Commit | Line | Data |
---|---|---|
b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
091806ed | 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 | ||
10 | #include <linux/sched.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/spinlock.h> | |
13 | #include <linux/completion.h> | |
14 | #include <linux/buffer_head.h> | |
b3b94faa DT |
15 | #include <linux/statfs.h> |
16 | #include <linux/seq_file.h> | |
17 | #include <linux/mount.h> | |
18 | #include <linux/kthread.h> | |
19 | #include <linux/delay.h> | |
5c676f6d | 20 | #include <linux/gfs2_ondisk.h> |
feaa7bba | 21 | #include <linux/crc32.h> |
7d308590 | 22 | #include <linux/lm_interface.h> |
719ee344 | 23 | #include <linux/time.h> |
b3b94faa DT |
24 | |
25 | #include "gfs2.h" | |
5c676f6d | 26 | #include "incore.h" |
b3b94faa DT |
27 | #include "glock.h" |
28 | #include "inode.h" | |
b3b94faa DT |
29 | #include "log.h" |
30 | #include "mount.h" | |
31 | #include "ops_super.h" | |
b3b94faa DT |
32 | #include "quota.h" |
33 | #include "recovery.h" | |
34 | #include "rgrp.h" | |
35 | #include "super.h" | |
36 | #include "sys.h" | |
5c676f6d | 37 | #include "util.h" |
feaa7bba SW |
38 | #include "trans.h" |
39 | #include "dir.h" | |
40 | #include "eattr.h" | |
41 | #include "bmap.h" | |
719ee344 | 42 | #include "meta_io.h" |
b3b94faa DT |
43 | |
44 | /** | |
45 | * gfs2_write_inode - Make sure the inode is stable on the disk | |
46 | * @inode: The inode | |
47 | * @sync: synchronous write flag | |
48 | * | |
49 | * Returns: errno | |
50 | */ | |
51 | ||
52 | static int gfs2_write_inode(struct inode *inode, int sync) | |
53 | { | |
feaa7bba | 54 | struct gfs2_inode *ip = GFS2_I(inode); |
719ee344 SW |
55 | struct gfs2_sbd *sdp = GFS2_SB(inode); |
56 | struct gfs2_holder gh; | |
57 | struct buffer_head *bh; | |
58 | struct timespec atime; | |
59 | struct gfs2_dinode *di; | |
60 | int ret = 0; | |
61 | ||
62 | /* Check this is a "normal" inode, etc */ | |
63 | if (!test_bit(GIF_USER, &ip->i_flags) || | |
64 | (current->flags & PF_MEMALLOC)) | |
65 | return 0; | |
66 | ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); | |
67 | if (ret) | |
68 | goto do_flush; | |
69 | ret = gfs2_trans_begin(sdp, RES_DINODE, 0); | |
70 | if (ret) | |
71 | goto do_unlock; | |
72 | ret = gfs2_meta_inode_buffer(ip, &bh); | |
73 | if (ret == 0) { | |
74 | di = (struct gfs2_dinode *)bh->b_data; | |
75 | atime.tv_sec = be64_to_cpu(di->di_atime); | |
76 | atime.tv_nsec = be32_to_cpu(di->di_atime_nsec); | |
77 | if (timespec_compare(&inode->i_atime, &atime) > 0) { | |
78 | gfs2_trans_add_bh(ip->i_gl, bh, 1); | |
79 | gfs2_dinode_out(ip, bh->b_data); | |
80 | } | |
81 | brelse(bh); | |
feaa7bba | 82 | } |
719ee344 SW |
83 | gfs2_trans_end(sdp); |
84 | do_unlock: | |
85 | gfs2_glock_dq_uninit(&gh); | |
86 | do_flush: | |
87 | if (sync != 0) | |
88 | gfs2_log_flush(GFS2_SB(inode), ip->i_gl); | |
89 | return ret; | |
b3b94faa DT |
90 | } |
91 | ||
9b8df98f SW |
92 | /** |
93 | * gfs2_make_fs_ro - Turn a Read-Write FS into a Read-Only one | |
94 | * @sdp: the filesystem | |
95 | * | |
96 | * Returns: errno | |
97 | */ | |
98 | ||
99 | static int gfs2_make_fs_ro(struct gfs2_sbd *sdp) | |
100 | { | |
101 | struct gfs2_holder t_gh; | |
102 | int error; | |
