]>
Commit | Line | Data |
---|---|---|
b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
cf45b752 | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
4 | * |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
b3b94faa DT |
10 | #include <linux/spinlock.h> |
11 | #include <linux/completion.h> | |
12 | #include <linux/buffer_head.h> | |
5c676f6d | 13 | #include <linux/gfs2_ondisk.h> |
6802e340 | 14 | #include <linux/bio.h> |
c65f7fb5 | 15 | #include <linux/posix_acl.h> |
b3b94faa DT |
16 | |
17 | #include "gfs2.h" | |
5c676f6d | 18 | #include "incore.h" |
b3b94faa DT |
19 | #include "bmap.h" |
20 | #include "glock.h" | |
21 | #include "glops.h" | |
22 | #include "inode.h" | |
23 | #include "log.h" | |
24 | #include "meta_io.h" | |
b3b94faa DT |
25 | #include "recovery.h" |
26 | #include "rgrp.h" | |
5c676f6d | 27 | #include "util.h" |
ddacfaf7 | 28 | #include "trans.h" |
17d539f0 | 29 | #include "dir.h" |
b3b94faa | 30 | |
75549186 SW |
31 | static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh) |
32 | { | |
33 | fs_err(gl->gl_sbd, "AIL buffer %p: blocknr %llu state 0x%08lx mapping %p page state 0x%lx\n", | |
34 | bh, (unsigned long long)bh->b_blocknr, bh->b_state, | |
35 | bh->b_page->mapping, bh->b_page->flags); | |
36 | fs_err(gl->gl_sbd, "AIL glock %u:%llu mapping %p\n", | |
37 | gl->gl_name.ln_type, gl->gl_name.ln_number, | |
38 | gfs2_glock2aspace(gl)); | |
39 | gfs2_lm_withdraw(gl->gl_sbd, "AIL error\n"); | |
40 | } | |
41 | ||
ddacfaf7 | 42 | /** |
dba898b0 | 43 | * __gfs2_ail_flush - remove all buffers for a given lock from the AIL |
ddacfaf7 SW |
44 | * @gl: the glock |
45 | * | |
46 | * None of the buffers should be dirty, locked, or pinned. | |
47 | */ | |
48 | ||
f1818529 | 49 | static void __gfs2_ail_flush(struct gfs2_glock *gl, unsigned long b_state) |
ddacfaf7 SW |
50 | { |
51 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
ddacfaf7 SW |
52 | struct list_head *head = &gl->gl_ail_list; |
53 | struct gfs2_bufdata *bd; | |
54 | struct buffer_head *bh; | |
75549186 | 55 | sector_t blocknr; |
d8348de0 | 56 | |
d6a079e8 | 57 | spin_lock(&sdp->sd_ail_lock); |
ddacfaf7 SW |
58 | while (!list_empty(head)) { |
59 | bd = list_entry(head->next, struct gfs2_bufdata, | |
60 | bd_ail_gl_list); | |
61 | bh = bd->bd_bh; | |
75549186 | 62 | blocknr = bh->b_blocknr; |
f1818529 | 63 | if (bh->b_state & b_state) |
75549186 | 64 | gfs2_ail_error(gl, bh); |
1ad38c43 | 65 | bh->b_private = NULL; |
75549186 | 66 | gfs2_remove_from_ail(bd); /* drops ref on bh */ |
380f7c65 SW |
67 | spin_unlock(&sdp->sd_ail_lock); |
68 | ||
75549186 SW |
69 | bd->bd_bh = NULL; |
70 | bd->bd_blkno = blocknr; | |
71 | ||
d6a079e8 | 72 | gfs2_log_lock(sdp); |
1ad38c43 | 73 | gfs2_trans_add_revoke(sdp, bd); |
d6a079e8 DC |
74 | gfs2_log_unlock(sdp); |
75 | ||
76 | spin_lock(&sdp->sd_ail_lock); | |
ddacfaf7 SW |
77 | } |
78 | gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count)); | |
d6a079e8 | 79 | spin_unlock(&sdp->sd_ail_lock); |
dba898b0 SW |
80 | } |
81 | ||
82 | ||
83 | static void gfs2_ail_empty_gl(struct gfs2_glock *gl) | |
84 | { | |
85 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
86 | struct gfs2_trans tr; | |
87 | ||
88 | memset(&tr, 0, sizeof(tr)); | |
