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-rw-r--r--fs/gfs2/ops_super.c757
1 files changed, 0 insertions, 757 deletions
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
deleted file mode 100644
index 2fd1dcbcc5b7..000000000000
--- a/fs/gfs2/ops_super.c
+++ /dev/null
@@ -1,757 +0,0 @@
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
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
7 * of the GNU General Public License version 2.
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>
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>
20#include <linux/gfs2_ondisk.h>
21#include <linux/crc32.h>
22#include <linux/time.h>
23
24#include "gfs2.h"
25#include "incore.h"
26#include "glock.h"
27#include "inode.h"
28#include "log.h"
29#include "quota.h"
30#include "recovery.h"
31#include "rgrp.h"
32#include "super.h"
33#include "sys.h"
34#include "util.h"
35#include "trans.h"
36#include "dir.h"
37#include "eattr.h"
38#include "bmap.h"
39#include "meta_io.h"
40
41#define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x)
42
43/**
44 * gfs2_write_inode - Make sure the inode is stable on the disk
45 * @inode: The inode
46 * @sync: synchronous write flag
47 *
48 * Returns: errno
49 */
50
51static int gfs2_write_inode(struct inode *inode, int sync)
52{
53 struct gfs2_inode *ip = GFS2_I(inode);
54 struct gfs2_sbd *sdp = GFS2_SB(inode);
55 struct gfs2_holder gh;
56 struct buffer_head *bh;
57 struct timespec atime;
58 struct gfs2_dinode *di;
59 int ret = 0;
60
61 /* Check this is a "normal" inode, etc */
62 if (!test_bit(GIF_USER, &ip->i_flags) ||
63 (current->flags & PF_MEMALLOC))
64 return 0;
65 ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
66 if (ret)
67 goto do_flush;
68 ret = gfs2_trans_begin(sdp, RES_DINODE, 0);
69 if (ret)
70 goto do_unlock;
71 ret = gfs2_meta_inode_buffer(ip, &bh);
72 if (ret == 0) {
73 di = (struct gfs2_dinode *)bh->b_data;
74 atime.tv_sec = be64_to_cpu(di->di_atime);
75 atime.tv_nsec = be32_to_cpu(di->di_atime_nsec);
76 if (timespec_compare(&inode->i_atime, &atime) > 0) {
77 gfs2_trans_add_bh(ip->i_gl, bh, 1);
78 gfs2_dinode_out(ip, bh->b_data);
79 }
80 brelse(bh);
81 }
82 gfs2_trans_end(sdp);
83do_unlock:
84 gfs2_glock_dq_uninit(&gh);
85do_flush:
86 if (sync != 0)
87 gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
88 return ret;
89}
90
91/**
92 * gfs2_make_fs_ro - Turn a Read-Write FS into a Read-Only one
93 * @sdp: the filesystem
94 *
95 * Returns: errno
96 */
97
98static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
99{
100 struct gfs2_holder t_gh;
101 int error;
102
103 gfs2_quota_sync(sdp);
104 gfs2_statfs_sync(sdp);
105
106 error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE,
107 &t_gh);
108 if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
109 return error;
110
111 gfs2_meta_syncfs(sdp);
112 gfs2_log_shutdown(sdp);
113
114 clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
115
116 if (t_gh.gh_gl)
117 gfs2_glock_dq_uninit(&t_gh);
118
119 gfs2_quota_cleanup(sdp);
120
121 return error;
122}
123
124static int gfs2_umount_recovery_wait(void *word)
125{
126 schedule();
127 return 0;
128}
129
130/**
131 * gfs2_put_super - Unmount the filesystem
132 * @sb: The VFS superblock
133 *
134 */
135
136static void gfs2_put_super(struct super_block *sb)
137{
138 struct gfs2_sbd *sdp = sb->s_fs_info;
139 int error;
140 struct gfs2_jdesc *jd;
141
142 /* Unfreeze the filesystem, if we need to */
143
144 mutex_lock(&sdp->sd_freeze_lock);
145 if (sdp->sd_freeze_count)
146 gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
147 mutex_unlock(&sdp->sd_freeze_lock);
148
149 /* No more recovery requests */
150 set_bit(SDF_NORECOVERY, &sdp->sd_flags);
151 smp_mb();
152
153 /* Wait on outstanding recovery */
154restart:
155 spin_lock(&sdp->sd_jindex_spin);
156 list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
157 if (!test_bit(JDF_RECOVERY, &jd->jd_flags))
158 continue;
159 spin_unlock(&sdp->sd_jindex_spin);
160 wait_on_bit(&jd->jd_flags, JDF_RECOVERY,
161 gfs2_umount_recovery_wait, TASK_UNINTERRUPTIBLE);
162 goto restart;
163 }
164 spin_unlock(&sdp->sd_jindex_spin);
165
166 kthread_stop(sdp->sd_quotad_process);
167 kthread_stop(sdp->sd_logd_process);
168
169 if (!(sb->s_flags & MS_RDONLY)) {
170 error = gfs2_make_fs_ro(sdp);
171 if (error)
172 gfs2_io_error(sdp);
173 }
174 /* At this point, we're through modifying the disk */
175
176 /* Release stuff */
177
178 iput(sdp->sd_jindex);
179 iput(sdp->sd_inum_inode);
180 iput(sdp->sd_statfs_inode);
181 iput(sdp->sd_rindex);
182 iput(sdp->sd_quota_inode);
183
184 gfs2_glock_put(sdp->sd_rename_gl);
185 gfs2_glock_put(sdp->sd_trans_gl);
186
187 if (!sdp->sd_args.ar_spectator) {
188 gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
189 gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
190 gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
191 gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
192 gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
193 iput(sdp->sd_ir_inode);
194 iput(sdp->sd_sc_inode);
195 iput(sdp->sd_qc_inode);
196 }
197
198 gfs2_glock_dq_uninit(&sdp->sd_live_gh);
199 gfs2_clear_rgrpd(sdp);
200 gfs2_jindex_free(sdp);
201 /* Take apart glock structures and buffer lists */
202 gfs2_gl_hash_clear(sdp);
203 /* Unmount the locking protocol */
204 gfs2_lm_unmount(sdp);
205
206 /* At this point, we're through participating in the lockspace */
207 gfs2_sys_fs_del(sdp);
208}
209
210/**
211 * gfs2_write_super
212 * @sb: the superblock
213 *
214 */
215
216static void gfs2_write_super(struct super_block *sb)
217{
218 sb->s_dirt = 0;
219}
220
221/**
222 * gfs2_sync_fs - sync the filesystem
223 * @sb: the superblock
224 *
225 * Flushes the log to disk.
226 */
227
228static int gfs2_sync_fs(struct super_block *sb, int wait)
229{
230 sb->s_dirt = 0;
231 if (wait && sb->s_fs_info)
232 gfs2_log_flush(sb->s_fs_info, NULL);
233 return 0;
234}
235
236/**
237 * gfs2_freeze - prevent further writes to the filesystem
238 * @sb: the VFS structure for the filesystem
239 *
240 */
241
242static int gfs2_freeze(struct super_block *sb)
243{
244 struct gfs2_sbd *sdp = sb->s_fs_info;
245 int error;
246
247 if (test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
248 return -EINVAL;
249
250 for (;;) {
251 error = gfs2_freeze_fs(sdp);
252 if (!error)
253 break;
254
255 switch (error) {
256 case -EBUSY:
257 fs_err(sdp, "waiting for recovery before freeze\n");
258 break;
259
260 default:
261 fs_err(sdp, "error freezing FS: %d\n", error);
262 break;
263 }
264
265 fs_err(sdp, "retrying...\n");
266 msleep(1000);
267 }
268 return 0;
269}
270
271/**
272 * gfs2_unfreeze - reallow writes to the filesystem
273 * @sb: the VFS structure for the filesystem
274 *
275 */
276
277static int gfs2_unfreeze(struct super_block *sb)
278{
279 gfs2_unfreeze_fs(sb->s_fs_info);
280 return 0;
281}
282
283/**
284 * statfs_fill - fill in the sg for a given RG
285 * @rgd: the RG
286 * @sc: the sc structure
287 *
288 * Returns: 0 on success, -ESTALE if the LVB is invalid
289 */
290
291static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
292 struct gfs2_statfs_change_host *sc)
293{
294 gfs2_rgrp_verify(rgd);
295 sc->sc_total += rgd->rd_data;
296 sc->sc_free += rgd->rd_free;
297 sc->sc_dinodes += rgd->rd_dinodes;
298 return 0;
299}
300
301/**
302 * gfs2_statfs_slow - Stat a filesystem using asynchronous locking
303 * @sdp: the filesystem
304 * @sc: the sc info that will be returned
305 *
306 * Any error (other than a signal) will cause this routine to fall back
307 * to the synchronous version.
