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d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 only, | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License version 2 for more details (a copy is included | |
14 | * in the LICENSE file that accompanied this code). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | * | |
1dc563a6 | 30 | * Copyright (c) 2011, 2015, Intel Corporation. |
d7e09d03 PT |
31 | */ |
32 | /* | |
33 | * This file is part of Lustre, http://www.lustre.org/ | |
34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
35 | * | |
36 | * lustre/llite/llite_lib.c | |
37 | * | |
38 | * Lustre Light Super operations | |
39 | */ | |
40 | ||
41 | #define DEBUG_SUBSYSTEM S_LLITE | |
42 | ||
43 | #include <linux/module.h> | |
a9c7db39 | 44 | #include <linux/statfs.h> |
d7e09d03 | 45 | #include <linux/types.h> |
d7e09d03 PT |
46 | #include <linux/mm.h> |
47 | ||
67a235f5 GKH |
48 | #include "../include/lustre_lite.h" |
49 | #include "../include/lustre_ha.h" | |
50 | #include "../include/lustre_dlm.h" | |
51 | #include "../include/lprocfs_status.h" | |
52 | #include "../include/lustre_disk.h" | |
53 | #include "../include/lustre_param.h" | |
54 | #include "../include/lustre_log.h" | |
55 | #include "../include/cl_object.h" | |
56 | #include "../include/obd_cksum.h" | |
d7e09d03 PT |
57 | #include "llite_internal.h" |
58 | ||
59 | struct kmem_cache *ll_file_data_slab; | |
ae7c0f48 | 60 | struct dentry *llite_root; |
fd0d04ba | 61 | struct kset *llite_kset; |
d7e09d03 | 62 | |
d7e09d03 PT |
63 | #ifndef log2 |
64 | #define log2(n) ffz(~(n)) | |
65 | #endif | |
66 | ||
fd0d04ba | 67 | static struct ll_sb_info *ll_init_sbi(struct super_block *sb) |
d7e09d03 PT |
68 | { |
69 | struct ll_sb_info *sbi = NULL; | |
70 | unsigned long pages; | |
71 | unsigned long lru_page_max; | |
72 | struct sysinfo si; | |
73 | class_uuid_t uuid; | |
74 | int i; | |
d7e09d03 | 75 | |
496a51bd | 76 | sbi = kzalloc(sizeof(*sbi), GFP_NOFS); |
d7e09d03 | 77 | if (!sbi) |
0a3bdb00 | 78 | return NULL; |
d7e09d03 PT |
79 | |
80 | spin_lock_init(&sbi->ll_lock); | |
81 | mutex_init(&sbi->ll_lco.lco_lock); | |
82 | spin_lock_init(&sbi->ll_pp_extent_lock); | |
83 | spin_lock_init(&sbi->ll_process_lock); | |
84 | sbi->ll_rw_stats_on = 0; | |
85 | ||
86 | si_meminfo(&si); | |
87 | pages = si.totalram - si.totalhigh; | |
99d08456 | 88 | if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) |
d7e09d03 | 89 | lru_page_max = pages / 2; |
99d08456 | 90 | else |
d7e09d03 | 91 | lru_page_max = (pages / 4) * 3; |
d7e09d03 | 92 | |
c52f69c5 | 93 | /* initialize lru data */ |
d7e09d03 PT |
94 | atomic_set(&sbi->ll_cache.ccc_users, 0); |
95 | sbi->ll_cache.ccc_lru_max = lru_page_max; | |
96 | atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max); | |
97 | spin_lock_init(&sbi->ll_cache.ccc_lru_lock); | |
98 | INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru); | |
99 | ||
d7e09d03 PT |
100 | sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32, |
101 | SBI_DEFAULT_READAHEAD_MAX); | |
102 | sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file; | |
103 | sbi->ll_ra_info.ra_max_read_ahead_whole_pages = | |
104 | SBI_DEFAULT_READAHEAD_WHOLE_MAX; | |
105 | INIT_LIST_HEAD(&sbi->ll_conn_chain); | |
106 | INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list); | |
107 | ||
108 | ll_generate_random_uuid(uuid); | |
109 | class_uuid_unparse(uuid, &sbi->ll_sb_uuid); | |
110 | CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid); | |
111 | ||
d7e09d03 PT |
112 | sbi->ll_flags |= LL_SBI_VERBOSE; |
113 | sbi->ll_flags |= LL_SBI_CHECKSUM; | |
114 | ||
115 | sbi->ll_flags |= LL_SBI_LRU_RESIZE; | |
116 | ||
117 | for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) { | |
118 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
119 | pp_r_hist.oh_lock); | |
120 | spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. | |
121 | pp_w_hist.oh_lock); | |
122 | } | |
123 | ||
124 | /* metadata statahead is enabled by default */ | |
125 | sbi->ll_sa_max = LL_SA_RPC_DEF; | |
126 | atomic_set(&sbi->ll_sa_total, 0); | |
127 | atomic_set(&sbi->ll_sa_wrong, 0); | |
128 | atomic_set(&sbi->ll_agl_total, 0); | |
129 | sbi->ll_flags |= LL_SBI_AGL_ENABLED; | |
130 | ||
fd0d04ba OD |
131 | sbi->ll_sb = sb; |
132 | ||
0a3bdb00 | 133 | return sbi; |
d7e09d03 PT |
134 | } |
135 | ||
2d95f10e | 136 | static void ll_free_sbi(struct super_block *sb) |
d7e09d03 PT |
137 | { |
138 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 | 139 | |
ad88aae0 | 140 | kfree(sbi); |
d7e09d03 PT |
141 | } |
142 | ||
d7e09d03 PT |
143 | static int client_common_fill_super(struct super_block *sb, char *md, char *dt, |
144 | struct vfsmount *mnt) | |
145 | { | |
ea7893bb | 146 | struct inode *root = NULL; |
d7e09d03 PT |
147 | struct ll_sb_info *sbi = ll_s2sbi(sb); |
148 | struct obd_device *obd; | |
d7e09d03 PT |
149 | struct obd_statfs *osfs = NULL; |
150 | struct ptlrpc_request *request = NULL; | |
151 | struct obd_connect_data *data = NULL; | |
152 | struct obd_uuid *uuid; | |
153 | struct md_op_data *op_data; | |
154 | struct lustre_md lmd; | |
21aef7d9 | 155 | u64 valid; |
d7e09d03 | 156 | int size, err, checksum; |
d7e09d03 PT |
157 | |
158 | obd = class_name2obd(md); | |
159 | if (!obd) { | |
160 | CERROR("MD %s: not setup or attached\n", md); | |
0a3bdb00 | 161 | return -EINVAL; |
d7e09d03 PT |
162 | } |
163 | ||
496a51bd JL |
164 | data = kzalloc(sizeof(*data), GFP_NOFS); |
165 | if (!data) | |
0a3bdb00 | 166 | return -ENOMEM; |
d7e09d03 | 167 | |
496a51bd JL |
168 | osfs = kzalloc(sizeof(*osfs), GFP_NOFS); |
169 | if (!osfs) { | |
97903a26 | 170 | kfree(data); |
0a3bdb00 | 171 | return -ENOMEM; |
d7e09d03 PT |
172 | } |
173 | ||
6e16818b | 174 | if (llite_root) { |
ae7c0f48 | 175 | err = ldebugfs_register_mountpoint(llite_root, sb, dt, md); |
d7e09d03 | 176 | if (err < 0) |
ae7c0f48 | 177 | CERROR("could not register mount in <debugfs>/lustre/llite\n"); |
d7e09d03 PT |
178 | } |
179 | ||
180 | /* indicate the features supported by this client */ | |
181 | data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | | |
182 | OBD_CONNECT_ATTRFID | | |
183 | OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE | | |
d7e09d03 PT |
184 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | |
185 | OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 | | |
186 | OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR | | |
187 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH| | |
188 | OBD_CONNECT_EINPROGRESS | | |
189 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
7fc1f831 | 190 | OBD_CONNECT_LAYOUTLOCK | |
69342b78 AS |
191 | OBD_CONNECT_PINGLESS | |
192 | OBD_CONNECT_MAX_EASIZE | | |
63d42578 HZ |
193 | OBD_CONNECT_FLOCK_DEAD | |
194 | OBD_CONNECT_DISP_STRIPE; | |
d7e09d03 PT |
195 | |
196 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
197 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
198 | ||
199 | if (sbi->ll_flags & LL_SBI_LRU_RESIZE) | |
200 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
201 | #ifdef CONFIG_FS_POSIX_ACL | |
202 | data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK; | |
203 | #endif | |
204 | ||
205 | if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT)) | |
206 | /* flag mdc connection as lightweight, only used for test | |
207 | * purpose, use with care */ | |
208 | data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT; | |
209 | ||
210 | data->ocd_ibits_known = MDS_INODELOCK_FULL; | |
211 | data->ocd_version = LUSTRE_VERSION_CODE; | |
212 | ||
213 | if (sb->s_flags & MS_RDONLY) | |
214 | data->ocd_connect_flags |= OBD_CONNECT_RDONLY; | |
215 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
216 | data->ocd_connect_flags |= OBD_CONNECT_XATTR; | |
217 | ||
d7e09d03 PT |
218 | if (sbi->ll_flags & LL_SBI_FLOCK) |
219 | sbi->ll_fop = &ll_file_operations_flock; | |
220 | else if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
221 | sbi->ll_fop = &ll_file_operations; | |
222 | else | |
223 | sbi->ll_fop = &ll_file_operations_noflock; | |
224 | ||
225 | /* real client */ | |
226 | data->ocd_connect_flags |= OBD_CONNECT_REAL; | |
227 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
228 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
229 | ||
230 | data->ocd_brw_size = MD_MAX_BRW_SIZE; | |
231 | ||
e6768831 TJ |
232 | err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, |
233 | data, NULL); | |
d7e09d03 | 234 | if (err == -EBUSY) { |
2d00bd17 JP |
235 | LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
236 | md); | |
34e1f2bb | 237 | goto out; |
d7e09d03 PT |
238 | } else if (err) { |
239 | CERROR("cannot connect to %s: rc = %d\n", md, err); | |
34e1f2bb | 240 | goto out; |
d7e09d03 PT |
241 | } |
242 | ||
243 | sbi->ll_md_exp->exp_connect_data = *data; | |
244 | ||
245 | err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp, | |
246 | LUSTRE_SEQ_METADATA); | |
247 | if (err) { | |
2d00bd17 JP |
248 | CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n", |
249 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 250 | goto out_md; |
d7e09d03 PT |
251 | } |
252 | ||
253 | /* For mount, we only need fs info from MDT0, and also in DNE, it | |
254 | * can make sure the client can be mounted as long as MDT0 is | |
d0a0acc3 | 255 | * available */ |
d7e09d03 PT |
256 | err = obd_statfs(NULL, sbi->ll_md_exp, osfs, |
257 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
258 | OBD_STATFS_FOR_MDT0); | |
259 | if (err) | |
34e1f2bb | 260 | goto out_md_fid; |
d7e09d03 PT |
261 | |
262 | /* This needs to be after statfs to ensure connect has finished. | |
263 | * Note that "data" does NOT contain the valid connect reply. | |
264 | * If connecting to a 1.8 server there will be no LMV device, so | |
265 | * we can access the MDC export directly and exp_connect_flags will | |
266 | * be non-zero, but if accessing an upgraded 2.1 server it will | |
267 | * have the correct flags filled in. | |
268 | * XXX: fill in the LMV exp_connect_flags from MDC(s). */ | |
269 | valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD; | |
270 | if (exp_connect_flags(sbi->ll_md_exp) != 0 && | |
271 | valid != CLIENT_CONNECT_MDT_REQD) { | |
272 | char *buf; | |
273 | ||
496a51bd | 274 | buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL); |
db562e81 GEHP |
275 | if (!buf) { |
276 | err = -ENOMEM; | |
277 | goto out_md_fid; | |
278 | } | |
d7e09d03 PT |
279 | obd_connect_flags2str(buf, PAGE_CACHE_SIZE, |
280 | valid ^ CLIENT_CONNECT_MDT_REQD, ","); | |
2d00bd17 | 281 | LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n", |
d7e09d03 | 282 | sbi->ll_md_exp->exp_obd->obd_name, buf); |
97903a26 | 283 | kfree(buf); |
34e1f2bb JL |
284 | err = -EPROTO; |
285 | goto out_md_fid; | |
d7e09d03 PT |
286 | } |
287 | ||
288 | size = sizeof(*data); | |
289 | err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA), | |
290 | KEY_CONN_DATA, &size, data, NULL); | |
291 | if (err) { | |
292 | CERROR("%s: Get connect data failed: rc = %d\n", | |
293 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 294 | goto out_md_fid; |