89 | tr.tr_revokes = atomic_read(&gl->gl_ail_count); | |
90 | ||
91 | if (!tr.tr_revokes) | |
92 | return; | |
93 | ||
94 | /* A shortened, inline version of gfs2_trans_begin() */ | |
95 | tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes, sizeof(u64)); | |
96 | tr.tr_ip = (unsigned long)__builtin_return_address(0); | |
97 | INIT_LIST_HEAD(&tr.tr_list_buf); | |
98 | gfs2_log_reserve(sdp, tr.tr_reserved); | |
99 | BUG_ON(current->journal_info); | |
100 | current->journal_info = &tr; | |
101 | ||
f1818529 | 102 | __gfs2_ail_flush(gl, (1ul << BH_Dirty)|(1ul << BH_Pinned)|(1ul << BH_Lock)); |
dba898b0 SW |
103 | |
104 | gfs2_trans_end(sdp); | |
105 | gfs2_log_flush(sdp, NULL); | |
106 | } | |
ddacfaf7 | 107 | |
dba898b0 SW |
108 | void gfs2_ail_flush(struct gfs2_glock *gl) |
109 | { | |
110 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
111 | unsigned int revokes = atomic_read(&gl->gl_ail_count); | |
112 | int ret; | |
113 | ||
114 | if (!revokes) | |
115 | return; | |
116 | ||
117 | ret = gfs2_trans_begin(sdp, 0, revokes); | |
118 | if (ret) | |
119 | return; | |
f1818529 | 120 | __gfs2_ail_flush(gl, (1ul << BH_Dirty)|(1ul << BH_Pinned)); |
ddacfaf7 SW |
121 | gfs2_trans_end(sdp); |
122 | gfs2_log_flush(sdp, NULL); | |
123 | } | |
ba7f7290 SW |
124 | |
125 | /** | |
6bac243f | 126 | * rgrp_go_sync - sync out the metadata for this glock |
b3b94faa | 127 | * @gl: the glock |
b3b94faa DT |
128 | * |
129 | * Called when demoting or unlocking an EX glock. We must flush | |
130 | * to disk all dirty buffers/pages relating to this glock, and must not | |
131 | * not return to caller to demote/unlock the glock until I/O is complete. | |
132 | */ | |
133 | ||
6bac243f | 134 | static void rgrp_go_sync(struct gfs2_glock *gl) |
b3b94faa | 135 | { |
009d8518 | 136 | struct address_space *metamapping = gfs2_glock2aspace(gl); |
8339ee54 | 137 | struct gfs2_rgrpd *rgd; |
6bac243f SW |
138 | int error; |
139 | ||
140 | if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) | |
b5d32bea | 141 | return; |
6bac243f | 142 | BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE); |
b5d32bea | 143 | |
6bac243f SW |
144 | gfs2_log_flush(gl->gl_sbd, gl); |
145 | filemap_fdatawrite(metamapping); | |
146 | error = filemap_fdatawait(metamapping); | |
147 | mapping_set_error(metamapping, error); | |
148 | gfs2_ail_empty_gl(gl); | |
7c9ca621 | 149 | |
8339ee54 SW |
150 | spin_lock(&gl->gl_spin); |
151 | rgd = gl->gl_object; | |
152 | if (rgd) | |
153 | gfs2_free_clones(rgd); | |
154 | spin_unlock(&gl->gl_spin); | |
b3b94faa DT |
155 | } |
156 | ||
157 | /** | |
6bac243f | 158 | * rgrp_go_inval - invalidate the metadata for this glock |
b3b94faa DT |
159 | * @gl: the glock |
160 | * @flags: | |
161 | * | |
6bac243f SW |
162 | * We never used LM_ST_DEFERRED with resource groups, so that we |
163 | * should always see the metadata flag set here. | |
164 | * | |
b3b94faa DT |
165 | */ |
166 | ||
6bac243f | 167 | static void rgrp_go_inval(struct gfs2_glock *gl, int flags) |
b3b94faa | 168 | { |
009d8518 | 169 | struct address_space *mapping = gfs2_glock2aspace(gl); |
b3b94faa | 170 | |
6bac243f SW |
171 | BUG_ON(!(flags & DIO_METADATA)); |
172 | gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count)); | |