308 *
309 * FIXME: This really shouldn't busy wait like this.
310 *
311 * Returns: errno
312 */
313
314static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
315{
316 struct gfs2_holder ri_gh;
317 struct gfs2_rgrpd *rgd_next;
318 struct gfs2_holder *gha, *gh;
319 unsigned int slots = 64;
320 unsigned int x;
321 int done;
322 int error = 0, err;
323
324 memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
325 gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
326 if (!gha)
327 return -ENOMEM;
328
329 error = gfs2_rindex_hold(sdp, &ri_gh);
330 if (error)
331 goto out;
332
333 rgd_next = gfs2_rgrpd_get_first(sdp);
334
335 for (;;) {
336 done = 1;
337
338 for (x = 0; x < slots; x++) {
339 gh = gha + x;
340
341 if (gh->gh_gl && gfs2_glock_poll(gh)) {
342 err = gfs2_glock_wait(gh);
343 if (err) {
344 gfs2_holder_uninit(gh);
345 error = err;
346 } else {
347 if (!error)
348 error = statfs_slow_fill(
349 gh->gh_gl->gl_object, sc);
350 gfs2_glock_dq_uninit(gh);
351 }
352 }
353
354 if (gh->gh_gl)
355 done = 0;
356 else if (rgd_next && !error) {
357 error = gfs2_glock_nq_init(rgd_next->rd_gl,
358 LM_ST_SHARED,
359 GL_ASYNC,
360 gh);
361 rgd_next = gfs2_rgrpd_get_next(rgd_next);
362 done = 0;
363 }
364
365 if (signal_pending(current))
366 error = -ERESTARTSYS;
367 }
368
369 if (done)
370 break;
371
372 yield();
373 }
374
375 gfs2_glock_dq_uninit(&ri_gh);
376
377out:
378 kfree(gha);
379 return error;
380}
381
382/**
383 * gfs2_statfs_i - Do a statfs
384 * @sdp: the filesystem
385 * @sg: the sg structure
386 *
387 * Returns: errno
388 */
389
390static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
391{
392 struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
393 struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
394
395 spin_lock(&sdp->sd_statfs_spin);
396
397 *sc = *m_sc;
398 sc->sc_total += l_sc->sc_total;
399 sc->sc_free += l_sc->sc_free;
400 sc->sc_dinodes += l_sc->sc_dinodes;
401
402 spin_unlock(&sdp->sd_statfs_spin);
403
404 if (sc->sc_free < 0)
405 sc->sc_free = 0;
406 if (sc->sc_free > sc->sc_total)
407 sc->sc_free = sc->sc_total;
408 if (sc->sc_dinodes < 0)
409 sc->sc_dinodes = 0;
410
411 return 0;
412}
413
414/**
415 * gfs2_statfs - Gather and return stats about the filesystem
416 * @sb: The superblock
417 * @statfsbuf: The buffer
418 *
419 * Returns: 0 on success or error code
420 */
421
422static int gfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
423{
424 struct super_block *sb = dentry->d_inode->i_sb;
425 struct gfs2_sbd *sdp = sb->s_fs_info;
426 struct gfs2_statfs_change_host sc;
427 int error;
428
429 if (gfs2_tune_get(sdp, gt_statfs_slow))
430 error = gfs2_statfs_slow(sdp, &sc);
431 else
432 error = gfs2_statfs_i(sdp, &sc);
433
434 if (error)
435 return error;
436
437 buf->f_type = GFS2_MAGIC;
438 buf->f_bsize = sdp->sd_sb.sb_bsize;
439 buf->f_blocks = sc.sc_total;
440 buf->f_bfree = sc.sc_free;
441 buf->f_bavail = sc.sc_free;
442 buf->f_files = sc.sc_dinodes + sc.sc_free;
443 buf->f_ffree = sc.sc_free;
444 buf->f_namelen = GFS2_FNAMESIZE;
445
446 return 0;
447}
448
449/**
450 * gfs2_remount_fs - called when the FS is remounted
451 * @sb: the filesystem