d7e09d03 PT |
295 | } |
296 | ||
297 | LASSERT(osfs->os_bsize); | |
298 | sb->s_blocksize = osfs->os_bsize; | |
299 | sb->s_blocksize_bits = log2(osfs->os_bsize); | |
300 | sb->s_magic = LL_SUPER_MAGIC; | |
301 | sb->s_maxbytes = MAX_LFS_FILESIZE; | |
302 | sbi->ll_namelen = osfs->os_namelen; | |
d7e09d03 PT |
303 | |
304 | if ((sbi->ll_flags & LL_SBI_USER_XATTR) && | |
305 | !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) { | |
2d00bd17 | 306 | LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n"); |
d7e09d03 PT |
307 | sbi->ll_flags &= ~LL_SBI_USER_XATTR; |
308 | } | |
309 | ||
310 | if (data->ocd_connect_flags & OBD_CONNECT_ACL) { | |
311 | #ifdef MS_POSIXACL | |
312 | sb->s_flags |= MS_POSIXACL; | |
313 | #endif | |
314 | sbi->ll_flags |= LL_SBI_ACL; | |
315 | } else { | |
316 | LCONSOLE_INFO("client wants to enable acl, but mdt not!\n"); | |
317 | #ifdef MS_POSIXACL | |
318 | sb->s_flags &= ~MS_POSIXACL; | |
319 | #endif | |
320 | sbi->ll_flags &= ~LL_SBI_ACL; | |
321 | } | |
322 | ||
323 | if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) { | |
324 | if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) { | |
325 | sbi->ll_flags |= LL_SBI_RMT_CLIENT; | |
326 | LCONSOLE_INFO("client is set as remote by default.\n"); | |
327 | } | |
328 | } else { | |
329 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
330 | sbi->ll_flags &= ~LL_SBI_RMT_CLIENT; | |
2d00bd17 | 331 | LCONSOLE_INFO("client claims to be remote, but server rejected, forced to be local.\n"); |
d7e09d03 PT |
332 | } |
333 | } | |
334 | ||
d7e09d03 PT |
335 | if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH) |
336 | sbi->ll_flags |= LL_SBI_64BIT_HASH; | |
337 | ||
338 | if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) | |
339 | sbi->ll_md_brw_size = data->ocd_brw_size; | |
340 | else | |
341 | sbi->ll_md_brw_size = PAGE_CACHE_SIZE; | |
342 | ||
343 | if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) { | |
344 | LCONSOLE_INFO("Layout lock feature supported.\n"); | |
345 | sbi->ll_flags |= LL_SBI_LAYOUT_LOCK; | |
346 | } | |
347 | ||
7fc1f831 AP |
348 | if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) { |
349 | if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) { | |
350 | LCONSOLE_INFO( | |
351 | "%s: disabling xattr cache due to unknown maximum xattr size.\n", | |
352 | dt); | |
353 | } else { | |
354 | sbi->ll_flags |= LL_SBI_XATTR_CACHE; | |
355 | sbi->ll_xattr_cache_enabled = 1; | |
356 | } | |
357 | } | |
358 | ||
d7e09d03 PT |
359 | obd = class_name2obd(dt); |
360 | if (!obd) { | |
361 | CERROR("DT %s: not setup or attached\n", dt); | |
34e1f2bb JL |
362 | err = -ENODEV; |
363 | goto out_md_fid; | |
d7e09d03 PT |
364 | } |
365 | ||
366 | data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION | | |
367 | OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE | | |
368 | OBD_CONNECT_CANCELSET | OBD_CONNECT_FID | | |
369 | OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK| | |
370 | OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT | | |
371 | OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR| | |
372 | OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH | | |
373 | OBD_CONNECT_MAXBYTES | | |
374 | OBD_CONNECT_EINPROGRESS | | |
375 | OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE | | |
376 | OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS; | |
377 | ||
378 | if (sbi->ll_flags & LL_SBI_SOM_PREVIEW) | |
379 | data->ocd_connect_flags |= OBD_CONNECT_SOM; | |
380 | ||
381 | if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) { | |
382 | /* OBD_CONNECT_CKSUM should always be set, even if checksums are | |
383 | * disabled by default, because it can still be enabled on the | |
40cc864a | 384 | * fly via /sys. As a consequence, we still need to come to an |
d7e09d03 PT |
385 | * agreement on the supported algorithms at connect time */ |
386 | data->ocd_connect_flags |= OBD_CONNECT_CKSUM; | |
387 | ||
388 | if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY)) | |
389 | data->ocd_cksum_types = OBD_CKSUM_ADLER; | |
390 | else | |
391 | data->ocd_cksum_types = cksum_types_supported_client(); | |
392 | } | |
393 | ||
394 | data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE; | |
395 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) | |
396 | data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE; | |
397 | ||
2d00bd17 JP |
398 | CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n", |
399 | data->ocd_connect_flags, | |
d7e09d03 PT |
400 | data->ocd_version, data->ocd_grant); |
401 | ||
402 | obd->obd_upcall.onu_owner = &sbi->ll_lco; | |
403 | obd->obd_upcall.onu_upcall = cl_ocd_update; | |
404 | ||
405 | data->ocd_brw_size = DT_MAX_BRW_SIZE; | |
406 | ||
407 | err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, | |
408 | NULL); | |
409 | if (err == -EBUSY) { | |
2d00bd17 JP |
410 | LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", |
411 | dt); | |
34e1f2bb | 412 | goto out_md; |
d7e09d03 PT |
413 | } else if (err) { |
414 | CERROR("%s: Cannot connect to %s: rc = %d\n", | |
415 | sbi->ll_dt_exp->exp_obd->obd_name, dt, err); | |
34e1f2bb | 416 | goto out_md; |
d7e09d03 PT |
417 | } |
418 | ||
419 | sbi->ll_dt_exp->exp_connect_data = *data; | |
420 | ||
421 | err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp, | |
422 | LUSTRE_SEQ_METADATA); | |
423 | if (err) { | |
2d00bd17 JP |
424 | CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n", |
425 | sbi->ll_dt_exp->exp_obd->obd_name, err); | |
34e1f2bb | 426 | goto out_dt; |
d7e09d03 PT |
427 | } |
428 | ||
429 | mutex_lock(&sbi->ll_lco.lco_lock); | |
430 | sbi->ll_lco.lco_flags = data->ocd_connect_flags; | |
431 | sbi->ll_lco.lco_md_exp = sbi->ll_md_exp; | |
432 | sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp; | |
433 | mutex_unlock(&sbi->ll_lco.lco_lock); | |
434 | ||
435 | fid_zero(&sbi->ll_root_fid); | |
ef2e0f55 | 436 | err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid); |
d7e09d03 PT |
437 | if (err) { |
438 | CERROR("cannot mds_connect: rc = %d\n", err); | |
34e1f2bb | 439 | goto out_lock_cn_cb; |
d7e09d03 PT |
440 | } |
441 | if (!fid_is_sane(&sbi->ll_root_fid)) { | |
442 | CERROR("%s: Invalid root fid "DFID" during mount\n", | |
443 | sbi->ll_md_exp->exp_obd->obd_name, | |
444 | PFID(&sbi->ll_root_fid)); | |
34e1f2bb JL |
445 | err = -EINVAL; |
446 | goto out_lock_cn_cb; | |
d7e09d03 PT |
447 | } |
448 | CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid)); | |
449 | ||
450 | sb->s_op = &lustre_super_operations; | |
451 | #if THREAD_SIZE >= 8192 /*b=17630*/ | |
452 | sb->s_export_op = &lustre_export_operations; | |
453 | #endif | |
454 | ||
455 | /* make root inode | |
456 | * XXX: move this to after cbd setup? */ | |
ef2e0f55 | 457 | valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS; |
d7e09d03 PT |
458 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) |
459 | valid |= OBD_MD_FLRMTPERM; | |
460 | else if (sbi->ll_flags & LL_SBI_ACL) | |
461 | valid |= OBD_MD_FLACL; | |
462 | ||
496a51bd JL |
463 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
464 | if (!op_data) { | |
34e1f2bb JL |
465 | err = -ENOMEM; |
466 | goto out_lock_cn_cb; | |
467 | } | |
d7e09d03 PT |
468 | |
469 | op_data->op_fid1 = sbi->ll_root_fid; | |
470 | op_data->op_mode = 0; | |
d7e09d03 PT |
471 | op_data->op_valid = valid; |
472 | ||
473 | err = md_getattr(sbi->ll_md_exp, op_data, &request); | |
97903a26 | 474 | kfree(op_data); |
d7e09d03 PT |
475 | if (err) { |
476 | CERROR("%s: md_getattr failed for root: rc = %d\n", | |
477 | sbi->ll_md_exp->exp_obd->obd_name, err); | |
34e1f2bb | 478 | goto out_lock_cn_cb; |
d7e09d03 PT |
479 | } |
480 | ||
481 | err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
482 | sbi->ll_md_exp, &lmd); | |
483 | if (err) { | |
484 | CERROR("failed to understand root inode md: rc = %d\n", err); | |
485 | ptlrpc_req_finished(request); | |
34e1f2bb | 486 | goto out_lock_cn_cb; |
d7e09d03 PT |
487 | } |
488 | ||
489 | LASSERT(fid_is_sane(&sbi->ll_root_fid)); | |
490 | root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, | |
c1e2699d | 491 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 PT |
492 | &lmd); |
493 | md_free_lustre_md(sbi->ll_md_exp, &lmd); | |
494 | ptlrpc_req_finished(request); | |
495 | ||
6e16818b | 496 | if (IS_ERR_OR_NULL(root)) { |
d7e09d03 PT |
497 | if (lmd.lsm) |
498 | obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm); | |
499 | #ifdef CONFIG_FS_POSIX_ACL | |
500 | if (lmd.posix_acl) { | |
501 | posix_acl_release(lmd.posix_acl); | |
502 | lmd.posix_acl = NULL; | |
503 | } | |
504 | #endif | |
505 | err = IS_ERR(root) ? PTR_ERR(root) : -EBADF; | |
506 | root = NULL; | |
507 | CERROR("lustre_lite: bad iget4 for root\n"); | |
34e1f2bb | 508 | goto out_root; |
d7e09d03 PT |
509 | } |
510 | ||
511 | err = ll_close_thread_start(&sbi->ll_lcq); | |
512 | if (err) { | |
513 | CERROR("cannot start close thread: rc %d\n", err); | |
34e1f2bb | 514 | goto out_root; |
d7e09d03 PT |
515 | } |
516 | ||
517 | #ifdef CONFIG_FS_POSIX_ACL | |
518 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
519 | rct_init(&sbi->ll_rct); | |
520 | et_init(&sbi->ll_et); | |
521 | } | |
522 | #endif | |
523 | ||
524 | checksum = sbi->ll_flags & LL_SBI_CHECKSUM; | |
525 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), | |
526 | KEY_CHECKSUM, sizeof(checksum), &checksum, | |
527 | NULL); | |
528 | cl_sb_init(sb); | |
529 | ||
530 | err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET), | |
531 | KEY_CACHE_SET, sizeof(sbi->ll_cache), | |
532 | &sbi->ll_cache, NULL); | |
533 | ||
534 | sb->s_root = d_make_root(root); | |
6e16818b | 535 | if (!sb->s_root) { |
d7e09d03 PT |
536 | CERROR("%s: can't make root dentry\n", |
537 | ll_get_fsname(sb, NULL, 0)); | |
34e1f2bb | 538 | err = -ENOMEM; |
caf382fe | 539 | goto out_lock_cn_cb; |
d7e09d03 PT |
540 | } |
541 | ||
d7e09d03 PT |
542 | sbi->ll_sdev_orig = sb->s_dev; |
543 | ||
544 | /* We set sb->s_dev equal on all lustre clients in order to support | |
545 | * NFS export clustering. NFSD requires that the FSID be the same | |
546 | * on all clients. */ | |
547 | /* s_dev is also used in lt_compare() to compare two fs, but that is | |
548 | * only a node-local comparison. */ | |
549 | uuid = obd_get_uuid(sbi->ll_md_exp); | |
6e16818b | 550 | if (uuid) { |
d7e09d03 | 551 | sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid)); |
bd994071 FY |
552 | get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid); |
553 | } | |
d7e09d03 | 554 | |
081825f5 JL |
555 | kfree(data); |
556 | kfree(osfs); | |
d7e09d03 | 557 | |
0a3bdb00 | 558 | return err; |
d7e09d03 | 559 | out_root: |
ddafd514 | 560 | iput(root); |
d7e09d03 PT |
561 | out_lock_cn_cb: |
562 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
563 | out_dt: | |
564 | obd_disconnect(sbi->ll_dt_exp); | |
565 | sbi->ll_dt_exp = NULL; | |
566 | /* Make sure all OScs are gone, since cl_cache is accessing sbi. */ | |
567 | obd_zombie_barrier(); | |
568 | out_md_fid: | |
569 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
