spin_lock_init(&sbi->inode_lock[i]); | |
3256 | } | |
aff063e2 | 3257 | |
4d57b86d | 3258 | f2fs_init_extent_cache_info(sbi); |
1dcc336b | 3259 | |
4d57b86d | 3260 | f2fs_init_ino_entry_info(sbi); |
aff063e2 | 3261 | |
50fa53ec CY |
3262 | f2fs_init_fsync_node_info(sbi); |
3263 | ||
aff063e2 | 3264 | /* setup f2fs internal modules */ |
4d57b86d | 3265 | err = f2fs_build_segment_manager(sbi); |
a07ef784 NJ |
3266 | if (err) { |
3267 | f2fs_msg(sb, KERN_ERR, | |
3268 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 3269 | goto free_sm; |
a07ef784 | 3270 | } |
4d57b86d | 3271 | err = f2fs_build_node_manager(sbi); |
a07ef784 NJ |
3272 | if (err) { |
3273 | f2fs_msg(sb, KERN_ERR, | |
3274 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 3275 | goto free_nm; |
a07ef784 | 3276 | } |
aff063e2 | 3277 | |
8f1dbbbb SL |
3278 | /* For write statistics */ |
3279 | if (sb->s_bdev->bd_part) | |
3280 | sbi->sectors_written_start = | |
dbae2c55 MC |
3281 | (u64)part_stat_read(sb->s_bdev->bd_part, |
3282 | sectors[STAT_WRITE]); | |
8f1dbbbb SL |
3283 | |
3284 | /* Read accumulated write IO statistics if exists */ | |
3285 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
3286 | if (__exist_node_summaries(sbi)) | |
3287 | sbi->kbytes_written = | |
b2dde6fc | 3288 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 3289 | |
4d57b86d | 3290 | f2fs_build_gc_manager(sbi); |
aff063e2 | 3291 | |
60aa4d55 ST |
3292 | err = f2fs_build_stats(sbi); |
3293 | if (err) | |
3294 | goto free_nm; | |
3295 | ||
aff063e2 JK |
3296 | /* get an inode for node space */ |
3297 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
3298 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 3299 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 | 3300 | err = PTR_ERR(sbi->node_inode); |
60aa4d55 | 3301 | goto free_stats; |
aff063e2 JK |
3302 | } |
3303 | ||
aff063e2 JK |
3304 | /* read root inode and dentry */ |
3305 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
3306 | if (IS_ERR(root)) { | |
a07ef784 | 3307 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 | 3308 | err = PTR_ERR(root); |
60aa4d55 | 3309 | goto free_node_inode; |
aff063e2 | 3310 | } |
bcbfbd60 CY |
3311 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || |
3312 | !root->i_size || !root->i_nlink) { | |
9d847950 | 3313 | iput(root); |
8f99a946 | 3314 | err = -EINVAL; |
60aa4d55 | 3315 | goto free_node_inode; |
8f99a946 | 3316 | } |
aff063e2 JK |
3317 | |
3318 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
3319 | if (!sb->s_root) { | |
3320 | err = -ENOMEM; | |
3321 | goto free_root_inode; | |
3322 | } | |
3323 | ||
dc6b2055 | 3324 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 3325 | if (err) |
a398101a | 3326 | goto free_root_inode; |
b59d0bae | 3327 | |
ea676733 | 3328 | #ifdef CONFIG_QUOTA |
76cf05d7 | 3329 | /* Enable quota usage during mount */ |
7beb01f7 | 3330 | if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) { |
ea676733 | 3331 | err = f2fs_enable_quotas(sb); |
730746ce | 3332 | if (err) |
ea676733 JK |
3333 | f2fs_msg(sb, KERN_ERR, |
3334 | "Cannot turn on quotas: error %d", err); | |
ea676733 JK |
3335 | } |
3336 | #endif | |
4b2414d0 | 3337 | /* if there are nt orphan nodes free them */ |
4d57b86d | 3338 | err = f2fs_recover_orphan_inodes(sbi); |
4b2414d0 | 3339 | if (err) |
ea676733 | 3340 | goto free_meta; |
4b2414d0 | 3341 | |
4354994f DR |
3342 | if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG))) |
3343 | goto skip_recovery; | |
3344 | ||
6437d1b0 JK |
3345 | /* recover fsynced data */ |
3346 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
3347 | /* |
3348 | * mount should be failed, when device has readonly mode, and | |