103 | ||
104 | gfs2_quota_sync(sdp); | |
105 | gfs2_statfs_sync(sdp); | |
106 | ||
107 | error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE, | |
108 | &t_gh); | |
109 | if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) | |
110 | return error; | |
111 | ||
112 | gfs2_meta_syncfs(sdp); | |
113 | gfs2_log_shutdown(sdp); | |
114 | ||
115 | clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags); | |
116 | ||
117 | if (t_gh.gh_gl) | |
118 | gfs2_glock_dq_uninit(&t_gh); | |
119 | ||
120 | gfs2_quota_cleanup(sdp); | |
121 | ||
122 | return error; | |
123 | } | |
124 | ||
b3b94faa DT |
125 | /** |
126 | * gfs2_put_super - Unmount the filesystem | |
127 | * @sb: The VFS superblock | |
128 | * | |
129 | */ | |
130 | ||
131 | static void gfs2_put_super(struct super_block *sb) | |
132 | { | |
5c676f6d | 133 | struct gfs2_sbd *sdp = sb->s_fs_info; |
b3b94faa DT |
134 | int error; |
135 | ||
b3b94faa DT |
136 | /* Unfreeze the filesystem, if we need to */ |
137 | ||
f55ab26a | 138 | mutex_lock(&sdp->sd_freeze_lock); |
b3b94faa DT |
139 | if (sdp->sd_freeze_count) |
140 | gfs2_glock_dq_uninit(&sdp->sd_freeze_gh); | |
f55ab26a | 141 | mutex_unlock(&sdp->sd_freeze_lock); |
b3b94faa | 142 | |
b3b94faa DT |
143 | kthread_stop(sdp->sd_quotad_process); |
144 | kthread_stop(sdp->sd_logd_process); | |
145 | kthread_stop(sdp->sd_recoverd_process); | |
146 | while (sdp->sd_glockd_num--) | |
147 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); | |
b3b94faa DT |
148 | |
149 | if (!(sb->s_flags & MS_RDONLY)) { | |
150 | error = gfs2_make_fs_ro(sdp); | |
151 | if (error) | |
152 | gfs2_io_error(sdp); | |
153 | } | |
b3b94faa DT |
154 | /* At this point, we're through modifying the disk */ |
155 | ||
156 | /* Release stuff */ | |
157 | ||
f42faf4f SW |
158 | iput(sdp->sd_jindex); |
159 | iput(sdp->sd_inum_inode); | |
160 | iput(sdp->sd_statfs_inode); | |
161 | iput(sdp->sd_rindex); | |
162 | iput(sdp->sd_quota_inode); | |
b3b94faa DT |
163 | |
164 | gfs2_glock_put(sdp->sd_rename_gl); | |
165 | gfs2_glock_put(sdp->sd_trans_gl); | |
166 | ||
167 | if (!sdp->sd_args.ar_spectator) { | |
168 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); | |
169 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); | |
170 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); | |
171 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); | |
b3b94faa | 172 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
f42faf4f SW |
173 | iput(sdp->sd_ir_inode); |
174 | iput(sdp->sd_sc_inode); | |
f42faf4f | 175 | iput(sdp->sd_qc_inode); |
b3b94faa DT |
176 | } |
177 | ||
178 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); | |
b3b94faa DT |
179 | gfs2_clear_rgrpd(sdp); |
180 | gfs2_jindex_free(sdp); | |
b3b94faa | 181 | /* Take apart glock structures and buffer lists */ |
1bdad606 | 182 | gfs2_gl_hash_clear(sdp); |
b3b94faa DT |
183 | /* Unmount the locking protocol */ |
184 | gfs2_lm_unmount(sdp); | |
185 | ||
186 | /* At this point, we're through participating in the lockspace */ | |
b3b94faa | 187 | gfs2_sys_fs_del(sdp); |
ff6af411 | 188 | kfree(sdp); |
b3b94faa DT |
189 | } |
190 | ||
191 | /** | |
4a221953 SW |
192 | * gfs2_write_super |
193 | * @sb: the superblock | |
b3b94faa | 194 | * |
