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 | 44 | * @gl: the glock |
b5b24d7a | 45 | * @fsync: set when called from fsync (not all buffers will be clean) |
ddacfaf7 SW |
46 | * |
47 | * None of the buffers should be dirty, locked, or pinned. | |
48 | */ | |
49 | ||
1bc333f4 BM |
50 | static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync, |
51 | unsigned int nr_revokes) | |
ddacfaf7 SW |
52 | { |
53 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
ddacfaf7 | 54 | struct list_head *head = &gl->gl_ail_list; |
b5b24d7a | 55 | struct gfs2_bufdata *bd, *tmp; |
ddacfaf7 | 56 | struct buffer_head *bh; |
b5b24d7a | 57 | const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock); |
d8348de0 | 58 | |
b5b24d7a | 59 | gfs2_log_lock(sdp); |
d6a079e8 | 60 | spin_lock(&sdp->sd_ail_lock); |
1bc333f4 BM |
61 | list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) { |
62 | if (nr_revokes == 0) | |
63 | break; | |
ddacfaf7 | 64 | bh = bd->bd_bh; |
b5b24d7a SW |
65 | if (bh->b_state & b_state) { |
66 | if (fsync) | |
67 | continue; | |
75549186 | 68 | gfs2_ail_error(gl, bh); |
b5b24d7a | 69 | } |
1ad38c43 | 70 | gfs2_trans_add_revoke(sdp, bd); |
1bc333f4 | 71 | nr_revokes--; |
ddacfaf7 | 72 | } |
8eae1ca0 | 73 | GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count)); |
d6a079e8 | 74 | spin_unlock(&sdp->sd_ail_lock); |
b5b24d7a | 75 | gfs2_log_unlock(sdp); |
dba898b0 SW |
76 | } |
77 | ||
78 | ||
79 | static void gfs2_ail_empty_gl(struct gfs2_glock *gl) | |
80 | { | |
81 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
82 | struct gfs2_trans tr; | |
83 | ||
84 | memset(&tr, 0, sizeof(tr)); | |
85 | tr.tr_revokes = atomic_read(&gl->gl_ail_count); | |
86 | ||
87 | if (!tr.tr_revokes) | |
88 | return; | |
89 | ||
90 | /* A shortened, inline version of gfs2_trans_begin() */ | |
91 | tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes, sizeof(u64)); | |
92 | tr.tr_ip = (unsigned long)__builtin_return_address(0); | |
a0b4df29 | 93 | sb_start_intwrite(sdp->sd_vfs); |
dba898b0 | 94 | gfs2_log_reserve(sdp, tr.tr_reserved); |
8eae1ca0 | 95 | WARN_ON_ONCE(current->journal_info); |
dba898b0 SW |
96 | current->journal_info = &tr; |
97 | ||
1bc333f4 | 98 | __gfs2_ail_flush(gl, 0, tr.tr_revokes); |
dba898b0 SW |
99 | |
100 | gfs2_trans_end(sdp); | |
101 | gfs2_log_flush(sdp, NULL); | |
102 | } | |
ddacfaf7 | 103 | |
b5b24d7a | 104 | void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) |
dba898b0 SW |
105 | { |
106 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
107 | unsigned int revokes = atomic_read(&gl->gl_ail_count); | |
1bc333f4 | 108 | unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64); |
dba898b0 SW |
109 | int ret; |
110 | ||
111 | if (!revokes) | |
112 | return; | |
113 | ||
1bc333f4 BM |
114 | while (revokes > max_revokes) |
115 | max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64); | |
116 | ||
117 | ret = gfs2_trans_begin(sdp, 0, max_revokes); | |
dba898b0 SW |
118 | if (ret) |
119 | return; | |
1bc333f4 | 120 | __gfs2_ail_flush(gl, fsync, max_revokes); |
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; |
8eae1ca0 | 142 | GLOCK_BUG_ON(gl, 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 | |
8eae1ca0 | 171 | WARN_ON_ONCE(!(flags & DIO_METADATA)); |
6bac243f SW |
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 | |
8eae1ca0 | 200 | GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE); |
6bac243f SW |
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 | |
bfe86848 | 302 | set_nlink(inode, nlink); |
d4b2cf1b SW |
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 | ||
d0546426 EB |
325 | i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid)); |
326 | i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid)); | |
d4b2cf1b SW |
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 | ||
d4b2cf1b SW |
382 | error = gfs2_dinode_in(ip, dibh->b_data); |
383 | brelse(dibh); | |
384 | clear_bit(GIF_INVALID, &ip->i_flags); | |