3349 | * previous checkpoint was not done by clean system shutdown. | |
3350 | */ | |
3351 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 3352 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 3353 | err = -EROFS; |
4b2414d0 | 3354 | goto free_meta; |
081d78c2 | 3355 | } |
2adc3505 CY |
3356 | |
3357 | if (need_fsck) | |
3358 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
3359 | ||
a468f0ef JK |
3360 | if (!retry) |
3361 | goto skip_recovery; | |
3362 | ||
4d57b86d | 3363 | err = f2fs_recover_fsync_data(sbi, false); |
6781eabb | 3364 | if (err < 0) { |
2adc3505 | 3365 | need_fsck = true; |
6437d1b0 | 3366 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 3367 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 3368 | goto free_meta; |
ed2e621a | 3369 | } |
6781eabb | 3370 | } else { |
4d57b86d | 3371 | err = f2fs_recover_fsync_data(sbi, true); |
6781eabb JK |
3372 | |
3373 | if (!f2fs_readonly(sb) && err > 0) { | |
3374 | err = -EINVAL; | |
3375 | f2fs_msg(sb, KERN_ERR, | |
3376 | "Need to recover fsync data"); | |
ea676733 | 3377 | goto free_meta; |
6781eabb | 3378 | } |
6437d1b0 | 3379 | } |
a468f0ef | 3380 | skip_recovery: |
4d57b86d | 3381 | /* f2fs_recover_fsync_data() cleared this already */ |
315df839 | 3382 | clear_sbi_flag(sbi, SBI_POR_DOING); |
b59d0bae | 3383 | |
4354994f DR |
3384 | if (test_opt(sbi, DISABLE_CHECKPOINT)) { |
3385 | err = f2fs_disable_checkpoint(sbi); | |
3386 | if (err) | |
812a9597 | 3387 | goto sync_free_meta; |
4354994f DR |
3388 | } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) { |
3389 | f2fs_enable_checkpoint(sbi); | |
3390 | } | |
3391 | ||
6437d1b0 JK |
3392 | /* |
3393 | * If filesystem is not mounted as read-only then | |
3394 | * do start the gc_thread. | |
3395 | */ | |
6c029932 | 3396 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 | 3397 | /* After POR, we can run background GC thread.*/ |
4d57b86d | 3398 | err = f2fs_start_gc_thread(sbi); |
6437d1b0 | 3399 | if (err) |
812a9597 | 3400 | goto sync_free_meta; |
6437d1b0 | 3401 | } |
5222595d | 3402 | kvfree(options); |
da554e48 | 3403 | |
3404 | /* recover broken superblock */ | |
f2353d7b | 3405 | if (recovery) { |
41214b3c CY |
3406 | err = f2fs_commit_super(sbi, true); |
3407 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 3408 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 3409 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 3410 | } |
3411 | ||
bae01eda CY |
3412 | f2fs_join_shrinker(sbi); |
3413 | ||
84b89e5d JK |
3414 | f2fs_tuning_parameters(sbi); |
3415 | ||
1200abb2 JK |
3416 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
3417 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 3418 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 3419 | f2fs_update_time(sbi, REQ_TIME); |
db610a64 | 3420 | clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
aff063e2 | 3421 | return 0; |
6437d1b0 | 3422 | |
812a9597 JK |
3423 | sync_free_meta: |
3424 | /* safe to flush all the data */ | |
3425 | sync_filesystem(sbi->sb); | |
3426 | retry = false; | |
3427 | ||
4b2414d0 | 3428 | free_meta: |
ea676733 | 3429 | #ifdef CONFIG_QUOTA |
26b5a079 | 3430 | f2fs_truncate_quota_inode_pages(sb); |
7beb01f7 | 3431 | if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) |
ea676733 JK |
3432 | f2fs_quota_off_umount(sbi->sb); |
3433 | #endif | |
4b2414d0 | 3434 | /* |
4d57b86d | 3435 | * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes() |
4b2414d0 | 3436 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() |
4d57b86d CY |
3437 | * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which |
3438 | * falls into an infinite loop in f2fs_sync_meta_pages(). | |
4b2414d0 CY |
3439 | */ |
3440 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