570 | out_md: | |
571 | obd_disconnect(sbi->ll_md_exp); | |
572 | sbi->ll_md_exp = NULL; | |
573 | out: | |
081825f5 JL |
574 | kfree(data); |
575 | kfree(osfs); | |
ae7c0f48 | 576 | ldebugfs_unregister_mountpoint(sbi); |
d7e09d03 PT |
577 | return err; |
578 | } | |
579 | ||
580 | int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
581 | { | |
582 | int size, rc; | |
583 | ||
584 | *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL); | |
585 | size = sizeof(int); | |
586 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE), | |
587 | KEY_MAX_EASIZE, &size, lmmsize, NULL); | |
588 | if (rc) | |
4f211c20 | 589 | CERROR("Get max mdsize error rc %d\n", rc); |
d7e09d03 | 590 | |
0a3bdb00 | 591 | return rc; |
44779340 BB |
592 | } |
593 | ||
594 | int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize) | |
595 | { | |
596 | int size, rc; | |
597 | ||
598 | size = sizeof(int); | |
599 | rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE), | |
600 | KEY_DEFAULT_EASIZE, &size, lmmsize, NULL); | |
601 | if (rc) | |
602 | CERROR("Get default mdsize error rc %d\n", rc); | |
603 | ||
604 | return rc; | |
605 | } | |
606 | ||
2d95f10e | 607 | static void client_common_put_super(struct super_block *sb) |
d7e09d03 PT |
608 | { |
609 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
d7e09d03 PT |
610 | |
611 | #ifdef CONFIG_FS_POSIX_ACL | |
612 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
613 | et_fini(&sbi->ll_et); | |
614 | rct_fini(&sbi->ll_rct); | |
615 | } | |
616 | #endif | |
617 | ||
618 | ll_close_thread_shutdown(sbi->ll_lcq); | |
619 | ||
620 | cl_sb_fini(sb); | |
621 | ||
622 | list_del(&sbi->ll_conn_chain); | |
623 | ||
624 | obd_fid_fini(sbi->ll_dt_exp->exp_obd); | |
625 | obd_disconnect(sbi->ll_dt_exp); | |
626 | sbi->ll_dt_exp = NULL; | |
627 | /* wait till all OSCs are gone, since cl_cache is accessing sbi. | |
628 | * see LU-2543. */ | |
629 | obd_zombie_barrier(); | |
630 | ||
ae7c0f48 | 631 | ldebugfs_unregister_mountpoint(sbi); |
d7e09d03 PT |
632 | |
633 | obd_fid_fini(sbi->ll_md_exp->exp_obd); | |
634 | obd_disconnect(sbi->ll_md_exp); | |
635 | sbi->ll_md_exp = NULL; | |
d7e09d03 PT |
636 | } |
637 | ||
638 | void ll_kill_super(struct super_block *sb) | |
639 | { | |
640 | struct ll_sb_info *sbi; | |
641 | ||
d7e09d03 PT |
642 | /* not init sb ?*/ |
643 | if (!(sb->s_flags & MS_ACTIVE)) | |
644 | return; | |
645 | ||
646 | sbi = ll_s2sbi(sb); | |
e6768831 TJ |
647 | /* we need to restore s_dev from changed for clustered NFS before |
648 | * put_super because new kernels have cached s_dev and change sb->s_dev | |
649 | * in put_super not affected real removing devices */ | |
65fb55d1 | 650 | if (sbi) { |
d7e09d03 | 651 | sb->s_dev = sbi->ll_sdev_orig; |
65fb55d1 NY |
652 | sbi->ll_umounting = 1; |
653 | } | |
d7e09d03 PT |
654 | } |
655 | ||
d7e09d03 PT |
656 | static inline int ll_set_opt(const char *opt, char *data, int fl) |
657 | { | |
658 | if (strncmp(opt, data, strlen(opt)) != 0) | |
fbe7c6c7 | 659 | return 0; |
d7e09d03 | 660 | else |
fbe7c6c7 | 661 | return fl; |
d7e09d03 PT |
662 | } |
663 | ||
664 | /* non-client-specific mount options are parsed in lmd_parse */ | |
665 | static int ll_options(char *options, int *flags) | |
666 | { | |
667 | int tmp; | |
668 | char *s1 = options, *s2; | |
d7e09d03 PT |
669 | |
670 | if (!options) | |
0a3bdb00 | 671 | return 0; |
d7e09d03 PT |
672 | |
673 | CDEBUG(D_CONFIG, "Parsing opts %s\n", options); | |
674 | ||
675 | while (*s1) { | |
676 | CDEBUG(D_SUPER, "next opt=%s\n", s1); | |
677 | tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK); | |
678 | if (tmp) { | |
679 | *flags |= tmp; | |
680 | goto next; | |
681 | } | |
682 | tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK); | |
683 | if (tmp) { | |
684 | *flags |= tmp; | |
685 | goto next; | |
686 | } | |
687 | tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK); | |
688 | if (tmp) { | |
689 | *flags |= tmp; | |
690 | goto next; | |
691 | } | |
692 | tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK); | |
693 | if (tmp) { | |
694 | *flags &= ~tmp; | |
695 | goto next; | |
696 | } | |
697 | tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR); | |
698 | if (tmp) { | |
699 | *flags |= tmp; | |
700 | goto next; | |
701 | } | |
702 | tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR); | |
703 | if (tmp) { | |
704 | *flags &= ~tmp; | |
705 | goto next; | |
706 | } | |
d7e09d03 PT |
707 | tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT); |
708 | if (tmp) { | |
709 | *flags |= tmp; | |
710 | goto next; | |
711 | } | |
712 | tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH); | |
713 | if (tmp) { | |
714 | *flags |= tmp; | |
715 | goto next; | |
716 | } | |
717 | tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH); | |
718 | if (tmp) { | |
719 | *flags &= ~tmp; | |
720 | goto next; | |
721 | } | |
722 | ||
723 | tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM); | |
724 | if (tmp) { | |
725 | *flags |= tmp; | |
726 | goto next; | |
727 | } | |
728 | tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM); | |
729 | if (tmp) { | |
730 | *flags &= ~tmp; | |
731 | goto next; | |
732 | } | |
733 | tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE); | |
734 | if (tmp) { | |
735 | *flags |= tmp; | |
736 | goto next; | |
737 | } | |
738 | tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE); | |
739 | if (tmp) { | |
740 | *flags &= ~tmp; | |
741 | goto next; | |
742 | } | |
743 | tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS); | |
744 | if (tmp) { | |
745 | *flags |= tmp; | |
746 | goto next; | |
747 | } | |
748 | tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS); | |
749 | if (tmp) { | |
750 | *flags &= ~tmp; | |
751 | goto next; | |
752 | } | |
753 | tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW); | |
754 | if (tmp) { | |
755 | *flags |= tmp; | |
756 | goto next; | |
757 | } | |
758 | tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API); | |
759 | if (tmp) { | |
760 | *flags |= tmp; | |
761 | goto next; | |
762 | } | |
763 | tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE); | |
764 | if (tmp) { | |
765 | *flags |= tmp; | |
766 | goto next; | |
767 | } | |
768 | tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE); | |
769 | if (tmp) { | |
770 | *flags &= ~tmp; | |
771 | goto next; | |
772 | } | |
773 | LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n", | |
774 | s1); | |
0a3bdb00 | 775 | return -EINVAL; |
d7e09d03 PT |
776 | |
777 | next: | |
778 | /* Find next opt */ | |
779 | s2 = strchr(s1, ','); | |
6e16818b | 780 | if (!s2) |
d7e09d03 PT |
781 | break; |
782 | s1 = s2 + 1; | |
783 | } | |
0a3bdb00 | 784 | return 0; |
d7e09d03 PT |
785 | } |
786 | ||
787 | void ll_lli_init(struct ll_inode_info *lli) | |
788 | { | |
789 | lli->lli_inode_magic = LLI_INODE_MAGIC; | |
790 | lli->lli_flags = 0; | |
791 | lli->lli_ioepoch = 0; | |
792 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
793 | spin_lock_init(&lli->lli_lock); | |
794 | lli->lli_posix_acl = NULL; | |
795 | lli->lli_remote_perms = NULL; | |
796 | mutex_init(&lli->lli_rmtperm_mutex); | |
797 | /* Do not set lli_fid, it has been initialized already. */ | |
798 | fid_zero(&lli->lli_pfid); | |
799 | INIT_LIST_HEAD(&lli->lli_close_list); | |
d7e09d03 PT |
800 | lli->lli_rmtperm_time = 0; |
801 | lli->lli_pending_och = NULL; | |
802 | lli->lli_mds_read_och = NULL; | |
803 | lli->lli_mds_write_och = NULL; | |
804 | lli->lli_mds_exec_och = NULL; | |
805 | lli->lli_open_fd_read_count = 0; | |
806 | lli->lli_open_fd_write_count = 0; | |
807 | lli->lli_open_fd_exec_count = 0; | |
808 | mutex_init(&lli->lli_och_mutex); | |
809 | spin_lock_init(&lli->lli_agl_lock); | |
810 | lli->lli_has_smd = false; | |
09aed8a5 JX |
811 | spin_lock_init(&lli->lli_layout_lock); |
812 | ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE); | |
d7e09d03 PT |
813 | lli->lli_clob = NULL; |
814 | ||
7fc1f831 AP |
815 | init_rwsem(&lli->lli_xattrs_list_rwsem); |
816 | mutex_init(&lli->lli_xattrs_enq_lock); | |
817 | ||
d7e09d03 PT |
818 | LASSERT(lli->lli_vfs_inode.i_mode != 0); |
819 | if (S_ISDIR(lli->lli_vfs_inode.i_mode)) { | |
820 | mutex_init(&lli->lli_readdir_mutex); | |
821 | lli->lli_opendir_key = NULL; | |
822 | lli->lli_sai = NULL; | |
d7e09d03 PT |
823 | spin_lock_init(&lli->lli_sa_lock); |
824 | lli->lli_opendir_pid = 0; | |
825 | } else { | |
47a57bde | 826 | mutex_init(&lli->lli_size_mutex); |
d7e09d03 PT |
827 | lli->lli_symlink_name = NULL; |
828 | init_rwsem(&lli->lli_trunc_sem); | |
829 | mutex_init(&lli->lli_write_mutex); | |
830 | init_rwsem(&lli->lli_glimpse_sem); | |
831 | lli->lli_glimpse_time = 0; | |
832 | INIT_LIST_HEAD(&lli->lli_agl_list); | |
833 | lli->lli_agl_index = 0; | |
834 | lli->lli_async_rc = 0; | |
d7e09d03 PT |
835 | } |
836 | mutex_init(&lli->lli_layout_mutex); | |
837 | } | |
838 | ||
839 | static inline int ll_bdi_register(struct backing_dev_info *bdi) | |
840 | { | |
841 | static atomic_t ll_bdi_num = ATOMIC_INIT(0); | |
842 | ||
843 | bdi->name = "lustre"; | |
844 | return bdi_register(bdi, NULL, "lustre-%d", | |
845 | atomic_inc_return(&ll_bdi_num)); | |
846 | } | |
847 | ||
848 | int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) | |
849 | { | |
850 | struct lustre_profile *lprof = NULL; | |
851 | struct lustre_sb_info *lsi = s2lsi(sb); | |
852 | struct ll_sb_info *sbi; | |
853 | char *dt = NULL, *md = NULL; | |
854 | char *profilenm = get_profile_name(sb); | |
855 | struct config_llog_instance *cfg; | |
d7e09d03 | 856 | int err; |
d7e09d03 PT |
857 | |
858 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb); | |
859 | ||
496a51bd JL |
860 | cfg = kzalloc(sizeof(*cfg), GFP_NOFS); |
861 | if (!cfg) | |
0a3bdb00 | 862 | return -ENOMEM; |
d7e09d03 PT |
863 | |
864 | try_module_get(THIS_MODULE); | |
865 | ||
866 | /* client additional sb info */ | |
fd0d04ba | 867 | lsi->lsi_llsbi = sbi = ll_init_sbi(sb); |
d7e09d03 PT |
868 | if (!sbi) { |
869 | module_put(THIS_MODULE); | |
97903a26 | 870 | kfree(cfg); |
0a3bdb00 | 871 | return -ENOMEM; |
d7e09d03 PT |
872 | } |
873 | ||
874 | err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags); | |
875 | if (err) | |
34e1f2bb | 876 | goto out_free; |
d7e09d03 PT |
877 | |
878 | err = bdi_init(&lsi->lsi_bdi); | |
879 | if (err) | |
34e1f2bb | 880 | goto out_free; |
d7e09d03 | 881 | lsi->lsi_flags |= LSI_BDI_INITIALIZED; |
b4caecd4 | 882 | lsi->lsi_bdi.capabilities = 0; |
d7e09d03 PT |
883 | err = ll_bdi_register(&lsi->lsi_bdi); |
884 | if (err) | |
34e1f2bb | 885 | goto out_free; |
d7e09d03 PT |
886 | |
887 | sb->s_bdi = &lsi->lsi_bdi; | |
3ea8f3bc LS |
888 | /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */ |
889 | sb->s_d_op = &ll_d_ops; | |
d7e09d03 PT |
890 | |
891 | /* Generate a string unique to this super, in case some joker tries | |
892 | to mount the same fs at two mount points. | |
893 | Use the address of the super itself.*/ | |
894 | cfg->cfg_instance = sb; | |
895 | cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid; | |
896 | cfg->cfg_callback = class_config_llog_handler; | |