b3b94faa DT |
195 | */ |
196 | ||
197 | static void gfs2_write_super(struct super_block *sb) | |
198 | { | |
4a221953 SW |
199 | sb->s_dirt = 0; |
200 | } | |
201 | ||
202 | /** | |
203 | * gfs2_sync_fs - sync the filesystem | |
204 | * @sb: the superblock | |
205 | * | |
206 | * Flushes the log to disk. | |
207 | */ | |
9b8df98f | 208 | |
4a221953 SW |
209 | static int gfs2_sync_fs(struct super_block *sb, int wait) |
210 | { | |
211 | sb->s_dirt = 0; | |
9171f5a9 | 212 | if (wait && sb->s_fs_info) |
b004157a | 213 | gfs2_log_flush(sb->s_fs_info, NULL); |
4a221953 | 214 | return 0; |
b3b94faa DT |
215 | } |
216 | ||
217 | /** | |
218 | * gfs2_write_super_lockfs - prevent further writes to the filesystem | |
219 | * @sb: the VFS structure for the filesystem | |
220 | * | |
221 | */ | |
222 | ||
223 | static void gfs2_write_super_lockfs(struct super_block *sb) | |
224 | { | |
5c676f6d | 225 | struct gfs2_sbd *sdp = sb->s_fs_info; |
b3b94faa DT |
226 | int error; |
227 | ||
c3780511 DT |
228 | if (test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) |
229 | return; | |
230 | ||
b3b94faa DT |
231 | for (;;) { |
232 | error = gfs2_freeze_fs(sdp); | |
233 | if (!error) | |
234 | break; | |
235 | ||
236 | switch (error) { | |
237 | case -EBUSY: | |
238 | fs_err(sdp, "waiting for recovery before freeze\n"); | |
239 | break; | |
240 | ||
241 | default: | |
242 | fs_err(sdp, "error freezing FS: %d\n", error); | |
243 | break; | |
244 | } | |
245 | ||
246 | fs_err(sdp, "retrying...\n"); | |
247 | msleep(1000); | |
248 | } | |
249 | } | |
250 | ||
251 | /** | |
252 | * gfs2_unlockfs - reallow writes to the filesystem | |
253 | * @sb: the VFS structure for the filesystem | |
254 | * | |
255 | */ | |
256 | ||
257 | static void gfs2_unlockfs(struct super_block *sb) | |
258 | { | |
2bdbc5d7 | 259 | gfs2_unfreeze_fs(sb->s_fs_info); |
b3b94faa DT |
260 | } |
261 | ||
262 | /** | |
263 | * gfs2_statfs - Gather and return stats about the filesystem | |
264 | * @sb: The superblock | |
265 | * @statfsbuf: The buffer | |
266 | * | |
267 | * Returns: 0 on success or error code | |
268 | */ | |
269 | ||
0c0834a3 | 270 | static int gfs2_statfs(struct dentry *dentry, struct kstatfs *buf) |
b3b94faa | 271 | { |
0c0834a3 | 272 | struct super_block *sb = dentry->d_inode->i_sb; |
5c676f6d | 273 | struct gfs2_sbd *sdp = sb->s_fs_info; |
bd209cc0 | 274 | struct gfs2_statfs_change_host sc; |
b3b94faa DT |
275 | int error; |
276 | ||
b3b94faa DT |
277 | if (gfs2_tune_get(sdp, gt_statfs_slow)) |
278 | error = gfs2_statfs_slow(sdp, &sc); | |
279 | else | |
280 | error = gfs2_statfs_i(sdp, &sc); | |
281 | ||
282 | if (error) | |
283 | return error; | |
284 | ||
b3b94faa DT |
285 | buf->f_type = GFS2_MAGIC; |
286 | buf->f_bsize = sdp->sd_sb.sb_bsize; | |
287 | buf->f_blocks = sc.sc_total; | |
288 | buf->f_bfree = sc.sc_free; | |
289 | buf->f_bavail = sc.sc_free; | |
290 | buf->f_files = sc.sc_dinodes + sc.sc_free; | |
291 | buf->f_ffree = sc.sc_free; | |
292 | buf->f_namelen = GFS2_FNAMESIZE; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | /** | |
298 | * gfs2_remount_fs - called when the FS is remounted | |
299 | * @sb: the filesystem | |
300 | * @flags: the remount flags | |
301 | * @data: extra data passed in (not used right now) | |