173 | truncate_inode_pages(mapping, 0); | |
cf45b752 | 174 | |
6bac243f SW |
175 | if (gl->gl_object) { |
176 | struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object; | |
cf45b752 BP |
177 | rgd->rd_flags &= ~GFS2_RDF_UPTODATE; |
178 | } | |
b3b94faa DT |
179 | } |
180 | ||
b5d32bea SW |
181 | /** |
182 | * inode_go_sync - Sync the dirty data and/or metadata for an inode glock | |
183 | * @gl: the glock protecting the inode | |
184 | * | |
185 | */ | |
186 | ||
187 | static void inode_go_sync(struct gfs2_glock *gl) | |
188 | { | |
189 | struct gfs2_inode *ip = gl->gl_object; | |
009d8518 | 190 | struct address_space *metamapping = gfs2_glock2aspace(gl); |
3042a2cc SW |
191 | int error; |
192 | ||
b5d32bea SW |
193 | if (ip && !S_ISREG(ip->i_inode.i_mode)) |
194 | ip = NULL; | |
6bac243f SW |
195 | if (ip && test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags)) |
196 | unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0); | |
197 | if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) | |
198 | return; | |
b5d32bea | 199 | |
6bac243f SW |
200 | BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE); |
201 | ||
202 | gfs2_log_flush(gl->gl_sbd, gl); | |
203 | filemap_fdatawrite(metamapping); | |
204 | if (ip) { | |
205 | struct address_space *mapping = ip->i_inode.i_mapping; | |
206 | filemap_fdatawrite(mapping); | |
207 | error = filemap_fdatawait(mapping); | |
208 | mapping_set_error(mapping, error); | |
b5d32bea | 209 | } |
6bac243f SW |
210 | error = filemap_fdatawait(metamapping); |
211 | mapping_set_error(metamapping, error); | |
212 | gfs2_ail_empty_gl(gl); | |
52fcd11c SW |
213 | /* |
214 | * Writeback of the data mapping may cause the dirty flag to be set | |
215 | * so we have to clear it again here. | |
216 | */ | |
217 | smp_mb__before_clear_bit(); | |
218 | clear_bit(GLF_DIRTY, &gl->gl_flags); | |
b5d32bea SW |
219 | } |
220 | ||
b3b94faa DT |
221 | /** |
222 | * inode_go_inval - prepare a inode glock to be released | |
223 | * @gl: the glock | |
224 | * @flags: | |
6bac243f SW |
225 | * |
226 | * Normally we invlidate everything, but if we are moving into | |
227 | * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we | |
228 | * can keep hold of the metadata, since it won't have changed. | |
b3b94faa DT |
229 | * |
230 | */ | |
231 | ||
232 | static void inode_go_inval(struct gfs2_glock *gl, int flags) | |
233 | { | |
b004157a | 234 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa | 235 | |
6bac243f SW |
236 | gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count)); |
237 | ||
238 | if (flags & DIO_METADATA) { | |
009d8518 | 239 | struct address_space *mapping = gfs2_glock2aspace(gl); |
6bac243f | 240 | truncate_inode_pages(mapping, 0); |
c65f7fb5 | 241 | if (ip) { |
b004157a | 242 | set_bit(GIF_INVALID, &ip->i_flags); |
c65f7fb5 | 243 | forget_all_cached_acls(&ip->i_inode); |
17d539f0 | 244 | gfs2_dir_hash_inval(ip); |
c65f7fb5 | 245 | } |
b004157a SW |
246 | } |
247 | ||
1ce53368 BM |
248 | if (ip == GFS2_I(gl->gl_sbd->sd_rindex)) { |
249 | gfs2_log_flush(gl->gl_sbd, NULL); | |
6bac243f | 250 | gl->gl_sbd->sd_rindex_uptodate = 0; |
1ce53368 | 251 | } |
3cc3f710 | 252 | if (ip && S_ISREG(ip->i_inode.i_mode)) |