897 | /* set up client obds */ | |
898 | err = lustre_process_log(sb, profilenm, cfg); | |
899 | if (err < 0) { | |
900 | CERROR("Unable to process log: %d\n", err); | |
34e1f2bb | 901 | goto out_free; |
d7e09d03 PT |
902 | } |
903 | ||
904 | /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */ | |
905 | lprof = class_get_profile(profilenm); | |
6e16818b | 906 | if (!lprof) { |
2d00bd17 JP |
907 | LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS. Does that filesystem exist?\n", |
908 | profilenm); | |
34e1f2bb JL |
909 | err = -EINVAL; |
910 | goto out_free; | |
d7e09d03 PT |
911 | } |
912 | CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm, | |
913 | lprof->lp_md, lprof->lp_dt); | |
914 | ||
95745e9b | 915 | dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance); |
34e1f2bb JL |
916 | if (!dt) { |
917 | err = -ENOMEM; | |
918 | goto out_free; | |
919 | } | |
d7e09d03 | 920 | |
ef2e1a44 | 921 | md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_md, cfg->cfg_instance); |
34e1f2bb JL |
922 | if (!md) { |
923 | err = -ENOMEM; | |
924 | goto out_free; | |
925 | } | |
d7e09d03 PT |
926 | |
927 | /* connections, registrations, sb setup */ | |
928 | err = client_common_fill_super(sb, md, dt, mnt); | |
929 | ||
930 | out_free: | |
0550db92 | 931 | kfree(md); |
932 | kfree(dt); | |
d7e09d03 PT |
933 | if (err) |
934 | ll_put_super(sb); | |
935 | else if (sbi->ll_flags & LL_SBI_VERBOSE) | |
936 | LCONSOLE_WARN("Mounted %s\n", profilenm); | |
937 | ||
97903a26 | 938 | kfree(cfg); |
0a3bdb00 | 939 | return err; |
d7e09d03 PT |
940 | } /* ll_fill_super */ |
941 | ||
d7e09d03 PT |
942 | void ll_put_super(struct super_block *sb) |
943 | { | |
7d4bae45 | 944 | struct config_llog_instance cfg, params_cfg; |
d7e09d03 PT |
945 | struct obd_device *obd; |
946 | struct lustre_sb_info *lsi = s2lsi(sb); | |
947 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
948 | char *profilenm = get_profile_name(sb); | |
c52f69c5 | 949 | int next, force = 1; |
d7e09d03 PT |
950 | |
951 | CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm); | |
952 | ||
d7e09d03 PT |
953 | cfg.cfg_instance = sb; |
954 | lustre_end_log(sb, profilenm, &cfg); | |
955 | ||
7d4bae45 AB |
956 | params_cfg.cfg_instance = sb; |
957 | lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg); | |
958 | ||
d7e09d03 PT |
959 | if (sbi->ll_md_exp) { |
960 | obd = class_exp2obd(sbi->ll_md_exp); | |
961 | if (obd) | |
962 | force = obd->obd_force; | |
963 | } | |
964 | ||
d7e09d03 PT |
965 | /* We need to set force before the lov_disconnect in |
966 | lustre_common_put_super, since l_d cleans up osc's as well. */ | |
967 | if (force) { | |
968 | next = 0; | |
969 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, | |
970 | &next)) != NULL) { | |
971 | obd->obd_force = force; | |
972 | } | |
973 | } | |
974 | ||
975 | if (sbi->ll_lcq) { | |
976 | /* Only if client_common_fill_super succeeded */ | |
977 | client_common_put_super(sb); | |
978 | } | |
979 | ||
980 | next = 0; | |
a15dbf99 | 981 | while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next))) |
d7e09d03 | 982 | class_manual_cleanup(obd); |
d7e09d03 PT |
983 | |
984 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
985 | LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : ""); | |
986 | ||
987 | if (profilenm) | |
988 | class_del_profile(profilenm); | |
989 | ||
990 | if (lsi->lsi_flags & LSI_BDI_INITIALIZED) { | |
991 | bdi_destroy(&lsi->lsi_bdi); | |
992 | lsi->lsi_flags &= ~LSI_BDI_INITIALIZED; | |
993 | } | |
994 | ||
995 | ll_free_sbi(sb); | |
996 | lsi->lsi_llsbi = NULL; | |
997 | ||
998 | lustre_common_put_super(sb); | |
999 | ||
1000 | module_put(THIS_MODULE); | |
d7e09d03 PT |
1001 | } /* client_put_super */ |
1002 | ||
1003 | struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock) | |
1004 | { | |
1005 | struct inode *inode = NULL; | |
1006 | ||
1007 | /* NOTE: we depend on atomic igrab() -bzzz */ | |
1008 | lock_res_and_lock(lock); | |
1009 | if (lock->l_resource->lr_lvb_inode) { | |
aff9d8e8 | 1010 | struct ll_inode_info *lli; |
cf29a7b6 | 1011 | |
d7e09d03 PT |
1012 | lli = ll_i2info(lock->l_resource->lr_lvb_inode); |
1013 | if (lli->lli_inode_magic == LLI_INODE_MAGIC) { | |
1014 | inode = igrab(lock->l_resource->lr_lvb_inode); | |
1015 | } else { | |
1016 | inode = lock->l_resource->lr_lvb_inode; | |
1017 | LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO : | |
2d00bd17 | 1018 | D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x", |
d7e09d03 PT |
1019 | lock->l_resource->lr_lvb_inode, |
1020 | lli->lli_inode_magic); | |
1021 | inode = NULL; | |
1022 | } | |
1023 | } | |
1024 | unlock_res_and_lock(lock); | |
1025 | return inode; | |
1026 | } | |
1027 | ||
d7e09d03 PT |
1028 | void ll_clear_inode(struct inode *inode) |
1029 | { | |
1030 | struct ll_inode_info *lli = ll_i2info(inode); | |
1031 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
d7e09d03 PT |
1032 | |
1033 | CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, | |
1034 | inode->i_generation, inode); | |
1035 | ||
1036 | if (S_ISDIR(inode->i_mode)) { | |
1037 | /* these should have been cleared in ll_file_release */ | |
6e16818b OD |
1038 | LASSERT(!lli->lli_opendir_key); |
1039 | LASSERT(!lli->lli_sai); | |
d7e09d03 PT |
1040 | LASSERT(lli->lli_opendir_pid == 0); |
1041 | } | |
1042 | ||
ae5ef67b | 1043 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1044 | ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1045 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1046 | md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode)); |
1047 | ||
1048 | LASSERT(!lli->lli_open_fd_write_count); | |
1049 | LASSERT(!lli->lli_open_fd_read_count); | |
1050 | LASSERT(!lli->lli_open_fd_exec_count); | |
1051 | ||
1052 | if (lli->lli_mds_write_och) | |
1053 | ll_md_real_close(inode, FMODE_WRITE); | |
1054 | if (lli->lli_mds_exec_och) | |
1055 | ll_md_real_close(inode, FMODE_EXEC); | |
1056 | if (lli->lli_mds_read_och) | |
1057 | ll_md_real_close(inode, FMODE_READ); | |
1058 | ||
a5cb8880 | 1059 | if (S_ISLNK(inode->i_mode)) { |
97903a26 | 1060 | kfree(lli->lli_symlink_name); |
d7e09d03 PT |
1061 | lli->lli_symlink_name = NULL; |
1062 | } | |
1063 | ||
7fc1f831 AP |
1064 | ll_xattr_cache_destroy(inode); |
1065 | ||
d7e09d03 | 1066 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { |
6e16818b | 1067 | LASSERT(!lli->lli_posix_acl); |
d7e09d03 PT |
1068 | if (lli->lli_remote_perms) { |
1069 | free_rmtperm_hash(lli->lli_remote_perms); | |
1070 | lli->lli_remote_perms = NULL; | |
1071 | } | |
1072 | } | |
1073 | #ifdef CONFIG_FS_POSIX_ACL | |
1074 | else if (lli->lli_posix_acl) { | |
1075 | LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); | |
6e16818b | 1076 | LASSERT(!lli->lli_remote_perms); |
d7e09d03 PT |
1077 | posix_acl_release(lli->lli_posix_acl); |
1078 | lli->lli_posix_acl = NULL; | |
1079 | } | |
1080 | #endif | |
1081 | lli->lli_inode_magic = LLI_INODE_DEAD; | |
1082 | ||
d7e09d03 PT |
1083 | if (!S_ISDIR(inode->i_mode)) |
1084 | LASSERT(list_empty(&lli->lli_agl_list)); | |
1085 | ||
1086 | /* | |
1087 | * XXX This has to be done before lsm is freed below, because | |
1088 | * cl_object still uses inode lsm. | |
1089 | */ | |
1090 | cl_inode_fini(inode); | |
1091 | lli->lli_has_smd = false; | |
d7e09d03 PT |
1092 | } |
1093 | ||
b81f9b6d OD |
1094 | #define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET) |
1095 | ||
3d3ab8cc | 1096 | static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data, |
d7e09d03 PT |
1097 | struct md_open_data **mod) |
1098 | { | |
1099 | struct lustre_md md; | |
2b0143b5 | 1100 | struct inode *inode = d_inode(dentry); |
d7e09d03 PT |
1101 | struct ll_sb_info *sbi = ll_i2sbi(inode); |
1102 | struct ptlrpc_request *request = NULL; | |
1103 | int rc, ia_valid; | |
d7e09d03 PT |
1104 | |
1105 | op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, | |
1106 | LUSTRE_OPC_ANY, NULL); | |
1107 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1108 | return PTR_ERR(op_data); |
d7e09d03 PT |
1109 | |
1110 | rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, | |
1111 | &request, mod); | |
1112 | if (rc) { | |
1113 | ptlrpc_req_finished(request); | |
1114 | if (rc == -ENOENT) { | |
1115 | clear_nlink(inode); | |
1116 | /* Unlinked special device node? Or just a race? | |
1117 | * Pretend we done everything. */ | |
1118 | if (!S_ISREG(inode->i_mode) && | |
1119 | !S_ISDIR(inode->i_mode)) { | |
1120 | ia_valid = op_data->op_attr.ia_valid; | |
1121 | op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS; | |
1122 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1123 | op_data->op_attr.ia_valid = ia_valid; | |
1124 | } | |
1125 | } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) { | |
1126 | CERROR("md_setattr fails: rc = %d\n", rc); | |
1127 | } | |
0a3bdb00 | 1128 | return rc; |
d7e09d03 PT |
1129 | } |
1130 | ||
1131 | rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp, | |
1132 | sbi->ll_md_exp, &md); | |
1133 | if (rc) { | |
1134 | ptlrpc_req_finished(request); | |
0a3bdb00 | 1135 | return rc; |
d7e09d03 PT |
1136 | } |
1137 | ||
251c4317 | 1138 | ia_valid = op_data->op_attr.ia_valid; |
ef2e0f55 | 1139 | /* inode size will be in cl_setattr_ost, can't do it now since dirty |
251c4317 JH |
1140 | * cache is not cleared yet. */ |
1141 | op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE); | |
1142 | rc = simple_setattr(dentry, &op_data->op_attr); | |
1143 | op_data->op_attr.ia_valid = ia_valid; | |
1144 | ||
d7e09d03 PT |
1145 | /* Extract epoch data if obtained. */ |
1146 | op_data->op_handle = md.body->handle; | |
1147 | op_data->op_ioepoch = md.body->ioepoch; | |
1148 | ||
1149 | ll_update_inode(inode, &md); | |
1150 | ptlrpc_req_finished(request); | |
1151 | ||
0a3bdb00 | 1152 | return rc; |
d7e09d03 PT |
1153 | } |
1154 | ||
1155 | /* Close IO epoch and send Size-on-MDS attribute update. */ | |
1156 | static int ll_setattr_done_writing(struct inode *inode, | |
1157 | struct md_op_data *op_data, | |
1158 | struct md_open_data *mod) | |
1159 | { | |
1160 | struct ll_inode_info *lli = ll_i2info(inode); | |
1161 | int rc = 0; | |
d7e09d03 | 1162 | |
d7e09d03 | 1163 | if (!S_ISREG(inode->i_mode)) |
0a3bdb00 | 1164 | return 0; |
d7e09d03 | 1165 | |
b0f5aad5 | 1166 | CDEBUG(D_INODE, "Epoch %llu closed on "DFID" for truncate\n", |
d7e09d03 PT |
1167 | op_data->op_ioepoch, PFID(&lli->lli_fid)); |
1168 | ||
1169 | op_data->op_flags = MF_EPOCH_CLOSE; | |
1170 | ll_done_writing_attr(inode, op_data); | |
1171 | ll_pack_inode2opdata(inode, op_data, NULL); | |
1172 | ||
1173 | rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod); | |
9d927bc5 | 1174 | if (rc == -EAGAIN) |
d7e09d03 PT |
1175 | /* MDS has instructed us to obtain Size-on-MDS attribute |
1176 | * from OSTs and send setattr to back to MDS. */ | |
1177 | rc = ll_som_update(inode, op_data); | |
9d927bc5 | 1178 | else if (rc) |
d7e09d03 PT |
1179 | CERROR("inode %lu mdc truncate failed: rc = %d\n", |
1180 | inode->i_ino, rc); | |
0a3bdb00 | 1181 | return rc; |
d7e09d03 PT |
1182 | } |
1183 | ||