452 * @flags: the remount flags
453 * @data: extra data passed in (not used right now)
454 *
455 * Returns: errno
456 */
457
458static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
459{
460 struct gfs2_sbd *sdp = sb->s_fs_info;
461 struct gfs2_args args = sdp->sd_args; /* Default to current settings */
462 struct gfs2_tune *gt = &sdp->sd_tune;
463 int error;
464
465 spin_lock(&gt->gt_spin);
466 args.ar_commit = gt->gt_log_flush_secs;
467 spin_unlock(&gt->gt_spin);
468 error = gfs2_mount_args(sdp, &args, data);
469 if (error)
470 return error;
471
472 /* Not allowed to change locking details */
473 if (strcmp(args.ar_lockproto, sdp->sd_args.ar_lockproto) ||
474 strcmp(args.ar_locktable, sdp->sd_args.ar_locktable) ||
475 strcmp(args.ar_hostdata, sdp->sd_args.ar_hostdata))
476 return -EINVAL;
477
478 /* Some flags must not be changed */
479 if (args_neq(&args, &sdp->sd_args, spectator) ||
480 args_neq(&args, &sdp->sd_args, ignore_local_fs) ||
481 args_neq(&args, &sdp->sd_args, localflocks) ||
482 args_neq(&args, &sdp->sd_args, localcaching) ||
483 args_neq(&args, &sdp->sd_args, meta))
484 return -EINVAL;
485
486 if (sdp->sd_args.ar_spectator)
487 *flags |= MS_RDONLY;
488
489 if ((sb->s_flags ^ *flags) & MS_RDONLY) {
490 if (*flags & MS_RDONLY)
491 error = gfs2_make_fs_ro(sdp);
492 else
493 error = gfs2_make_fs_rw(sdp);
494 if (error)
495 return error;
496 }
497
498 sdp->sd_args = args;
499 if (sdp->sd_args.ar_posix_acl)
500 sb->s_flags |= MS_POSIXACL;
501 else
502 sb->s_flags &= ~MS_POSIXACL;
503 spin_lock(&gt->gt_spin);
504 gt->gt_log_flush_secs = args.ar_commit;
505 spin_unlock(&gt->gt_spin);
506
507 return 0;
508}
509
510/**
511 * gfs2_drop_inode - Drop an inode (test for remote unlink)
512 * @inode: The inode to drop
513 *
514 * If we've received a callback on an iopen lock then its because a
515 * remote node tried to deallocate the inode but failed due to this node
516 * still having the inode open. Here we mark the link count zero
517 * since we know that it must have reached zero if the GLF_DEMOTE flag
518 * is set on the iopen glock. If we didn't do a disk read since the
519 * remote node removed the final link then we might otherwise miss
520 * this event. This check ensures that this node will deallocate the
521 * inode's blocks, or alternatively pass the baton on to another
522 * node for later deallocation.
523 */
524
525static void gfs2_drop_inode(struct inode *inode)
526{
527 struct gfs2_inode *ip = GFS2_I(inode);
528
529 if (test_bit(GIF_USER, &ip->i_flags) && inode->i_nlink) {
530 struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
531 if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags))
532 clear_nlink(inode);
533 }
534 generic_drop_inode(inode);
535}
536
537/**
538 * gfs2_clear_inode - Deallocate an inode when VFS is done with it
539 * @inode: The VFS inode
540 *
541 */
542
543static void gfs2_clear_inode(struct inode *inode)
544{
545 struct gfs2_inode *ip = GFS2_I(inode);
546
547 /* This tells us its a "real" inode and not one which only
548 * serves to contain an address space (see rgrp.c, meta_io.c)
549 * which therefore doesn't have its own glocks.