b004157a | 253 | truncate_inode_pages(ip->i_inode.i_mapping, 0); |
b3b94faa DT |
254 | } |
255 | ||
256 | /** | |
257 | * inode_go_demote_ok - Check to see if it's ok to unlock an inode glock | |
258 | * @gl: the glock | |
259 | * | |
260 | * Returns: 1 if it's ok | |
261 | */ | |
262 | ||
97cc1025 | 263 | static int inode_go_demote_ok(const struct gfs2_glock *gl) |
b3b94faa DT |
264 | { |
265 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
bc015cb8 SW |
266 | struct gfs2_holder *gh; |
267 | ||
97cc1025 SW |
268 | if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object) |
269 | return 0; | |
bc015cb8 SW |
270 | |
271 | if (!list_empty(&gl->gl_holders)) { | |
272 | gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list); | |
273 | if (gh->gh_list.next != &gl->gl_holders) | |
274 | return 0; | |
275 | } | |
276 | ||
97cc1025 | 277 | return 1; |
b3b94faa DT |
278 | } |
279 | ||
d4b2cf1b SW |
280 | /** |
281 | * gfs2_set_nlink - Set the inode's link count based on on-disk info | |
282 | * @inode: The inode in question | |
283 | * @nlink: The link count | |
284 | * | |
285 | * If the link count has hit zero, it must never be raised, whatever the | |
286 | * on-disk inode might say. When new struct inodes are created the link | |
287 | * count is set to 1, so that we can safely use this test even when reading | |
288 | * in on disk information for the first time. | |
289 | */ | |
290 | ||
291 | static void gfs2_set_nlink(struct inode *inode, u32 nlink) | |
292 | { | |
293 | /* | |
294 | * We will need to review setting the nlink count here in the | |
295 | * light of the forthcoming ro bind mount work. This is a reminder | |
296 | * to do that. | |
297 | */ | |
298 | if ((inode->i_nlink != nlink) && (inode->i_nlink != 0)) { | |
299 | if (nlink == 0) | |
300 | clear_nlink(inode); | |
301 | else | |
302 | inode->i_nlink = nlink; | |
303 | } | |
304 | } | |
305 | ||
306 | static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) | |
307 | { | |
308 | const struct gfs2_dinode *str = buf; | |
309 | struct timespec atime; | |
310 | u16 height, depth; | |
311 | ||
312 | if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) | |
313 | goto corrupt; | |
314 | ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino); | |
315 | ip->i_inode.i_mode = be32_to_cpu(str->di_mode); | |
316 | ip->i_inode.i_rdev = 0; | |
317 | switch (ip->i_inode.i_mode & S_IFMT) { | |
318 | case S_IFBLK: | |
319 | case S_IFCHR: | |
320 | ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major), | |
321 | be32_to_cpu(str->di_minor)); | |
322 | break; | |
323 | }; | |
324 | ||
325 | ip->i_inode.i_uid = be32_to_cpu(str->di_uid); | |
326 | ip->i_inode.i_gid = be32_to_cpu(str->di_gid); | |
327 | gfs2_set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink)); | |
328 | i_size_write(&ip->i_inode, be64_to_cpu(str->di_size)); | |
329 | gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks)); | |
330 | atime.tv_sec = be64_to_cpu(str->di_atime); | |
331 | atime.tv_nsec = be32_to_cpu(str->di_atime_nsec); | |
332 | if (timespec_compare(&ip->i_inode.i_atime, &atime) < 0) | |
333 | ip->i_inode.i_atime = atime; | |
334 | ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime); | |