302 | * | |
303 | * Returns: errno | |
304 | */ | |
305 | ||
306 | static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data) | |
307 | { | |
5c676f6d | 308 | struct gfs2_sbd *sdp = sb->s_fs_info; |
b3b94faa DT |
309 | int error; |
310 | ||
b3b94faa DT |
311 | error = gfs2_mount_args(sdp, data, 1); |
312 | if (error) | |
313 | return error; | |
314 | ||
315 | if (sdp->sd_args.ar_spectator) | |
316 | *flags |= MS_RDONLY; | |
317 | else { | |
318 | if (*flags & MS_RDONLY) { | |
319 | if (!(sb->s_flags & MS_RDONLY)) | |
320 | error = gfs2_make_fs_ro(sdp); | |
321 | } else if (!(*flags & MS_RDONLY) && | |
322 | (sb->s_flags & MS_RDONLY)) { | |
323 | error = gfs2_make_fs_rw(sdp); | |
324 | } | |
325 | } | |
326 | ||
b3b94faa DT |
327 | return error; |
328 | } | |
329 | ||
3b8249f6 SW |
330 | /** |
331 | * gfs2_drop_inode - Drop an inode (test for remote unlink) | |
332 | * @inode: The inode to drop | |
333 | * | |
334 | * If we've received a callback on an iopen lock then its because a | |
335 | * remote node tried to deallocate the inode but failed due to this node | |
336 | * still having the inode open. Here we mark the link count zero | |
337 | * since we know that it must have reached zero if the GLF_DEMOTE flag | |
338 | * is set on the iopen glock. If we didn't do a disk read since the | |
339 | * remote node removed the final link then we might otherwise miss | |
340 | * this event. This check ensures that this node will deallocate the | |
341 | * inode's blocks, or alternatively pass the baton on to another | |
342 | * node for later deallocation. | |
343 | */ | |
9b8df98f | 344 | |
3b8249f6 SW |
345 | static void gfs2_drop_inode(struct inode *inode) |
346 | { | |
091806ed BP |
347 | struct gfs2_inode *ip = GFS2_I(inode); |
348 | ||
349 | if (test_bit(GIF_USER, &ip->i_flags) && inode->i_nlink) { | |
3b8249f6 SW |
350 | struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl; |
351 | if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags)) | |
352 | clear_nlink(inode); | |
353 | } | |
354 | generic_drop_inode(inode); | |
355 | } | |
356 | ||
b3b94faa DT |
357 | /** |
358 | * gfs2_clear_inode - Deallocate an inode when VFS is done with it | |
359 | * @inode: The VFS inode | |
360 | * | |
361 | */ | |
362 | ||
363 | static void gfs2_clear_inode(struct inode *inode) | |
364 | { | |
091806ed BP |
365 | struct gfs2_inode *ip = GFS2_I(inode); |
366 | ||
feaa7bba SW |
367 | /* This tells us its a "real" inode and not one which only |
368 | * serves to contain an address space (see rgrp.c, meta_io.c) | |
369 | * which therefore doesn't have its own glocks. | |
370 | */ | |
091806ed | 371 | if (test_bit(GIF_USER, &ip->i_flags)) { |
feaa7bba | 372 | ip->i_gl->gl_object = NULL; |
b3b94faa | 373 | gfs2_glock_schedule_for_reclaim(ip->i_gl); |
feaa7bba SW |
374 | gfs2_glock_put(ip->i_gl); |
375 | ip->i_gl = NULL; | |
d93cfa98 AD |
376 | if (ip->i_iopen_gh.gh_gl) { |
377 | ip->i_iopen_gh.gh_gl->gl_object = NULL; | |
feaa7bba | 378 | gfs2_glock_dq_uninit(&ip->i_iopen_gh); |
d93cfa98 | 379 | } |
b3b94faa DT |
380 | } |
381 | } | |
382 | ||
9b8df98f SW |
383 | static int is_ancestor(const struct dentry *d1, const struct dentry *d2) |
384 | { | |
385 | do { | |