d7e09d03 PT |
1184 | /* If this inode has objects allocated to it (lsm != NULL), then the OST |
1185 | * object(s) determine the file size and mtime. Otherwise, the MDS will | |
1186 | * keep these values until such a time that objects are allocated for it. | |
1187 | * We do the MDS operations first, as it is checking permissions for us. | |
1188 | * We don't to the MDS RPC if there is nothing that we want to store there, | |
1189 | * otherwise there is no harm in updating mtime/atime on the MDS if we are | |
1190 | * going to do an RPC anyways. | |
1191 | * | |
1192 | * If we are doing a truncate, we will send the mtime and ctime updates | |
1193 | * to the OST with the punch RPC, otherwise we do an explicit setattr RPC. | |
1194 | * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE | |
1195 | * at the same time. | |
a720b790 JL |
1196 | * |
1197 | * In case of HSMimport, we only set attr on MDS. | |
d7e09d03 | 1198 | */ |
a720b790 | 1199 | int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) |
d7e09d03 | 1200 | { |
2b0143b5 | 1201 | struct inode *inode = d_inode(dentry); |
d7e09d03 PT |
1202 | struct ll_inode_info *lli = ll_i2info(inode); |
1203 | struct md_op_data *op_data = NULL; | |
1204 | struct md_open_data *mod = NULL; | |
5ea17d6c | 1205 | bool file_is_released = false; |
d7e09d03 | 1206 | int rc = 0, rc1 = 0; |
d7e09d03 | 1207 | |
a720b790 JL |
1208 | CDEBUG(D_VFSTRACE, |
1209 | "%s: setattr inode %p/fid:"DFID | |
1210 | " from %llu to %llu, valid %x, hsm_import %d\n", | |
1211 | ll_get_fsname(inode->i_sb, NULL, 0), inode, | |
d7e09d03 | 1212 | PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size, |
a720b790 | 1213 | attr->ia_valid, hsm_import); |
d7e09d03 PT |
1214 | |
1215 | if (attr->ia_valid & ATTR_SIZE) { | |
1216 | /* Check new size against VFS/VM file size limit and rlimit */ | |
1217 | rc = inode_newsize_ok(inode, attr->ia_size); | |
1218 | if (rc) | |
0a3bdb00 | 1219 | return rc; |
d7e09d03 PT |
1220 | |
1221 | /* The maximum Lustre file size is variable, based on the | |
1222 | * OST maximum object size and number of stripes. This | |
1223 | * needs another check in addition to the VFS check above. */ | |
1224 | if (attr->ia_size > ll_file_maxbytes(inode)) { | |
1d8cb70c | 1225 | CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n", |
d7e09d03 PT |
1226 | PFID(&lli->lli_fid), attr->ia_size, |
1227 | ll_file_maxbytes(inode)); | |
0a3bdb00 | 1228 | return -EFBIG; |
d7e09d03 PT |
1229 | } |
1230 | ||
1231 | attr->ia_valid |= ATTR_MTIME | ATTR_CTIME; | |
1232 | } | |
1233 | ||
1234 | /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */ | |
1235 | if (attr->ia_valid & TIMES_SET_FLAGS) { | |
4b1a25f0 | 1236 | if ((!uid_eq(current_fsuid(), inode->i_uid)) && |
2eb90a75 | 1237 | !capable(CFS_CAP_FOWNER)) |
0a3bdb00 | 1238 | return -EPERM; |
d7e09d03 PT |
1239 | } |
1240 | ||
1241 | /* We mark all of the fields "set" so MDS/OST does not re-set them */ | |
1242 | if (attr->ia_valid & ATTR_CTIME) { | |
0f1c743b | 1243 | attr->ia_ctime = CURRENT_TIME; |
d7e09d03 PT |
1244 | attr->ia_valid |= ATTR_CTIME_SET; |
1245 | } | |
1246 | if (!(attr->ia_valid & ATTR_ATIME_SET) && | |
1247 | (attr->ia_valid & ATTR_ATIME)) { | |
0f1c743b | 1248 | attr->ia_atime = CURRENT_TIME; |
d7e09d03 PT |
1249 | attr->ia_valid |= ATTR_ATIME_SET; |
1250 | } | |
1251 | if (!(attr->ia_valid & ATTR_MTIME_SET) && | |
1252 | (attr->ia_valid & ATTR_MTIME)) { | |
0f1c743b | 1253 | attr->ia_mtime = CURRENT_TIME; |
d7e09d03 PT |
1254 | attr->ia_valid |= ATTR_MTIME_SET; |
1255 | } | |
1256 | ||
1257 | if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME)) | |
8d7eed54 | 1258 | CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %llu\n", |
d7e09d03 | 1259 | LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), |
8d7eed54 | 1260 | (s64)ktime_get_real_seconds()); |
d7e09d03 PT |
1261 | |
1262 | /* If we are changing file size, file content is modified, flag it. */ | |
1263 | if (attr->ia_valid & ATTR_SIZE) { | |
1264 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1265 | spin_lock(&lli->lli_lock); | |
1266 | lli->lli_flags |= LLIF_DATA_MODIFIED; | |
1267 | spin_unlock(&lli->lli_lock); | |
1268 | } | |
1269 | ||
1270 | /* We always do an MDS RPC, even if we're only changing the size; | |
1271 | * only the MDS knows whether truncate() should fail with -ETXTBUSY */ | |
1272 | ||
496a51bd JL |
1273 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
1274 | if (!op_data) | |
0a3bdb00 | 1275 | return -ENOMEM; |
d7e09d03 | 1276 | |
81e053c7 | 1277 | if (!S_ISDIR(inode->i_mode)) |
5955102c | 1278 | inode_unlock(inode); |
d7e09d03 PT |
1279 | |
1280 | memcpy(&op_data->op_attr, attr, sizeof(*attr)); | |
1281 | ||
1282 | /* Open epoch for truncate. */ | |
1283 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1284 | (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) | |
1285 | op_data->op_flags = MF_EPOCH_OPEN; | |
1286 | ||
5ea17d6c JL |
1287 | /* truncate on a released file must failed with -ENODATA, |
1288 | * so size must not be set on MDS for released file | |
1289 | * but other attributes must be set | |
1290 | */ | |
1291 | if (S_ISREG(inode->i_mode)) { | |
1292 | struct lov_stripe_md *lsm; | |
1293 | __u32 gen; | |
1294 | ||
1295 | ll_layout_refresh(inode, &gen); | |
1296 | lsm = ccc_inode_lsm_get(inode); | |
1297 | if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED) | |
1298 | file_is_released = true; | |
1299 | ccc_inode_lsm_put(inode, lsm); | |
1300 | } | |
1301 | ||
a720b790 | 1302 | /* if not in HSM import mode, clear size attr for released file |
5ea17d6c JL |
1303 | * we clear the attribute send to MDT in op_data, not the original |
1304 | * received from caller in attr which is used later to | |
1305 | * decide return code */ | |
a720b790 | 1306 | if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import) |
5ea17d6c JL |
1307 | op_data->op_attr.ia_valid &= ~ATTR_SIZE; |
1308 | ||
d7e09d03 PT |
1309 | rc = ll_md_setattr(dentry, op_data, &mod); |
1310 | if (rc) | |
34e1f2bb | 1311 | goto out; |
d7e09d03 | 1312 | |
a720b790 | 1313 | /* truncate failed (only when non HSM import), others succeed */ |
5ea17d6c | 1314 | if (file_is_released) { |
a720b790 | 1315 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
34e1f2bb | 1316 | rc = -ENODATA; |
5ea17d6c | 1317 | else |
34e1f2bb JL |
1318 | rc = 0; |
1319 | goto out; | |
5ea17d6c JL |
1320 | } |
1321 | ||
d7e09d03 PT |
1322 | /* RPC to MDT is sent, cancel data modification flag */ |
1323 | if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) { | |
1324 | spin_lock(&lli->lli_lock); | |
1325 | lli->lli_flags &= ~LLIF_DATA_MODIFIED; | |
1326 | spin_unlock(&lli->lli_lock); | |
1327 | } | |
1328 | ||
1329 | ll_ioepoch_open(lli, op_data->op_ioepoch); | |
34e1f2bb JL |
1330 | if (!S_ISREG(inode->i_mode)) { |
1331 | rc = 0; | |
1332 | goto out; | |
1333 | } | |
d7e09d03 PT |
1334 | |
1335 | if (attr->ia_valid & (ATTR_SIZE | | |
1336 | ATTR_ATIME | ATTR_ATIME_SET | | |
53bd4a00 | 1337 | ATTR_MTIME | ATTR_MTIME_SET)) { |
d7e09d03 PT |
1338 | /* For truncate and utimes sending attributes to OSTs, setting |
1339 | * mtime/atime to the past will be performed under PW [0:EOF] | |
1340 | * extent lock (new_size:EOF for truncate). It may seem | |
1341 | * excessive to send mtime/atime updates to OSTs when not | |
1342 | * setting times to past, but it is necessary due to possible | |
1343 | * time de-synchronization between MDT inode and OST objects */ | |
178ba1e0 BJ |
1344 | if (attr->ia_valid & ATTR_SIZE) |
1345 | down_write(&lli->lli_trunc_sem); | |
ef2e0f55 | 1346 | rc = cl_setattr_ost(inode, attr); |
178ba1e0 BJ |
1347 | if (attr->ia_valid & ATTR_SIZE) |
1348 | up_write(&lli->lli_trunc_sem); | |
53bd4a00 | 1349 | } |
d7e09d03 | 1350 | out: |
83d6b8fe SB |
1351 | if (op_data->op_ioepoch) { |
1352 | rc1 = ll_setattr_done_writing(inode, op_data, mod); | |
1353 | if (!rc) | |
1354 | rc = rc1; | |
d7e09d03 | 1355 | } |
83d6b8fe SB |
1356 | ll_finish_md_op_data(op_data); |
1357 | ||
d7e09d03 | 1358 | if (!S_ISDIR(inode->i_mode)) { |
5955102c | 1359 | inode_lock(inode); |
a720b790 | 1360 | if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) |
d7e09d03 PT |
1361 | inode_dio_wait(inode); |
1362 | } | |
1363 | ||
1364 | ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ? | |
1365 | LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1); | |
1366 | ||
251c4317 | 1367 | return rc; |
d7e09d03 PT |
1368 | } |
1369 | ||
1370 | int ll_setattr(struct dentry *de, struct iattr *attr) | |
1371 | { | |
2b0143b5 | 1372 | int mode = d_inode(de)->i_mode; |
d7e09d03 PT |
1373 | |
1374 | if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) == | |
1375 | (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) | |
1376 | attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; | |
1377 | ||
1378 | if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) == | |
1379 | (ATTR_SIZE|ATTR_MODE)) && | |
1380 | (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) || | |
1381 | (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
1382 | !(attr->ia_mode & S_ISGID)))) | |
1383 | attr->ia_valid |= ATTR_FORCE; | |
1384 | ||
98639249 NC |
1385 | if ((attr->ia_valid & ATTR_MODE) && |
1386 | (mode & S_ISUID) && | |
d7e09d03 PT |
1387 | !(attr->ia_mode & S_ISUID) && |
1388 | !(attr->ia_valid & ATTR_KILL_SUID)) | |
1389 | attr->ia_valid |= ATTR_KILL_SUID; | |
1390 | ||
98639249 NC |
1391 | if ((attr->ia_valid & ATTR_MODE) && |
1392 | ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && | |
d7e09d03 PT |
1393 | !(attr->ia_mode & S_ISGID) && |
1394 | !(attr->ia_valid & ATTR_KILL_SGID)) | |
1395 | attr->ia_valid |= ATTR_KILL_SGID; | |
1396 | ||
a720b790 | 1397 | return ll_setattr_raw(de, attr, false); |
d7e09d03 PT |
1398 | } |
1399 | ||
1400 | int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, | |
1401 | __u64 max_age, __u32 flags) | |
1402 | { | |
1403 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1404 | struct obd_statfs obd_osfs; | |
1405 | int rc; | |
d7e09d03 PT |
1406 | |
1407 | rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags); | |
1408 | if (rc) { | |
1409 | CERROR("md_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1410 | return rc; |
d7e09d03 PT |
1411 | } |
1412 | ||
1413 | osfs->os_type = sb->s_magic; | |
1414 | ||
b0f5aad5 | 1415 | CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n", |
1d8cb70c GD |
1416 | osfs->os_bavail, osfs->os_blocks, osfs->os_ffree, |
1417 | osfs->os_files); | |
d7e09d03 PT |
1418 | |
1419 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
1420 | flags |= OBD_STATFS_NODELAY; | |
1421 | ||
1422 | rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags); | |
1423 | if (rc) { | |
1424 | CERROR("obd_statfs fails: rc = %d\n", rc); | |
0a3bdb00 | 1425 | return rc; |
d7e09d03 PT |
1426 | } |
1427 | ||
b0f5aad5 | 1428 | CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n", |
d7e09d03 PT |
1429 | obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree, |
1430 | obd_osfs.os_files); | |
1431 | ||
1432 | osfs->os_bsize = obd_osfs.os_bsize; | |