812a9597 JK |
3441 | /* evict some inodes being cached by GC */ |
3442 | evict_inodes(sb); | |
dc6b2055 | 3443 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
3444 | free_root_inode: |
3445 | dput(sb->s_root); | |
3446 | sb->s_root = NULL; | |
3447 | free_node_inode: | |
4d57b86d | 3448 | f2fs_release_ino_entry(sbi, true); |
bae01eda | 3449 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
aff063e2 | 3450 | iput(sbi->node_inode); |
7c77bf7d | 3451 | sbi->node_inode = NULL; |
60aa4d55 ST |
3452 | free_stats: |
3453 | f2fs_destroy_stats(sbi); | |
aff063e2 | 3454 | free_nm: |
4d57b86d | 3455 | f2fs_destroy_node_manager(sbi); |
aff063e2 | 3456 | free_sm: |
4d57b86d | 3457 | f2fs_destroy_segment_manager(sbi); |
3c62be17 JK |
3458 | free_devices: |
3459 | destroy_device_list(sbi); | |
5222595d | 3460 | kvfree(sbi->ckpt); |
aff063e2 JK |
3461 | free_meta_inode: |
3462 | make_bad_inode(sbi->meta_inode); | |
3463 | iput(sbi->meta_inode); | |
7c77bf7d | 3464 | sbi->meta_inode = NULL; |
0a595eba JK |
3465 | free_io_dummy: |
3466 | mempool_destroy(sbi->write_io_dummy); | |
d7997e63 CY |
3467 | free_percpu: |
3468 | destroy_percpu_info(sbi); | |
3469 | free_bio_info: | |
a912b54d | 3470 | for (i = 0; i < NR_PAGE_TYPE; i++) |
5222595d | 3471 | kvfree(sbi->write_io[i]); |
d7997e63 | 3472 | free_options: |
4b2414d0 CY |
3473 | #ifdef CONFIG_QUOTA |
3474 | for (i = 0; i < MAXQUOTAS; i++) | |
5222595d | 3475 | kvfree(F2FS_OPTION(sbi).s_qf_names[i]); |
4b2414d0 | 3476 | #endif |
5222595d | 3477 | kvfree(options); |
aff063e2 | 3478 | free_sb_buf: |
5222595d | 3479 | kvfree(raw_super); |
aff063e2 | 3480 | free_sbi: |
43b6573b KM |
3481 | if (sbi->s_chksum_driver) |
3482 | crypto_free_shash(sbi->s_chksum_driver); | |
5222595d | 3483 | kvfree(sbi); |
ed2e621a JK |
3484 | |
3485 | /* give only one another chance */ | |
3486 | if (retry) { | |
9df47ba7 | 3487 | retry = false; |
ed2e621a JK |
3488 | shrink_dcache_sb(sb); |
3489 | goto try_onemore; | |
3490 | } | |
aff063e2 JK |
3491 | return err; |
3492 | } | |
3493 | ||
3494 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
3495 | const char *dev_name, void *data) | |
3496 | { | |
3497 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
3498 | } | |
3499 | ||
30a5537f JK |
3500 | static void kill_f2fs_super(struct super_block *sb) |
3501 | { | |
cce13252 | 3502 | if (sb->s_root) { |
1cb50f87 JK |
3503 | struct f2fs_sb_info *sbi = F2FS_SB(sb); |
3504 | ||
3505 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
3506 | f2fs_stop_gc_thread(sbi); | |
3507 | f2fs_stop_discard_thread(sbi); | |
3508 | ||
3509 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || | |
3510 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { | |
3511 | struct cp_control cpc = { | |
3512 | .reason = CP_UMOUNT, | |
3513 | }; | |
3514 | f2fs_write_checkpoint(sbi, &cpc); | |
3515 | } | |
1378752b CY |
3516 | |
3517 | if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb)) | |
3518 | sb->s_flags &= ~SB_RDONLY; | |
cce13252 | 3519 | } |
30a5537f JK |
3520 | kill_block_super(sb); |
3521 | } | |
3522 | ||
aff063e2 JK |
3523 | static struct file_system_type f2fs_fs_type = { |
3524 | .owner = THIS_MODULE, | |
3525 | .name = "f2fs", | |
3526 | .mount = f2fs_mount, | |
30a5537f | 3527 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
3528 | .fs_flags = FS_REQUIRES_DEV, |
3529 | }; | |
7f78e035 | 3530 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 3531 | |
6e6093a8 | 3532 | static int __init init_inodecache(void) |
aff063e2 | 3533 | { |
5d097056 VD |
3534 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
3535 | sizeof(struct f2fs_inode_info), 0, | |
3536 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 3537 | if (!f2fs_inode_cachep) |