335 | ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec); | |
336 | ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime); | |
337 | ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec); | |
338 | ||
339 | ip->i_goal = be64_to_cpu(str->di_goal_meta); | |
340 | ip->i_generation = be64_to_cpu(str->di_generation); | |
341 | ||
342 | ip->i_diskflags = be32_to_cpu(str->di_flags); | |
9964afbb SW |
343 | ip->i_eattr = be64_to_cpu(str->di_eattr); |
344 | /* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */ | |
d4b2cf1b SW |
345 | gfs2_set_inode_flags(&ip->i_inode); |
346 | height = be16_to_cpu(str->di_height); | |
347 | if (unlikely(height > GFS2_MAX_META_HEIGHT)) | |
348 | goto corrupt; | |
349 | ip->i_height = (u8)height; | |
350 | ||
351 | depth = be16_to_cpu(str->di_depth); | |
352 | if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) | |
353 | goto corrupt; | |
354 | ip->i_depth = (u8)depth; | |
355 | ip->i_entries = be32_to_cpu(str->di_entries); | |
356 | ||
d4b2cf1b SW |
357 | if (S_ISREG(ip->i_inode.i_mode)) |
358 | gfs2_set_aops(&ip->i_inode); | |
359 | ||
360 | return 0; | |
361 | corrupt: | |
362 | gfs2_consist_inode(ip); | |
363 | return -EIO; | |
364 | } | |
365 | ||
366 | /** | |
367 | * gfs2_inode_refresh - Refresh the incore copy of the dinode | |
368 | * @ip: The GFS2 inode | |
369 | * | |
370 | * Returns: errno | |
371 | */ | |
372 | ||
373 | int gfs2_inode_refresh(struct gfs2_inode *ip) | |
374 | { | |
375 | struct buffer_head *dibh; | |
376 | int error; | |
377 | ||
378 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
379 | if (error) | |
380 | return error; | |
381 | ||
382 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) { | |
383 | brelse(dibh); | |
384 | return -EIO; | |
385 | } | |
386 | ||
387 | error = gfs2_dinode_in(ip, dibh->b_data); | |
388 | brelse(dibh); | |
389 | clear_bit(GIF_INVALID, &ip->i_flags); | |
390 | ||
391 | return error; | |
392 | } | |
393 | ||
b3b94faa DT |
394 | /** |
395 | * inode_go_lock - operation done after an inode lock is locked by a process | |
396 | * @gl: the glock | |
397 | * @flags: | |
398 | * | |
399 | * Returns: errno | |
400 | */ | |
401 | ||
402 | static int inode_go_lock(struct gfs2_holder *gh) | |
403 | { | |
404 | struct gfs2_glock *gl = gh->gh_gl; | |
813e0c46 | 405 | struct gfs2_sbd *sdp = gl->gl_sbd; |
5c676f6d | 406 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa DT |
407 | int error = 0; |
408 | ||
091806ed | 409 | if (!ip || (gh->gh_flags & GL_SKIP)) |
b3b94faa DT |
410 | return 0; |
411 | ||
bfded27b | 412 | if (test_bit(GIF_INVALID, &ip->i_flags)) { |
b3b94faa DT |
413 | error = gfs2_inode_refresh(ip); |
414 | if (error) | |
415 | return error; | |
b3b94faa DT |
416 | } |
417 | ||
383f01fb | 418 | if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) && |
b3b94faa | 419 | (gl->gl_state == LM_ST_EXCLUSIVE) && |
813e0c46 SW |
420 | (gh->gh_state == LM_ST_EXCLUSIVE)) { |
421 | spin_lock(&sdp->sd_trunc_lock); | |
422 | if (list_empty(&ip->i_trunc_list)) | |
423 | list_add(&sdp->sd_trunc_list, &ip->i_trunc_list); | |
424 | spin_unlock(&sdp->sd_trunc_lock); | |
425 | wake_up(&sdp->sd_quota_wait); | |
426 | return 1; | |
427 | } | |
b3b94faa DT |
428 | |
429 | return error; | |