1433 | osfs->os_blocks = obd_osfs.os_blocks; | |
1434 | osfs->os_bfree = obd_osfs.os_bfree; | |
1435 | osfs->os_bavail = obd_osfs.os_bavail; | |
1436 | ||
1437 | /* If we don't have as many objects free on the OST as inodes | |
1438 | * on the MDS, we reduce the total number of inodes to | |
1439 | * compensate, so that the "inodes in use" number is correct. | |
1440 | */ | |
1441 | if (obd_osfs.os_ffree < osfs->os_ffree) { | |
1442 | osfs->os_files = (osfs->os_files - osfs->os_ffree) + | |
1443 | obd_osfs.os_ffree; | |
1444 | osfs->os_ffree = obd_osfs.os_ffree; | |
1445 | } | |
1446 | ||
0a3bdb00 | 1447 | return rc; |
d7e09d03 | 1448 | } |
c9f6bb96 | 1449 | |
d7e09d03 PT |
1450 | int ll_statfs(struct dentry *de, struct kstatfs *sfs) |
1451 | { | |
1452 | struct super_block *sb = de->d_sb; | |
1453 | struct obd_statfs osfs; | |
1454 | int rc; | |
1455 | ||
b0f5aad5 | 1456 | CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64()); |
d7e09d03 PT |
1457 | ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1); |
1458 | ||
1459 | /* Some amount of caching on the client is allowed */ | |
1460 | rc = ll_statfs_internal(sb, &osfs, | |
1461 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
1462 | 0); | |
1463 | if (rc) | |
1464 | return rc; | |
1465 | ||
1466 | statfs_unpack(sfs, &osfs); | |
1467 | ||
1468 | /* We need to downshift for all 32-bit kernels, because we can't | |
1469 | * tell if the kernel is being called via sys_statfs64() or not. | |
1470 | * Stop before overflowing f_bsize - in which case it is better | |
1471 | * to just risk EOVERFLOW if caller is using old sys_statfs(). */ | |
1472 | if (sizeof(long) < 8) { | |
1473 | while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) { | |
1474 | sfs->f_bsize <<= 1; | |
1475 | ||
1476 | osfs.os_blocks >>= 1; | |
1477 | osfs.os_bfree >>= 1; | |
1478 | osfs.os_bavail >>= 1; | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | sfs->f_blocks = osfs.os_blocks; | |
1483 | sfs->f_bfree = osfs.os_bfree; | |
1484 | sfs->f_bavail = osfs.os_bavail; | |
bd994071 | 1485 | sfs->f_fsid = ll_s2sbi(sb)->ll_fsid; |
d7e09d03 PT |
1486 | return 0; |
1487 | } | |
1488 | ||
1489 | void ll_inode_size_lock(struct inode *inode) | |
1490 | { | |
1491 | struct ll_inode_info *lli; | |
1492 | ||
1493 | LASSERT(!S_ISDIR(inode->i_mode)); | |
1494 | ||
1495 | lli = ll_i2info(inode); | |
47a57bde | 1496 | mutex_lock(&lli->lli_size_mutex); |
d7e09d03 PT |
1497 | } |
1498 | ||
1499 | void ll_inode_size_unlock(struct inode *inode) | |
1500 | { | |
1501 | struct ll_inode_info *lli; | |
1502 | ||
1503 | lli = ll_i2info(inode); | |
47a57bde | 1504 | mutex_unlock(&lli->lli_size_mutex); |
d7e09d03 PT |
1505 | } |
1506 | ||
1507 | void ll_update_inode(struct inode *inode, struct lustre_md *md) | |
1508 | { | |
1509 | struct ll_inode_info *lli = ll_i2info(inode); | |
1510 | struct mdt_body *body = md->body; | |
1511 | struct lov_stripe_md *lsm = md->lsm; | |
1512 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1513 | ||
629ecb5b | 1514 | LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0)); |
6e16818b | 1515 | if (lsm) { |
d7e09d03 PT |
1516 | if (!lli->lli_has_smd && |
1517 | !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) | |
1518 | cl_file_inode_init(inode, md); | |
1519 | ||
1520 | lli->lli_maxbytes = lsm->lsm_maxbytes; | |
1521 | if (lli->lli_maxbytes > MAX_LFS_FILESIZE) | |
1522 | lli->lli_maxbytes = MAX_LFS_FILESIZE; | |
1523 | } | |
1524 | ||
1525 | if (sbi->ll_flags & LL_SBI_RMT_CLIENT) { | |
1526 | if (body->valid & OBD_MD_FLRMTPERM) | |
1527 | ll_update_remote_perm(inode, md->remote_perm); | |
1528 | } | |
1529 | #ifdef CONFIG_FS_POSIX_ACL | |
1530 | else if (body->valid & OBD_MD_FLACL) { | |
1531 | spin_lock(&lli->lli_lock); | |
1532 | if (lli->lli_posix_acl) | |
1533 | posix_acl_release(lli->lli_posix_acl); | |
1534 | lli->lli_posix_acl = md->posix_acl; | |
1535 | spin_unlock(&lli->lli_lock); | |
1536 | } | |
1537 | #endif | |
c1e2699d | 1538 | inode->i_ino = cl_fid_build_ino(&body->fid1, |
1539 | sbi->ll_flags & LL_SBI_32BIT_API); | |
d7e09d03 PT |
1540 | inode->i_generation = cl_fid_build_gen(&body->fid1); |
1541 | ||
1542 | if (body->valid & OBD_MD_FLATIME) { | |
1543 | if (body->atime > LTIME_S(inode->i_atime)) | |
1544 | LTIME_S(inode->i_atime) = body->atime; | |
1545 | lli->lli_lvb.lvb_atime = body->atime; | |
1546 | } | |
1547 | if (body->valid & OBD_MD_FLMTIME) { | |
1548 | if (body->mtime > LTIME_S(inode->i_mtime)) { | |
b0f5aad5 GKH |
1549 | CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n", |
1550 | inode->i_ino, LTIME_S(inode->i_mtime), | |
1551 | body->mtime); | |
d7e09d03 PT |
1552 | LTIME_S(inode->i_mtime) = body->mtime; |
1553 | } | |
1554 | lli->lli_lvb.lvb_mtime = body->mtime; | |
1555 | } | |
1556 | if (body->valid & OBD_MD_FLCTIME) { | |
1557 | if (body->ctime > LTIME_S(inode->i_ctime)) | |
1558 | LTIME_S(inode->i_ctime) = body->ctime; | |
1559 | lli->lli_lvb.lvb_ctime = body->ctime; | |
1560 | } | |
1561 | if (body->valid & OBD_MD_FLMODE) | |
1562 | inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT); | |
1563 | if (body->valid & OBD_MD_FLTYPE) | |
1564 | inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT); | |
1565 | LASSERT(inode->i_mode != 0); | |
566be54d | 1566 | if (S_ISREG(inode->i_mode)) |
e6768831 TJ |
1567 | inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, |
1568 | LL_MAX_BLKSIZE_BITS); | |
566be54d | 1569 | else |
d7e09d03 | 1570 | inode->i_blkbits = inode->i_sb->s_blocksize_bits; |
d7e09d03 | 1571 | if (body->valid & OBD_MD_FLUID) |
4b1a25f0 | 1572 | inode->i_uid = make_kuid(&init_user_ns, body->uid); |
d7e09d03 | 1573 | if (body->valid & OBD_MD_FLGID) |
4b1a25f0 | 1574 | inode->i_gid = make_kgid(&init_user_ns, body->gid); |
d7e09d03 PT |
1575 | if (body->valid & OBD_MD_FLFLAGS) |
1576 | inode->i_flags = ll_ext_to_inode_flags(body->flags); | |
1577 | if (body->valid & OBD_MD_FLNLINK) | |
1578 | set_nlink(inode, body->nlink); | |
1579 | if (body->valid & OBD_MD_FLRDEV) | |
1580 | inode->i_rdev = old_decode_dev(body->rdev); | |
1581 | ||
1582 | if (body->valid & OBD_MD_FLID) { | |
1583 | /* FID shouldn't be changed! */ | |
1584 | if (fid_is_sane(&lli->lli_fid)) { | |
1585 | LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1), | |
1586 | "Trying to change FID "DFID | |
1587 | " to the "DFID", inode %lu/%u(%p)\n", | |
1588 | PFID(&lli->lli_fid), PFID(&body->fid1), | |
1589 | inode->i_ino, inode->i_generation, inode); | |
1590 | } else | |
1591 | lli->lli_fid = body->fid1; | |
1592 | } | |
1593 | ||
1594 | LASSERT(fid_seq(&lli->lli_fid) != 0); | |
1595 | ||
1596 | if (body->valid & OBD_MD_FLSIZE) { | |
1597 | if (exp_connect_som(ll_i2mdexp(inode)) && | |
1598 | S_ISREG(inode->i_mode)) { | |
1599 | struct lustre_handle lockh; | |
52ee0d20 | 1600 | enum ldlm_mode mode; |
d7e09d03 PT |
1601 | |
1602 | /* As it is possible a blocking ast has been processed | |
1603 | * by this time, we need to check there is an UPDATE | |
1604 | * lock on the client and set LLIF_MDS_SIZE_LOCK holding | |
1605 | * it. */ | |
1606 | mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE, | |
7fc1f831 AP |
1607 | &lockh, LDLM_FL_CBPENDING, |
1608 | LCK_CR | LCK_CW | | |
1609 | LCK_PR | LCK_PW); | |
d7e09d03 PT |
1610 | if (mode) { |
1611 | if (lli->lli_flags & (LLIF_DONE_WRITING | | |
1612 | LLIF_EPOCH_PENDING | | |
1613 | LLIF_SOM_DIRTY)) { | |
2d00bd17 | 1614 | CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n", |
d7e09d03 PT |
1615 | inode->i_ino, lli->lli_flags); |
1616 | } else { | |
1617 | /* Use old size assignment to avoid | |
1618 | * deadlock bz14138 & bz14326 */ | |
1619 | i_size_write(inode, body->size); | |
ae5ef67b | 1620 | spin_lock(&lli->lli_lock); |
d7e09d03 | 1621 | lli->lli_flags |= LLIF_MDS_SIZE_LOCK; |
ae5ef67b | 1622 | spin_unlock(&lli->lli_lock); |
d7e09d03 PT |
1623 | } |
1624 | ldlm_lock_decref(&lockh, mode); | |
1625 | } | |
1626 | } else { | |
1627 | /* Use old size assignment to avoid | |
1628 | * deadlock bz14138 & bz14326 */ | |
1629 | i_size_write(inode, body->size); | |
1630 | ||
1631 | CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n", | |
1632 | inode->i_ino, (unsigned long long)body->size); | |
1633 | } | |
1634 | ||
1635 | if (body->valid & OBD_MD_FLBLOCKS) | |
1636 | inode->i_blocks = body->blocks; | |
1637 | } | |
1638 | ||
5ea17d6c JL |
1639 | if (body->valid & OBD_MD_TSTATE) { |
1640 | if (body->t_state & MS_RESTORE) | |
1641 | lli->lli_flags |= LLIF_FILE_RESTORING; | |
1642 | } | |
d7e09d03 PT |
1643 | } |
1644 | ||
1645 | void ll_read_inode2(struct inode *inode, void *opaque) | |
1646 | { | |
1647 | struct lustre_md *md = opaque; | |
1648 | struct ll_inode_info *lli = ll_i2info(inode); | |
d7e09d03 PT |
1649 | |
1650 | CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", | |
1651 | PFID(&lli->lli_fid), inode); | |
1652 | ||
1653 | LASSERT(!lli->lli_has_smd); | |
1654 | ||
1655 | /* Core attributes from the MDS first. This is a new inode, and | |
1656 | * the VFS doesn't zero times in the core inode so we have to do | |
1657 | * it ourselves. They will be overwritten by either MDS or OST | |
1658 | * attributes - we just need to make sure they aren't newer. */ | |
1659 | LTIME_S(inode->i_mtime) = 0; | |
1660 | LTIME_S(inode->i_atime) = 0; | |
1661 | LTIME_S(inode->i_ctime) = 0; | |
1662 | inode->i_rdev = 0; | |
1663 | ll_update_inode(inode, md); | |
1664 | ||
1665 | /* OIDEBUG(inode); */ | |
1666 | ||
d7e09d03 PT |
1667 | if (S_ISREG(inode->i_mode)) { |
1668 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
cf29a7b6 | 1669 | |
d7e09d03 PT |
1670 | inode->i_op = &ll_file_inode_operations; |
1671 | inode->i_fop = sbi->ll_fop; | |
1672 | inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops; | |
d7e09d03 PT |
1673 | } else if (S_ISDIR(inode->i_mode)) { |
1674 | inode->i_op = &ll_dir_inode_operations; | |
1675 | inode->i_fop = &ll_dir_operations; | |
d7e09d03 PT |
1676 | } else if (S_ISLNK(inode->i_mode)) { |
1677 | inode->i_op = &ll_fast_symlink_inode_operations; | |
d7e09d03 PT |
1678 | } else { |
1679 | inode->i_op = &ll_special_inode_operations; | |
1680 | ||
1681 | init_special_inode(inode, inode->i_mode, | |
1682 | inode->i_rdev); | |
d7e09d03 PT |
1683 | } |
1684 | } | |
1685 | ||
1686 | void ll_delete_inode(struct inode *inode) | |
1687 | { | |
1688 | struct cl_inode_info *lli = cl_i2info(inode); | |
d7e09d03 | 1689 | |
6e16818b | 1690 | if (S_ISREG(inode->i_mode) && lli->lli_clob) |
d7e09d03 PT |
1691 | /* discard all dirty pages before truncating them, required by |
1692 | * osc_extent implementation at LU-1030. */ | |
65fb55d1 NY |
1693 | cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, |
1694 | CL_FSYNC_DISCARD, 1); | |
d7e09d03 | 1695 | |
91b0abe3 | 1696 | truncate_inode_pages_final(&inode->i_data); |
d7e09d03 PT |
1697 | |
1698 | /* Workaround for LU-118 */ | |
1699 | if (inode->i_data.nrpages) { | |
c4226c54 VT |
1700 | spin_lock_irq(&inode->i_data.tree_lock); |
1701 | spin_unlock_irq(&inode->i_data.tree_lock); | |
d7e09d03 | 1702 | LASSERTF(inode->i_data.nrpages == 0, |