386 | if (d1 == d2) | |
387 | return 1; | |
388 | d1 = d1->d_parent; | |
389 | } while (!IS_ROOT(d1)); | |
390 | return 0; | |
391 | } | |
392 | ||
b3b94faa DT |
393 | /** |
394 | * gfs2_show_options - Show mount options for /proc/mounts | |
395 | * @s: seq_file structure | |
396 | * @mnt: vfsmount | |
397 | * | |
398 | * Returns: 0 on success or error code | |
399 | */ | |
400 | ||
401 | static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt) | |
402 | { | |
5c676f6d | 403 | struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info; |
b3b94faa DT |
404 | struct gfs2_args *args = &sdp->sd_args; |
405 | ||
9b8df98f SW |
406 | if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir)) |
407 | seq_printf(s, ",meta"); | |
b3b94faa DT |
408 | if (args->ar_lockproto[0]) |
409 | seq_printf(s, ",lockproto=%s", args->ar_lockproto); | |
410 | if (args->ar_locktable[0]) | |
411 | seq_printf(s, ",locktable=%s", args->ar_locktable); | |
412 | if (args->ar_hostdata[0]) | |
413 | seq_printf(s, ",hostdata=%s", args->ar_hostdata); | |
414 | if (args->ar_spectator) | |
415 | seq_printf(s, ",spectator"); | |
416 | if (args->ar_ignore_local_fs) | |
417 | seq_printf(s, ",ignore_local_fs"); | |
418 | if (args->ar_localflocks) | |
419 | seq_printf(s, ",localflocks"); | |
420 | if (args->ar_localcaching) | |
421 | seq_printf(s, ",localcaching"); | |
422 | if (args->ar_debug) | |
423 | seq_printf(s, ",debug"); | |
424 | if (args->ar_upgrade) | |
425 | seq_printf(s, ",upgrade"); | |
426 | if (args->ar_num_glockd != GFS2_GLOCKD_DEFAULT) | |
427 | seq_printf(s, ",num_glockd=%u", args->ar_num_glockd); | |
428 | if (args->ar_posix_acl) | |
429 | seq_printf(s, ",acl"); | |
430 | if (args->ar_quota != GFS2_QUOTA_DEFAULT) { | |
431 | char *state; | |
432 | switch (args->ar_quota) { | |
433 | case GFS2_QUOTA_OFF: | |
434 | state = "off"; | |
435 | break; | |
436 | case GFS2_QUOTA_ACCOUNT: | |
437 | state = "account"; | |
438 | break; | |
439 | case GFS2_QUOTA_ON: | |
440 | state = "on"; | |
441 | break; | |
442 | default: | |
443 | state = "unknown"; | |
444 | break; | |
445 | } | |
446 | seq_printf(s, ",quota=%s", state); | |
447 | } | |
448 | if (args->ar_suiddir) | |
449 | seq_printf(s, ",suiddir"); | |
450 | if (args->ar_data != GFS2_DATA_DEFAULT) { | |
451 | char *state; | |
452 | switch (args->ar_data) { | |
453 | case GFS2_DATA_WRITEBACK: | |
454 | state = "writeback"; | |
455 | break; | |
456 | case GFS2_DATA_ORDERED: | |
457 | state = "ordered"; | |
458 | break; | |
459 | default: | |
460 | state = "unknown"; | |
461 | break; | |
462 | } | |
463 | seq_printf(s, ",data=%s", state); | |
464 | } | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
907b9bce | 469 | /* |
feaa7bba SW |
470 | * We have to (at the moment) hold the inodes main lock to cover |
471 | * the gap between unlocking the shared lock on the iopen lock and | |
472 | * taking the exclusive lock. I'd rather do a shared -> exclusive | |
473 | * conversion on the iopen lock, but we can change that later. This | |
474 | * is safe, just less efficient. | |
475 | */ | |
9b8df98f | 476 | |
feaa7bba SW |
477 | static void gfs2_delete_inode(struct inode *inode) |
478 | { | |
479 | struct gfs2_sbd *sdp = inode->i_sb->s_fs_info; | |