aff063e2 JK |
3538 | return -ENOMEM; |
3539 | return 0; | |
3540 | } | |
3541 | ||
3542 | static void destroy_inodecache(void) | |
3543 | { | |
3544 | /* | |
3545 | * Make sure all delayed rcu free inodes are flushed before we | |
3546 | * destroy cache. | |
3547 | */ | |
3548 | rcu_barrier(); | |
3549 | kmem_cache_destroy(f2fs_inode_cachep); | |
3550 | } | |
3551 | ||
3552 | static int __init init_f2fs_fs(void) | |
3553 | { | |
3554 | int err; | |
3555 | ||
4071e67c AP |
3556 | if (PAGE_SIZE != F2FS_BLKSIZE) { |
3557 | printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n", | |
3558 | PAGE_SIZE, F2FS_BLKSIZE); | |
3559 | return -EINVAL; | |
3560 | } | |
3561 | ||
c0508650 JK |
3562 | f2fs_build_trace_ios(); |
3563 | ||
aff063e2 JK |
3564 | err = init_inodecache(); |
3565 | if (err) | |
3566 | goto fail; | |
4d57b86d | 3567 | err = f2fs_create_node_manager_caches(); |
aff063e2 | 3568 | if (err) |
9890ff3f | 3569 | goto free_inodecache; |
4d57b86d | 3570 | err = f2fs_create_segment_manager_caches(); |
aff063e2 | 3571 | if (err) |
9890ff3f | 3572 | goto free_node_manager_caches; |
4d57b86d | 3573 | err = f2fs_create_checkpoint_caches(); |
aff063e2 | 3574 | if (err) |
06292073 | 3575 | goto free_segment_manager_caches; |
4d57b86d | 3576 | err = f2fs_create_extent_cache(); |
1dcc336b CY |
3577 | if (err) |
3578 | goto free_checkpoint_caches; | |
dc6b2055 | 3579 | err = f2fs_init_sysfs(); |
a398101a | 3580 | if (err) |
1dcc336b | 3581 | goto free_extent_cache; |
2658e50d | 3582 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 3583 | if (err) |
a398101a | 3584 | goto free_sysfs; |
2658e50d JK |
3585 | err = register_filesystem(&f2fs_fs_type); |
3586 | if (err) | |
3587 | goto free_shrinker; | |
c20e57b3 | 3588 | f2fs_create_root_stats(); |
6dbb1796 EB |
3589 | err = f2fs_init_post_read_processing(); |
3590 | if (err) | |
3591 | goto free_root_stats; | |
9890ff3f ZH |
3592 | return 0; |
3593 | ||
6dbb1796 EB |
3594 | free_root_stats: |
3595 | f2fs_destroy_root_stats(); | |
787c7b8c | 3596 | unregister_filesystem(&f2fs_fs_type); |
2658e50d JK |
3597 | free_shrinker: |
3598 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 3599 | free_sysfs: |
dc6b2055 | 3600 | f2fs_exit_sysfs(); |
1dcc336b | 3601 | free_extent_cache: |
4d57b86d | 3602 | f2fs_destroy_extent_cache(); |
9890ff3f | 3603 | free_checkpoint_caches: |
4d57b86d | 3604 | f2fs_destroy_checkpoint_caches(); |
7fd9e544 | 3605 | free_segment_manager_caches: |
4d57b86d | 3606 | f2fs_destroy_segment_manager_caches(); |
9890ff3f | 3607 | free_node_manager_caches: |
4d57b86d | 3608 | f2fs_destroy_node_manager_caches(); |
9890ff3f ZH |
3609 | free_inodecache: |
3610 | destroy_inodecache(); | |
aff063e2 JK |
3611 | fail: |
3612 | return err; | |
3613 | } | |
3614 | ||
3615 | static void __exit exit_f2fs_fs(void) | |
3616 | { | |
6dbb1796 | 3617 | f2fs_destroy_post_read_processing(); |
4589d25d | 3618 | f2fs_destroy_root_stats(); |
aff063e2 | 3619 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 3620 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 3621 | f2fs_exit_sysfs(); |
4d57b86d CY |
3622 | f2fs_destroy_extent_cache(); |
3623 | f2fs_destroy_checkpoint_caches(); | |
3624 | f2fs_destroy_segment_manager_caches(); | |
3625 | f2fs_destroy_node_manager_caches(); | |
aff063e2 | 3626 | destroy_inodecache(); |
351f4fba | 3627 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
3628 | } |
3629 | ||
3630 | module_init(init_f2fs_fs) | |
3631 | module_exit(exit_f2fs_fs) | |
3632 | ||
3633 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
3634 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
3635 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 3636 |