2d00bd17 | 1703 | "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", |
d7e09d03 PT |
1704 | inode->i_ino, inode->i_generation, inode, |
1705 | inode->i_data.nrpages); | |
1706 | } | |
1707 | /* Workaround end */ | |
1708 | ||
1709 | ll_clear_inode(inode); | |
1710 | clear_inode(inode); | |
d7e09d03 PT |
1711 | } |
1712 | ||
1713 | int ll_iocontrol(struct inode *inode, struct file *file, | |
1714 | unsigned int cmd, unsigned long arg) | |
1715 | { | |
1716 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1717 | struct ptlrpc_request *req = NULL; | |
1718 | int rc, flags = 0; | |
d7e09d03 | 1719 | |
a58a38ac | 1720 | switch (cmd) { |
d7e09d03 PT |
1721 | case FSFILT_IOC_GETFLAGS: { |
1722 | struct mdt_body *body; | |
1723 | struct md_op_data *op_data; | |
1724 | ||
1725 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, | |
1726 | 0, 0, LUSTRE_OPC_ANY, | |
1727 | NULL); | |
1728 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1729 | return PTR_ERR(op_data); |
d7e09d03 PT |
1730 | |
1731 | op_data->op_valid = OBD_MD_FLFLAGS; | |
1732 | rc = md_getattr(sbi->ll_md_exp, op_data, &req); | |
1733 | ll_finish_md_op_data(op_data); | |
1734 | if (rc) { | |
1735 | CERROR("failure %d inode %lu\n", rc, inode->i_ino); | |
0a3bdb00 | 1736 | return -abs(rc); |
d7e09d03 PT |
1737 | } |
1738 | ||
1739 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
1740 | ||
1741 | flags = body->flags; | |
1742 | ||
1743 | ptlrpc_req_finished(req); | |
1744 | ||
7ac5db21 | 1745 | return put_user(flags, (int __user *)arg); |
d7e09d03 PT |
1746 | } |
1747 | case FSFILT_IOC_SETFLAGS: { | |
1748 | struct lov_stripe_md *lsm; | |
45efd655 | 1749 | struct obd_info oinfo = { }; |
d7e09d03 PT |
1750 | struct md_op_data *op_data; |
1751 | ||
7ac5db21 | 1752 | if (get_user(flags, (int __user *)arg)) |
0a3bdb00 | 1753 | return -EFAULT; |
d7e09d03 PT |
1754 | |
1755 | op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, | |
1756 | LUSTRE_OPC_ANY, NULL); | |
1757 | if (IS_ERR(op_data)) | |
0a3bdb00 | 1758 | return PTR_ERR(op_data); |
d7e09d03 PT |
1759 | |
1760 | ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags; | |
1761 | op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; | |
1762 | rc = md_setattr(sbi->ll_md_exp, op_data, | |
1763 | NULL, 0, NULL, 0, &req, NULL); | |
1764 | ll_finish_md_op_data(op_data); | |
1765 | ptlrpc_req_finished(req); | |
1766 | if (rc) | |
0a3bdb00 | 1767 | return rc; |
d7e09d03 PT |
1768 | |
1769 | inode->i_flags = ll_ext_to_inode_flags(flags); | |
1770 | ||
1771 | lsm = ccc_inode_lsm_get(inode); | |
5dd16419 JX |
1772 | if (!lsm_has_objects(lsm)) { |
1773 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1774 | return 0; |
5dd16419 | 1775 | } |
d7e09d03 | 1776 | |
131637b8 MR |
1777 | oinfo.oi_oa = kmem_cache_alloc(obdo_cachep, |
1778 | GFP_NOFS | __GFP_ZERO); | |
d7e09d03 PT |
1779 | if (!oinfo.oi_oa) { |
1780 | ccc_inode_lsm_put(inode, lsm); | |
0a3bdb00 | 1781 | return -ENOMEM; |
d7e09d03 PT |
1782 | } |
1783 | oinfo.oi_md = lsm; | |
1784 | oinfo.oi_oa->o_oi = lsm->lsm_oi; | |
1785 | oinfo.oi_oa->o_flags = flags; | |
1786 | oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | | |
1787 | OBD_MD_FLGROUP; | |
d7e09d03 PT |
1788 | obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid); |
1789 | rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL); | |
2ba262fb | 1790 | kmem_cache_free(obdo_cachep, oinfo.oi_oa); |
d7e09d03 PT |
1791 | ccc_inode_lsm_put(inode, lsm); |
1792 | ||
1793 | if (rc && rc != -EPERM && rc != -EACCES) | |
1794 | CERROR("osc_setattr_async fails: rc = %d\n", rc); | |
1795 | ||
0a3bdb00 | 1796 | return rc; |
d7e09d03 PT |
1797 | } |
1798 | default: | |
0a3bdb00 | 1799 | return -ENOSYS; |
d7e09d03 PT |
1800 | } |
1801 | ||
0a3bdb00 | 1802 | return 0; |
d7e09d03 PT |
1803 | } |
1804 | ||
1805 | int ll_flush_ctx(struct inode *inode) | |
1806 | { | |
1807 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
1808 | ||
4b1a25f0 PT |
1809 | CDEBUG(D_SEC, "flush context for user %d\n", |
1810 | from_kuid(&init_user_ns, current_uid())); | |
d7e09d03 PT |
1811 | |
1812 | obd_set_info_async(NULL, sbi->ll_md_exp, | |
1813 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1814 | 0, NULL, NULL); | |
1815 | obd_set_info_async(NULL, sbi->ll_dt_exp, | |
1816 | sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX, | |
1817 | 0, NULL, NULL); | |
1818 | return 0; | |
1819 | } | |
1820 | ||
1821 | /* umount -f client means force down, don't save state */ | |
1822 | void ll_umount_begin(struct super_block *sb) | |
1823 | { | |
1824 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1825 | struct obd_device *obd; | |
1826 | struct obd_ioctl_data *ioc_data; | |
d7e09d03 PT |
1827 | |
1828 | CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb, | |
1829 | sb->s_count, atomic_read(&sb->s_active)); | |
1830 | ||
1831 | obd = class_exp2obd(sbi->ll_md_exp); | |
6e16818b | 1832 | if (!obd) { |
55f5a824 | 1833 | CERROR("Invalid MDC connection handle %#llx\n", |
d7e09d03 | 1834 | sbi->ll_md_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1835 | return; |
1836 | } | |
1837 | obd->obd_force = 1; | |
1838 | ||
1839 | obd = class_exp2obd(sbi->ll_dt_exp); | |
6e16818b | 1840 | if (!obd) { |
55f5a824 | 1841 | CERROR("Invalid LOV connection handle %#llx\n", |
d7e09d03 | 1842 | sbi->ll_dt_exp->exp_handle.h_cookie); |
d7e09d03 PT |
1843 | return; |
1844 | } | |
1845 | obd->obd_force = 1; | |
1846 | ||
496a51bd | 1847 | ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS); |
d7e09d03 PT |
1848 | if (ioc_data) { |
1849 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, | |
ec83e611 | 1850 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 PT |
1851 | |
1852 | obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, | |
ec83e611 | 1853 | sizeof(*ioc_data), ioc_data, NULL); |
d7e09d03 | 1854 | |
97903a26 | 1855 | kfree(ioc_data); |
d7e09d03 PT |
1856 | } |
1857 | ||
d7e09d03 PT |
1858 | /* Really, we'd like to wait until there are no requests outstanding, |
1859 | * and then continue. For now, we just invalidate the requests, | |
1860 | * schedule() and sleep one second if needed, and hope. | |
1861 | */ | |
1862 | schedule(); | |
d7e09d03 PT |
1863 | } |
1864 | ||
1865 | int ll_remount_fs(struct super_block *sb, int *flags, char *data) | |
1866 | { | |
1867 | struct ll_sb_info *sbi = ll_s2sbi(sb); | |
1868 | char *profilenm = get_profile_name(sb); | |
1869 | int err; | |
1870 | __u32 read_only; | |
1871 | ||
1872 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { | |
1873 | read_only = *flags & MS_RDONLY; | |
1874 | err = obd_set_info_async(NULL, sbi->ll_md_exp, | |
1875 | sizeof(KEY_READ_ONLY), | |
1876 | KEY_READ_ONLY, sizeof(read_only), | |
1877 | &read_only, NULL); | |
1878 | if (err) { | |
1879 | LCONSOLE_WARN("Failed to remount %s %s (%d)\n", | |
1880 | profilenm, read_only ? | |
1881 | "read-only" : "read-write", err); | |
1882 | return err; | |
1883 | } | |
1884 | ||
1885 | if (read_only) | |
1886 | sb->s_flags |= MS_RDONLY; | |
1887 | else | |
1888 | sb->s_flags &= ~MS_RDONLY; | |
1889 | ||
1890 | if (sbi->ll_flags & LL_SBI_VERBOSE) | |
1891 | LCONSOLE_WARN("Remounted %s %s\n", profilenm, | |
1892 | read_only ? "read-only" : "read-write"); | |
1893 | } | |
1894 | return 0; | |
1895 | } | |
1896 | ||
44ecac68 FY |
1897 | /** |
1898 | * Cleanup the open handle that is cached on MDT-side. | |
1899 | * | |
1900 | * For open case, the client side open handling thread may hit error | |
1901 | * after the MDT grant the open. Under such case, the client should | |
1902 | * send close RPC to the MDT as cleanup; otherwise, the open handle | |
1903 | * on the MDT will be leaked there until the client umount or evicted. | |
1904 | * | |
1905 | * In further, if someone unlinked the file, because the open handle | |
1906 | * holds the reference on such file/object, then it will block the | |
1907 | * subsequent threads that want to locate such object via FID. | |
1908 | * | |
1909 | * \param[in] sb super block for this file-system | |
1910 | * \param[in] open_req pointer to the original open request | |
1911 | */ | |
1912 | void ll_open_cleanup(struct super_block *sb, struct ptlrpc_request *open_req) | |
1913 | { | |
1914 | struct mdt_body *body; | |
1915 | struct md_op_data *op_data; | |
1916 | struct ptlrpc_request *close_req = NULL; | |
1917 | struct obd_export *exp = ll_s2sbi(sb)->ll_md_exp; | |
1918 | ||
1919 | body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY); | |
af13af52 | 1920 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
44ecac68 FY |
1921 | if (!op_data) { |
1922 | CWARN("%s: cannot allocate op_data to release open handle for " | |
1923 | DFID "\n", | |
1924 | ll_get_fsname(sb, NULL, 0), PFID(&body->fid1)); | |
1925 | ||
1926 | return; | |
1927 | } | |
1928 | ||
1929 | op_data->op_fid1 = body->fid1; | |
1930 | op_data->op_ioepoch = body->ioepoch; | |
1931 | op_data->op_handle = body->handle; | |
1932 | op_data->op_mod_time = get_seconds(); | |
1933 | md_close(exp, op_data, NULL, &close_req); | |
1934 | ptlrpc_req_finished(close_req); | |
1935 | ll_finish_md_op_data(op_data); | |
1936 | } | |
1937 | ||
d7e09d03 PT |
1938 | int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req, |
1939 | struct super_block *sb, struct lookup_intent *it) | |
1940 | { | |
1941 | struct ll_sb_info *sbi = NULL; | |
24af3e16 | 1942 | struct lustre_md md = { NULL }; |
d7e09d03 | 1943 | int rc; |
d7e09d03 PT |
1944 | |
1945 | LASSERT(*inode || sb); | |
1946 | sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode); | |
1947 | rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp, | |
1948 | sbi->ll_md_exp, &md); | |
1949 | if (rc) | |
44ecac68 | 1950 | goto cleanup; |
d7e09d03 PT |
1951 | |
1952 | if (*inode) { | |
1953 | ll_update_inode(*inode, &md); | |
1954 | } else { | |
6e16818b | 1955 | LASSERT(sb); |
d7e09d03 PT |
1956 | |
1957 | /* | |
1958 | * At this point server returns to client's same fid as client | |
1959 | * generated for creating. So using ->fid1 is okay here. | |
1960 | */ | |
1961 | LASSERT(fid_is_sane(&md.body->fid1)); | |
1962 | ||
1963 | *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, | |
c1e2699d | 1964 | sbi->ll_flags & LL_SBI_32BIT_API), |
d7e09d03 | 1965 | &md); |
6e16818b | 1966 | if (IS_ERR_OR_NULL(*inode)) { |
d7e09d03 PT |
1967 | #ifdef CONFIG_FS_POSIX_ACL |
1968 | if (md.posix_acl) { | |
1969 | posix_acl_release(md.posix_acl); | |
1970 | md.posix_acl = NULL; | |
1971 | } | |
1972 | #endif | |
1973 | rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM; | |
1974 | *inode = NULL; | |
1975 | CERROR("new_inode -fatal: rc %d\n", rc); | |
34e1f2bb | 1976 | goto out; |
d7e09d03 PT |
1977 | } |
1978 | } | |
1979 | ||
1980 | /* Handling piggyback layout lock. | |
1981 | * Layout lock can be piggybacked by getattr and open request. | |
1982 | * The lsm can be applied to inode only if it comes with a layout lock | |
1983 | * otherwise correct layout may be overwritten, for example: | |
1984 | * 1. proc1: mdt returns a lsm but not granting layout | |
1985 | * 2. layout was changed by another client | |