430 | } | |
431 | ||
6802e340 SW |
432 | /** |
433 | * inode_go_dump - print information about an inode | |
434 | * @seq: The iterator | |
435 | * @ip: the inode | |
436 | * | |
437 | * Returns: 0 on success, -ENOBUFS when we run out of space | |
438 | */ | |
439 | ||
440 | static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl) | |
441 | { | |
442 | const struct gfs2_inode *ip = gl->gl_object; | |
443 | if (ip == NULL) | |
444 | return 0; | |
a2e0f799 | 445 | gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu\n", |
6802e340 SW |
446 | (unsigned long long)ip->i_no_formal_ino, |
447 | (unsigned long long)ip->i_no_addr, | |
fa75cedc SW |
448 | IF2DT(ip->i_inode.i_mode), ip->i_flags, |
449 | (unsigned int)ip->i_diskflags, | |
a2e0f799 | 450 | (unsigned long long)i_size_read(&ip->i_inode)); |
6802e340 SW |
451 | return 0; |
452 | } | |
453 | ||
b3b94faa | 454 | /** |
3042a2cc | 455 | * trans_go_sync - promote/demote the transaction glock |
b3b94faa DT |
456 | * @gl: the glock |
457 | * @state: the requested state | |
458 | * @flags: | |
459 | * | |
460 | */ | |
461 | ||
3042a2cc | 462 | static void trans_go_sync(struct gfs2_glock *gl) |
b3b94faa DT |
463 | { |
464 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
465 | ||
466 | if (gl->gl_state != LM_ST_UNLOCKED && | |
467 | test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { | |
468 | gfs2_meta_syncfs(sdp); | |
469 | gfs2_log_shutdown(sdp); | |
470 | } | |
b3b94faa DT |
471 | } |
472 | ||
473 | /** | |
474 | * trans_go_xmote_bh - After promoting/demoting the transaction glock | |
475 | * @gl: the glock | |
476 | * | |
477 | */ | |
478 | ||
6802e340 | 479 | static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh) |
b3b94faa DT |
480 | { |
481 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
feaa7bba | 482 | struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
5c676f6d | 483 | struct gfs2_glock *j_gl = ip->i_gl; |
55167622 | 484 | struct gfs2_log_header_host head; |
b3b94faa DT |
485 | int error; |
486 | ||
6802e340 | 487 | if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { |
1a14d3a6 | 488 | j_gl->gl_ops->go_inval(j_gl, DIO_METADATA); |
b3b94faa DT |
489 | |
490 | error = gfs2_find_jhead(sdp->sd_jdesc, &head); | |
491 | if (error) | |
492 | gfs2_consist(sdp); | |
493 | if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) | |
494 | gfs2_consist(sdp); | |
495 | ||
496 | /* Initialize some head of the log stuff */ | |
497 | if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) { | |
498 | sdp->sd_log_sequence = head.lh_sequence + 1; | |
499 | gfs2_log_pointers_init(sdp, head.lh_blkno); | |
500 | } | |
501 | } | |
6802e340 | 502 | return 0; |
b3b94faa DT |
503 | } |
504 | ||
97cc1025 SW |
505 | /** |
506 | * trans_go_demote_ok | |
507 | * @gl: the glock | |
508 | * | |
509 | * Always returns 0 | |
510 | */ | |
511 | ||
512 | static int trans_go_demote_ok(const struct gfs2_glock *gl) | |
513 | { | |
514 | return 0; | |
515 | } | |
516 | ||
b94a170e BM |
517 | /** |
518 | * iopen_go_callback - schedule the dcache entry for the inode to be deleted | |
519 | * @gl: the glock | |
520 | * | |
521 | * gl_spin lock is held while calling this | |
522 | */ | |