480 | struct gfs2_inode *ip = GFS2_I(inode); | |
481 | struct gfs2_holder gh; | |
482 | int error; | |
483 | ||
091806ed | 484 | if (!test_bit(GIF_USER, &ip->i_flags)) |
feaa7bba SW |
485 | goto out; |
486 | ||
d93cfa98 | 487 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); |
feaa7bba SW |
488 | if (unlikely(error)) { |
489 | gfs2_glock_dq_uninit(&ip->i_iopen_gh); | |
490 | goto out; | |
491 | } | |
492 | ||
d93cfa98 | 493 | gfs2_glock_dq_wait(&ip->i_iopen_gh); |
feaa7bba SW |
494 | gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh); |
495 | error = gfs2_glock_nq(&ip->i_iopen_gh); | |
496 | if (error) | |
497 | goto out_uninit; | |
498 | ||
b60623c2 | 499 | if (S_ISDIR(inode->i_mode) && |
feaa7bba SW |
500 | (ip->i_di.di_flags & GFS2_DIF_EXHASH)) { |
501 | error = gfs2_dir_exhash_dealloc(ip); | |
502 | if (error) | |
503 | goto out_unlock; | |
504 | } | |
505 | ||
506 | if (ip->i_di.di_eattr) { | |
507 | error = gfs2_ea_dealloc(ip); | |
508 | if (error) | |
509 | goto out_unlock; | |
510 | } | |
511 | ||
512 | if (!gfs2_is_stuffed(ip)) { | |
513 | error = gfs2_file_dealloc(ip); | |
514 | if (error) | |
515 | goto out_unlock; | |
516 | } | |
517 | ||
518 | error = gfs2_dinode_dealloc(ip); | |
16615be1 SW |
519 | if (error) |
520 | goto out_unlock; | |
521 | ||
522 | error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks); | |
523 | if (error) | |
524 | goto out_unlock; | |
525 | /* Needs to be done before glock release & also in a transaction */ | |
49686f71 | 526 | truncate_inode_pages(&inode->i_data, 0); |
16615be1 | 527 | gfs2_trans_end(sdp); |
feaa7bba SW |
528 | |
529 | out_unlock: | |
530 | gfs2_glock_dq(&ip->i_iopen_gh); | |
531 | out_uninit: | |
532 | gfs2_holder_uninit(&ip->i_iopen_gh); | |
533 | gfs2_glock_dq_uninit(&gh); | |
3b8249f6 | 534 | if (error && error != GLR_TRYFAILED) |
feaa7bba SW |
535 | fs_warn(sdp, "gfs2_delete_inode: %d\n", error); |
536 | out: | |
537 | truncate_inode_pages(&inode->i_data, 0); | |
538 | clear_inode(inode); | |
539 | } | |
540 | ||
320dd101 SW |
541 | static struct inode *gfs2_alloc_inode(struct super_block *sb) |
542 | { | |
320dd101 SW |
543 | struct gfs2_inode *ip; |
544 | ||
545 | ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL); | |
546 | if (ip) { | |
547 | ip->i_flags = 0; | |
548 | ip->i_gl = NULL; | |
320dd101 SW |
549 | } |
550 | return &ip->i_inode; | |
551 | } | |
552 | ||
553 | static void gfs2_destroy_inode(struct inode *inode) | |
554 | { | |
555 | kmem_cache_free(gfs2_inode_cachep, inode); | |
556 | } | |
557 | ||
ee9b6d61 | 558 | const struct super_operations gfs2_super_ops = { |
4a221953 SW |
559 | .alloc_inode = gfs2_alloc_inode, |
560 | .destroy_inode = gfs2_destroy_inode, | |
561 | .write_inode = gfs2_write_inode, | |
562 | .delete_inode = gfs2_delete_inode, | |
563 | .put_super = gfs2_put_super, | |
564 | .write_super = gfs2_write_super, | |
565 | .sync_fs = gfs2_sync_fs, | |
566 | .write_super_lockfs = gfs2_write_super_lockfs, | |
567 | .unlockfs = gfs2_unlockfs, | |
568 | .statfs = gfs2_statfs, | |
569 | .remount_fs = gfs2_remount_fs, | |
570 | .clear_inode = gfs2_clear_inode, | |
3b8249f6 | 571 | .drop_inode = gfs2_drop_inode, |
4a221953 | 572 | .show_options = gfs2_show_options, |
b3b94faa DT |
573 | }; |
574 |