1986 | * 3. proc2: refresh layout and layout lock granted | |
1987 | * 4. proc1: to apply a stale layout */ | |
6e16818b | 1988 | if (it && it->d.lustre.it_lock_mode != 0) { |
d7e09d03 PT |
1989 | struct lustre_handle lockh; |
1990 | struct ldlm_lock *lock; | |
1991 | ||
1992 | lockh.cookie = it->d.lustre.it_lock_handle; | |
1993 | lock = ldlm_handle2lock(&lockh); | |
6e16818b | 1994 | LASSERT(lock); |
d7e09d03 PT |
1995 | if (ldlm_has_layout(lock)) { |
1996 | struct cl_object_conf conf; | |
1997 | ||
1998 | memset(&conf, 0, sizeof(conf)); | |
1999 | conf.coc_opc = OBJECT_CONF_SET; | |
2000 | conf.coc_inode = *inode; | |
2001 | conf.coc_lock = lock; | |
2002 | conf.u.coc_md = &md; | |
2003 | (void)ll_layout_conf(*inode, &conf); | |
2004 | } | |
2005 | LDLM_LOCK_PUT(lock); | |
2006 | } | |
2007 | ||
2008 | out: | |
6e16818b | 2009 | if (md.lsm) |
d7e09d03 PT |
2010 | obd_free_memmd(sbi->ll_dt_exp, &md.lsm); |
2011 | md_free_lustre_md(sbi->ll_md_exp, &md); | |
44ecac68 FY |
2012 | |
2013 | cleanup: | |
2014 | if (rc != 0 && it && it->it_op & IT_OPEN) | |
2015 | ll_open_cleanup(sb ? sb : (*inode)->i_sb, req); | |
2016 | ||
0a3bdb00 | 2017 | return rc; |
d7e09d03 PT |
2018 | } |
2019 | ||
4c6243ec | 2020 | int ll_obd_statfs(struct inode *inode, void __user *arg) |
d7e09d03 PT |
2021 | { |
2022 | struct ll_sb_info *sbi = NULL; | |
2023 | struct obd_export *exp; | |
2024 | char *buf = NULL; | |
2025 | struct obd_ioctl_data *data = NULL; | |
2026 | __u32 type; | |
d7e09d03 PT |
2027 | int len = 0, rc; |
2028 | ||
c650ba73 TR |
2029 | if (!inode) { |
2030 | rc = -EINVAL; | |
2031 | goto out_statfs; | |
2032 | } | |
2033 | ||
2034 | sbi = ll_i2sbi(inode); | |
2035 | if (!sbi) { | |
34e1f2bb JL |
2036 | rc = -EINVAL; |
2037 | goto out_statfs; | |
2038 | } | |
d7e09d03 PT |
2039 | |
2040 | rc = obd_ioctl_getdata(&buf, &len, arg); | |
2041 | if (rc) | |
34e1f2bb | 2042 | goto out_statfs; |
d7e09d03 | 2043 | |
bdbb0512 | 2044 | data = (void *)buf; |
d7e09d03 | 2045 | if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 || |
34e1f2bb JL |
2046 | !data->ioc_pbuf1 || !data->ioc_pbuf2) { |
2047 | rc = -EINVAL; | |
2048 | goto out_statfs; | |
2049 | } | |
d7e09d03 PT |
2050 | |
2051 | if (data->ioc_inllen1 != sizeof(__u32) || | |
2052 | data->ioc_inllen2 != sizeof(__u32) || | |
2053 | data->ioc_plen1 != sizeof(struct obd_statfs) || | |
34e1f2bb JL |
2054 | data->ioc_plen2 != sizeof(struct obd_uuid)) { |
2055 | rc = -EINVAL; | |
2056 | goto out_statfs; | |
2057 | } | |
d7e09d03 PT |
2058 | |
2059 | memcpy(&type, data->ioc_inlbuf1, sizeof(__u32)); | |
2060 | if (type & LL_STATFS_LMV) | |
2061 | exp = sbi->ll_md_exp; | |
2062 | else if (type & LL_STATFS_LOV) | |
2063 | exp = sbi->ll_dt_exp; | |
34e1f2bb JL |
2064 | else { |
2065 | rc = -ENODEV; | |
2066 | goto out_statfs; | |
2067 | } | |
d7e09d03 | 2068 | |
44164fc9 | 2069 | rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL); |
d7e09d03 | 2070 | if (rc) |
34e1f2bb | 2071 | goto out_statfs; |
d7e09d03 PT |
2072 | out_statfs: |
2073 | if (buf) | |
2074 | obd_ioctl_freedata(buf, len); | |
2075 | return rc; | |
2076 | } | |
2077 | ||
2078 | int ll_process_config(struct lustre_cfg *lcfg) | |
2079 | { | |
2080 | char *ptr; | |
2081 | void *sb; | |
2082 | struct lprocfs_static_vars lvars; | |
2083 | unsigned long x; | |
2084 | int rc = 0; | |
2085 | ||
2086 | lprocfs_llite_init_vars(&lvars); | |
2087 | ||
2088 | /* The instance name contains the sb: lustre-client-aacfe000 */ | |
2089 | ptr = strrchr(lustre_cfg_string(lcfg, 0), '-'); | |
2090 | if (!ptr || !*(++ptr)) | |
2091 | return -EINVAL; | |
692f2b6c | 2092 | rc = kstrtoul(ptr, 16, &x); |
2093 | if (rc != 0) | |
d7e09d03 PT |
2094 | return -EINVAL; |
2095 | sb = (void *)x; | |
2096 | /* This better be a real Lustre superblock! */ | |
2097 | LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC); | |
2098 | ||
2099 | /* Note we have not called client_common_fill_super yet, so | |
2100 | proc fns must be able to handle that! */ | |
2101 | rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars, | |
2102 | lcfg, sb); | |
2103 | if (rc > 0) | |
2104 | rc = 0; | |
fbe7c6c7 | 2105 | return rc; |
d7e09d03 PT |
2106 | } |
2107 | ||
2108 | /* this function prepares md_op_data hint for passing ot down to MD stack. */ | |
aff9d8e8 | 2109 | struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data, |
d7e09d03 PT |
2110 | struct inode *i1, struct inode *i2, |
2111 | const char *name, int namelen, | |
2112 | int mode, __u32 opc, void *data) | |
2113 | { | |
d7e09d03 PT |
2114 | if (namelen > ll_i2sbi(i1)->ll_namelen) |
2115 | return ERR_PTR(-ENAMETOOLONG); | |
2116 | ||
6e16818b | 2117 | if (!op_data) |
496a51bd | 2118 | op_data = kzalloc(sizeof(*op_data), GFP_NOFS); |
d7e09d03 | 2119 | |
6e16818b | 2120 | if (!op_data) |
d7e09d03 PT |
2121 | return ERR_PTR(-ENOMEM); |
2122 | ||
2123 | ll_i2gids(op_data->op_suppgids, i1, i2); | |
2124 | op_data->op_fid1 = *ll_inode2fid(i1); | |
d7e09d03 | 2125 | |
ef2e0f55 | 2126 | if (i2) |
d7e09d03 | 2127 | op_data->op_fid2 = *ll_inode2fid(i2); |
ef2e0f55 | 2128 | else |
d7e09d03 | 2129 | fid_zero(&op_data->op_fid2); |
d7e09d03 PT |
2130 | |
2131 | op_data->op_name = name; | |
2132 | op_data->op_namelen = namelen; | |
2133 | op_data->op_mode = mode; | |
14e3f92a | 2134 | op_data->op_mod_time = ktime_get_real_seconds(); |
4b1a25f0 PT |
2135 | op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
2136 | op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid()); | |
d7e09d03 PT |
2137 | op_data->op_cap = cfs_curproc_cap_pack(); |
2138 | op_data->op_bias = 0; | |
2139 | op_data->op_cli_flags = 0; | |
6e16818b OD |
2140 | if ((opc == LUSTRE_OPC_CREATE) && name && |
2141 | filename_is_volatile(name, namelen, NULL)) | |
d7e09d03 PT |
2142 | op_data->op_bias |= MDS_CREATE_VOLATILE; |
2143 | op_data->op_opc = opc; | |
2144 | op_data->op_mds = 0; | |
2145 | op_data->op_data = data; | |
2146 | ||
2147 | /* If the file is being opened after mknod() (normally due to NFS) | |
2148 | * try to use the default stripe data from parent directory for | |
2149 | * allocating OST objects. Try to pass the parent FID to MDS. */ | |
2150 | if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) && | |
2151 | !ll_i2info(i2)->lli_has_smd) { | |
2152 | struct ll_inode_info *lli = ll_i2info(i2); | |
2153 | ||
2154 | spin_lock(&lli->lli_lock); | |
2155 | if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid))) | |
2156 | op_data->op_fid1 = lli->lli_pfid; | |
2157 | spin_unlock(&lli->lli_lock); | |
d7e09d03 PT |
2158 | } |
2159 | ||
2160 | /* When called by ll_setattr_raw, file is i1. */ | |
1f6eaf83 | 2161 | if (ll_i2info(i1)->lli_flags & LLIF_DATA_MODIFIED) |
d7e09d03 PT |
2162 | op_data->op_bias |= MDS_DATA_MODIFIED; |
2163 | ||
2164 | return op_data; | |
2165 | } | |
2166 | ||
2167 | void ll_finish_md_op_data(struct md_op_data *op_data) | |
2168 | { | |
97903a26 | 2169 | kfree(op_data); |
d7e09d03 PT |
2170 | } |
2171 | ||
2172 | int ll_show_options(struct seq_file *seq, struct dentry *dentry) | |
2173 | { | |
2174 | struct ll_sb_info *sbi; | |
2175 | ||
6e16818b | 2176 | LASSERT(seq && dentry); |
d7e09d03 PT |
2177 | sbi = ll_s2sbi(dentry->d_sb); |
2178 | ||
2179 | if (sbi->ll_flags & LL_SBI_NOLCK) | |
2180 | seq_puts(seq, ",nolock"); | |
2181 | ||
2182 | if (sbi->ll_flags & LL_SBI_FLOCK) | |
2183 | seq_puts(seq, ",flock"); | |
2184 | ||
2185 | if (sbi->ll_flags & LL_SBI_LOCALFLOCK) | |
2186 | seq_puts(seq, ",localflock"); | |
2187 | ||
2188 | if (sbi->ll_flags & LL_SBI_USER_XATTR) | |
2189 | seq_puts(seq, ",user_xattr"); | |
2190 | ||
2191 | if (sbi->ll_flags & LL_SBI_LAZYSTATFS) | |
2192 | seq_puts(seq, ",lazystatfs"); | |
2193 | ||
2194 | if (sbi->ll_flags & LL_SBI_USER_FID2PATH) | |
2195 | seq_puts(seq, ",user_fid2path"); | |
2196 | ||
0a3bdb00 | 2197 | return 0; |
d7e09d03 PT |
2198 | } |
2199 | ||
2200 | /** | |
2201 | * Get obd name by cmd, and copy out to user space | |
2202 | */ | |
2203 | int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg) | |
2204 | { | |
2205 | struct ll_sb_info *sbi = ll_i2sbi(inode); | |
2206 | struct obd_device *obd; | |
d7e09d03 PT |
2207 | |
2208 | if (cmd == OBD_IOC_GETDTNAME) | |
2209 | obd = class_exp2obd(sbi->ll_dt_exp); | |
2210 | else if (cmd == OBD_IOC_GETMDNAME) | |
2211 | obd = class_exp2obd(sbi->ll_md_exp); | |
2212 | else | |
0a3bdb00 | 2213 | return -EINVAL; |
d7e09d03 PT |
2214 | |
2215 | if (!obd) | |
0a3bdb00 | 2216 | return -ENOENT; |
d7e09d03 | 2217 | |
7ac5db21 OD |
2218 | if (copy_to_user((void __user *)arg, obd->obd_name, |
2219 | strlen(obd->obd_name) + 1)) | |
0a3bdb00 | 2220 | return -EFAULT; |
d7e09d03 | 2221 | |
0a3bdb00 | 2222 | return 0; |
d7e09d03 PT |
2223 | } |
2224 | ||
2225 | /** | |
2226 | * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the | |
2227 | * fsname will be returned in this buffer; otherwise, a static buffer will be | |
2228 | * used to store the fsname and returned to caller. | |
2229 | */ | |
2230 | char *ll_get_fsname(struct super_block *sb, char *buf, int buflen) | |
2231 | { | |
2232 | static char fsname_static[MTI_NAME_MAXLEN]; | |
2233 | struct lustre_sb_info *lsi = s2lsi(sb); | |
2234 | char *ptr; | |
2235 | int len; | |
2236 | ||
6e16818b | 2237 | if (!buf) { |
d7e09d03 PT |
2238 | /* this means the caller wants to use static buffer |
2239 | * and it doesn't care about race. Usually this is | |
2240 | * in error reporting path */ | |
2241 | buf = fsname_static; | |
2242 | buflen = sizeof(fsname_static); | |
2243 | } | |
2244 | ||
2245 | len = strlen(lsi->lsi_lmd->lmd_profile); | |
2246 | ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); | |
2247 | if (ptr && (strcmp(ptr, "-client") == 0)) | |
2248 | len -= 7; | |
2249 | ||
2250 | if (unlikely(len >= buflen)) | |
2251 | len = buflen - 1; | |
2252 | strncpy(buf, lsi->lsi_lmd->lmd_profile, len); | |
2253 | buf[len] = '\0'; | |
2254 | ||
2255 | return buf; | |
2256 | } | |
2257 | ||
d7e09d03 PT |
2258 | void ll_dirty_page_discard_warn(struct page *page, int ioret) |
2259 | { | |
2260 | char *buf, *path = NULL; | |
2261 | struct dentry *dentry = NULL; | |
2262 | struct ccc_object *obj = cl_inode2ccc(page->mapping->host); | |
2263 | ||
2264 | /* this can be called inside spin lock so use GFP_ATOMIC. */ | |
2265 | buf = (char *)__get_free_page(GFP_ATOMIC); | |
6e16818b | 2266 | if (buf) { |
d7e09d03 | 2267 | dentry = d_find_alias(page->mapping->host); |
6e16818b | 2268 | if (dentry) |
1ad581eb | 2269 | path = dentry_path_raw(dentry, buf, PAGE_SIZE); |
d7e09d03 PT |
2270 | } |
2271 | ||
73b89907 | 2272 | CDEBUG(D_WARNING, |
2d00bd17 JP |
2273 | "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n", |
2274 | ll_get_fsname(page->mapping->host->i_sb, NULL, 0), | |
73b89907 RH |
2275 | s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev, |
2276 | PFID(&obj->cob_header.coh_lu.loh_fid), | |
2277 | (path && !IS_ERR(path)) ? path : "", ioret); | |
d7e09d03 | 2278 | |
6e16818b | 2279 | if (dentry) |
d7e09d03 PT |
2280 | dput(dentry); |
2281 | ||
6e16818b | 2282 | if (buf) |
d7e09d03 PT |
2283 | free_page((unsigned long)buf); |
2284 | } |