523 | static void iopen_go_callback(struct gfs2_glock *gl) | |
524 | { | |
525 | struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object; | |
001e8e8d SW |
526 | struct gfs2_sbd *sdp = gl->gl_sbd; |
527 | ||
528 | if (sdp->sd_vfs->s_flags & MS_RDONLY) | |
529 | return; | |
b94a170e BM |
530 | |
531 | if (gl->gl_demote_state == LM_ST_UNLOCKED && | |
009d8518 | 532 | gl->gl_state == LM_ST_SHARED && ip) { |
b94a170e BM |
533 | gfs2_glock_hold(gl); |
534 | if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0) | |
535 | gfs2_glock_put_nolock(gl); | |
536 | } | |
537 | } | |
538 | ||
8fb4b536 | 539 | const struct gfs2_glock_operations gfs2_meta_glops = { |
ea67eedb | 540 | .go_type = LM_TYPE_META, |
b3b94faa DT |
541 | }; |
542 | ||
8fb4b536 | 543 | const struct gfs2_glock_operations gfs2_inode_glops = { |
3042a2cc | 544 | .go_xmote_th = inode_go_sync, |
b3b94faa DT |
545 | .go_inval = inode_go_inval, |
546 | .go_demote_ok = inode_go_demote_ok, | |
547 | .go_lock = inode_go_lock, | |
6802e340 | 548 | .go_dump = inode_go_dump, |
ea67eedb | 549 | .go_type = LM_TYPE_INODE, |
009d8518 | 550 | .go_flags = GLOF_ASPACE, |
b3b94faa DT |
551 | }; |
552 | ||
8fb4b536 | 553 | const struct gfs2_glock_operations gfs2_rgrp_glops = { |
6bac243f SW |
554 | .go_xmote_th = rgrp_go_sync, |
555 | .go_inval = rgrp_go_inval, | |
7c9ca621 BP |
556 | .go_lock = gfs2_rgrp_go_lock, |
557 | .go_unlock = gfs2_rgrp_go_unlock, | |
09010978 | 558 | .go_dump = gfs2_rgrp_dump, |
ea67eedb | 559 | .go_type = LM_TYPE_RGRP, |
009d8518 | 560 | .go_flags = GLOF_ASPACE, |
b3b94faa DT |
561 | }; |
562 | ||
8fb4b536 | 563 | const struct gfs2_glock_operations gfs2_trans_glops = { |
3042a2cc | 564 | .go_xmote_th = trans_go_sync, |
b3b94faa | 565 | .go_xmote_bh = trans_go_xmote_bh, |
97cc1025 | 566 | .go_demote_ok = trans_go_demote_ok, |
ea67eedb | 567 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
568 | }; |
569 | ||
8fb4b536 | 570 | const struct gfs2_glock_operations gfs2_iopen_glops = { |
ea67eedb | 571 | .go_type = LM_TYPE_IOPEN, |
b94a170e | 572 | .go_callback = iopen_go_callback, |
b3b94faa DT |
573 | }; |
574 | ||
8fb4b536 | 575 | const struct gfs2_glock_operations gfs2_flock_glops = { |
ea67eedb | 576 | .go_type = LM_TYPE_FLOCK, |
b3b94faa DT |
577 | }; |
578 | ||
8fb4b536 | 579 | const struct gfs2_glock_operations gfs2_nondisk_glops = { |
ea67eedb | 580 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
581 | }; |
582 | ||
8fb4b536 | 583 | const struct gfs2_glock_operations gfs2_quota_glops = { |
ea67eedb | 584 | .go_type = LM_TYPE_QUOTA, |
b3b94faa DT |
585 | }; |
586 | ||
8fb4b536 | 587 | const struct gfs2_glock_operations gfs2_journal_glops = { |
ea67eedb | 588 | .go_type = LM_TYPE_JOURNAL, |
b3b94faa DT |
589 | }; |
590 | ||
64d576ba SW |
591 | const struct gfs2_glock_operations *gfs2_glops_list[] = { |
592 | [LM_TYPE_META] = &gfs2_meta_glops, | |
593 | [LM_TYPE_INODE] = &gfs2_inode_glops, | |
594 | [LM_TYPE_RGRP] = &gfs2_rgrp_glops, | |
64d576ba SW |
595 | [LM_TYPE_IOPEN] = &gfs2_iopen_glops, |
596 | [LM_TYPE_FLOCK] = &gfs2_flock_glops, | |
597 | [LM_TYPE_NONDISK] = &gfs2_nondisk_glops, | |
598 | [LM_TYPE_QUOTA] = &gfs2_quota_glops, | |
599 | [LM_TYPE_JOURNAL] = &gfs2_journal_glops, | |
600 | }; | |
601 |