385 | ||
386 | return error; | |
387 | } | |
388 | ||
b3b94faa DT |
389 | /** |
390 | * inode_go_lock - operation done after an inode lock is locked by a process | |
391 | * @gl: the glock | |
392 | * @flags: | |
393 | * | |
394 | * Returns: errno | |
395 | */ | |
396 | ||
397 | static int inode_go_lock(struct gfs2_holder *gh) | |
398 | { | |
399 | struct gfs2_glock *gl = gh->gh_gl; | |
813e0c46 | 400 | struct gfs2_sbd *sdp = gl->gl_sbd; |
5c676f6d | 401 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa DT |
402 | int error = 0; |
403 | ||
091806ed | 404 | if (!ip || (gh->gh_flags & GL_SKIP)) |
b3b94faa DT |
405 | return 0; |
406 | ||
bfded27b | 407 | if (test_bit(GIF_INVALID, &ip->i_flags)) { |
b3b94faa DT |
408 | error = gfs2_inode_refresh(ip); |
409 | if (error) | |
410 | return error; | |
b3b94faa DT |
411 | } |
412 | ||
383f01fb | 413 | if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) && |
b3b94faa | 414 | (gl->gl_state == LM_ST_EXCLUSIVE) && |
813e0c46 SW |
415 | (gh->gh_state == LM_ST_EXCLUSIVE)) { |
416 | spin_lock(&sdp->sd_trunc_lock); | |
417 | if (list_empty(&ip->i_trunc_list)) | |
418 | list_add(&sdp->sd_trunc_list, &ip->i_trunc_list); | |
419 | spin_unlock(&sdp->sd_trunc_lock); | |
420 | wake_up(&sdp->sd_quota_wait); | |
421 | return 1; | |
422 | } | |
b3b94faa DT |
423 | |
424 | return error; | |
425 | } | |
426 | ||
6802e340 SW |
427 | /** |
428 | * inode_go_dump - print information about an inode | |
429 | * @seq: The iterator | |
430 | * @ip: the inode | |
431 | * | |
432 | * Returns: 0 on success, -ENOBUFS when we run out of space | |
433 | */ | |
434 | ||
435 | static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl) | |
436 | { | |
437 | const struct gfs2_inode *ip = gl->gl_object; | |
438 | if (ip == NULL) | |
439 | return 0; | |
a2e0f799 | 440 | gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu\n", |
6802e340 SW |
441 | (unsigned long long)ip->i_no_formal_ino, |
442 | (unsigned long long)ip->i_no_addr, | |
fa75cedc SW |
443 | IF2DT(ip->i_inode.i_mode), ip->i_flags, |
444 | (unsigned int)ip->i_diskflags, | |
a2e0f799 | 445 | (unsigned long long)i_size_read(&ip->i_inode)); |
6802e340 SW |
446 | return 0; |
447 | } | |
448 | ||
b3b94faa | 449 | /** |
3042a2cc | 450 | * trans_go_sync - promote/demote the transaction glock |
b3b94faa DT |
451 | * @gl: the glock |
452 | * @state: the requested state | |
453 | * @flags: | |
454 | * | |
455 | */ | |
456 | ||
3042a2cc | 457 | static void trans_go_sync(struct gfs2_glock *gl) |
b3b94faa DT |
458 | { |
459 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
460 | ||
461 | if (gl->gl_state != LM_ST_UNLOCKED && | |
462 | test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { | |
463 | gfs2_meta_syncfs(sdp); | |
464 | gfs2_log_shutdown(sdp); | |
465 | } | |
b3b94faa DT |
466 | } |
467 | ||
468 | /** | |
469 | * trans_go_xmote_bh - After promoting/demoting the transaction glock | |
470 | * @gl: the glock | |
471 | * | |
472 | */ | |
473 | ||
6802e340 | 474 | static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh) |
b3b94faa DT |
475 | { |
476 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
feaa7bba | 477 | struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
5c676f6d | 478 | struct gfs2_glock *j_gl = ip->i_gl; |
55167622 | 479 | struct gfs2_log_header_host head; |
b3b94faa DT |
480 | int error; |
481 | ||
6802e340 | 482 | if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { |
1a14d3a6 | 483 | j_gl->gl_ops->go_inval(j_gl, DIO_METADATA); |
b3b94faa DT |
484 | |
485 | error = gfs2_find_jhead(sdp->sd_jdesc, &head); | |
486 | if (error) | |
487 | gfs2_consist(sdp); | |
488 | if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) | |
489 | gfs2_consist(sdp); | |
490 | ||
491 | /* Initialize some head of the log stuff */ | |
492 | if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) { | |
493 | sdp->sd_log_sequence = head.lh_sequence + 1; | |
494 | gfs2_log_pointers_init(sdp, head.lh_blkno); | |
495 | } | |
496 | } | |
6802e340 | 497 | return 0; |
b3b94faa DT |
498 | } |
499 | ||
97cc1025 SW |
500 | /** |
501 | * trans_go_demote_ok | |
502 | * @gl: the glock | |
503 | * | |
504 | * Always returns 0 | |
505 | */ | |
506 | ||
507 | static int trans_go_demote_ok(const struct gfs2_glock *gl) | |
508 | { | |
509 | return 0; | |
510 | } | |
511 | ||
b94a170e BM |
512 | /** |
513 | * iopen_go_callback - schedule the dcache entry for the inode to be deleted | |
514 | * @gl: the glock | |
515 | * | |
516 | * gl_spin lock is held while calling this | |
517 | */ | |
81ffbf65 | 518 | static void iopen_go_callback(struct gfs2_glock *gl, bool remote) |
b94a170e BM |
519 | { |
520 | struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object; | |
001e8e8d SW |
521 | struct gfs2_sbd *sdp = gl->gl_sbd; |
522 | ||
81ffbf65 | 523 | if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY)) |
001e8e8d | 524 | return; |
b94a170e BM |
525 | |
526 | if (gl->gl_demote_state == LM_ST_UNLOCKED && | |
009d8518 | 527 | gl->gl_state == LM_ST_SHARED && ip) { |
b94a170e BM |
528 | gfs2_glock_hold(gl); |
529 | if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0) | |
530 | gfs2_glock_put_nolock(gl); | |
531 | } | |
532 | } | |
533 | ||
8fb4b536 | 534 | const struct gfs2_glock_operations gfs2_meta_glops = { |
ea67eedb | 535 | .go_type = LM_TYPE_META, |
b3b94faa DT |
536 | }; |
537 | ||
8fb4b536 | 538 | const struct gfs2_glock_operations gfs2_inode_glops = { |
06dfc306 | 539 | .go_sync = inode_go_sync, |
b3b94faa DT |
540 | .go_inval = inode_go_inval, |
541 | .go_demote_ok = inode_go_demote_ok, | |
542 | .go_lock = inode_go_lock, | |
6802e340 | 543 | .go_dump = inode_go_dump, |
ea67eedb | 544 | .go_type = LM_TYPE_INODE, |
009d8518 | 545 | .go_flags = GLOF_ASPACE, |
b3b94faa DT |
546 | }; |
547 | ||
8fb4b536 | 548 | const struct gfs2_glock_operations gfs2_rgrp_glops = { |
06dfc306 | 549 | .go_sync = rgrp_go_sync, |
6bac243f | 550 | .go_inval = rgrp_go_inval, |
7c9ca621 BP |
551 | .go_lock = gfs2_rgrp_go_lock, |
552 | .go_unlock = gfs2_rgrp_go_unlock, | |
09010978 | 553 | .go_dump = gfs2_rgrp_dump, |
ea67eedb | 554 | .go_type = LM_TYPE_RGRP, |
dba2d70c | 555 | .go_flags = GLOF_ASPACE | GLOF_LVB, |
b3b94faa DT |
556 | }; |
557 | ||
8fb4b536 | 558 | const struct gfs2_glock_operations gfs2_trans_glops = { |
06dfc306 | 559 | .go_sync = trans_go_sync, |
b3b94faa | 560 | .go_xmote_bh = trans_go_xmote_bh, |
97cc1025 | 561 | .go_demote_ok = trans_go_demote_ok, |
ea67eedb | 562 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
563 | }; |
564 | ||
8fb4b536 | 565 | const struct gfs2_glock_operations gfs2_iopen_glops = { |
ea67eedb | 566 | .go_type = LM_TYPE_IOPEN, |
b94a170e | 567 | .go_callback = iopen_go_callback, |
b3b94faa DT |
568 | }; |
569 | ||
8fb4b536 | 570 | const struct gfs2_glock_operations gfs2_flock_glops = { |
ea67eedb | 571 | .go_type = LM_TYPE_FLOCK, |
b3b94faa DT |
572 | }; |
573 | ||
8fb4b536 | 574 | const struct gfs2_glock_operations gfs2_nondisk_glops = { |
ea67eedb | 575 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
576 | }; |
577 | ||
8fb4b536 | 578 | const struct gfs2_glock_operations gfs2_quota_glops = { |
ea67eedb | 579 | .go_type = LM_TYPE_QUOTA, |
dba2d70c | 580 | .go_flags = GLOF_LVB, |
b3b94faa DT |
581 | }; |
582 | ||
8fb4b536 | 583 | const struct gfs2_glock_operations gfs2_journal_glops = { |
ea67eedb | 584 | .go_type = LM_TYPE_JOURNAL, |
b3b94faa DT |
585 | }; |
586 | ||
64d576ba SW |
587 | const struct gfs2_glock_operations *gfs2_glops_list[] = { |
588 | [LM_TYPE_META] = &gfs2_meta_glops, | |
589 | [LM_TYPE_INODE] = &gfs2_inode_glops, | |
590 | [LM_TYPE_RGRP] = &gfs2_rgrp_glops, | |
64d576ba SW |
591 | [LM_TYPE_IOPEN] = &gfs2_iopen_glops, |
592 | [LM_TYPE_FLOCK] = &gfs2_flock_glops, | |
593 | [LM_TYPE_NONDISK] = &gfs2_nondisk_glops, | |
594 | [LM_TYPE_QUOTA] = &gfs2_quota_glops, | |
595 | [LM_TYPE_JOURNAL] = &gfs2_journal_glops, | |
596 | }; | |
597 |