550 */
551 if (test_bit(GIF_USER, &ip->i_flags)) {
552 ip->i_gl->gl_object = NULL;
553 gfs2_glock_put(ip->i_gl);
554 ip->i_gl = NULL;
555 if (ip->i_iopen_gh.gh_gl) {
556 ip->i_iopen_gh.gh_gl->gl_object = NULL;
557 gfs2_glock_dq_uninit(&ip->i_iopen_gh);
558 }
559 }
560}
561
562static int is_ancestor(const struct dentry *d1, const struct dentry *d2)
563{
564 do {
565 if (d1 == d2)
566 return 1;
567 d1 = d1->d_parent;
568 } while (!IS_ROOT(d1));
569 return 0;
570}
571
572/**
573 * gfs2_show_options - Show mount options for /proc/mounts
574 * @s: seq_file structure
575 * @mnt: vfsmount
576 *
577 * Returns: 0 on success or error code
578 */
579
580static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
581{
582 struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info;
583 struct gfs2_args *args = &sdp->sd_args;
584 int lfsecs;
585
586 if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir))
587 seq_printf(s, ",meta");
588 if (args->ar_lockproto[0])
589 seq_printf(s, ",lockproto=%s", args->ar_lockproto);
590 if (args->ar_locktable[0])
591 seq_printf(s, ",locktable=%s", args->ar_locktable);
592 if (args->ar_hostdata[0])
593 seq_printf(s, ",hostdata=%s", args->ar_hostdata);
594 if (args->ar_spectator)
595 seq_printf(s, ",spectator");
596 if (args->ar_ignore_local_fs)
597 seq_printf(s, ",ignore_local_fs");
598 if (args->ar_localflocks)
599 seq_printf(s, ",localflocks");
600 if (args->ar_localcaching)
601 seq_printf(s, ",localcaching");
602 if (args->ar_debug)
603 seq_printf(s, ",debug");
604 if (args->ar_upgrade)
605 seq_printf(s, ",upgrade");
606 if (args->ar_posix_acl)
607 seq_printf(s, ",acl");
608 if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
609 char *state;
610 switch (args->ar_quota) {
611 case GFS2_QUOTA_OFF:
612 state = "off";
613 break;
614 case GFS2_QUOTA_ACCOUNT:
615 state = "account";
616 break;
617 case GFS2_QUOTA_ON:
618 state = "on";
619 break;
620 default:
621 state = "unknown";
622 break;
623 }
624 seq_printf(s, ",quota=%s", state);
625 }
626 if (args->ar_suiddir)
627 seq_printf(s, ",suiddir");
628 if (args->ar_data != GFS2_DATA_DEFAULT) {
629 char *state;
630 switch (args->ar_data) {
631 case GFS2_DATA_WRITEBACK:
632 state = "writeback";
633 break;
634 case GFS2_DATA_ORDERED:
635 state = "ordered";
636 break;
637 default:
638 state = "unknown";
639 break;
640 }
641 seq_printf(s, ",data=%s", state);
642 }
643 if (args->ar_discard)
644 seq_printf(s, ",discard");
645 lfsecs = sdp->sd_tune.gt_log_flush_secs;
646 if (lfsecs != 60)
647 seq_printf(s, ",commit=%d", lfsecs);
648 return 0;
649}
650
651/*
652 * We have to (at the moment) hold the inodes main lock to cover
653 * the gap between unlocking the shared lock on the iopen lock and
654 * taking the exclusive lock. I'd rather do a shared -> exclusive
655 * conversion on the iopen lock, but we can change that later. This
656 * is safe, just less efficient.
657 */
658
659static void gfs2_delete_inode(struct inode *inode)
660{
661 struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
662 struct gfs2_inode *ip = GFS2_I(inode);
663 struct gfs2_holder gh;
664 int error;
665
666 if (!test_bit(GIF_USER, &ip->i_flags))
667 goto out;
668
669 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
670 if (unlikely(error)) {
671 gfs2_glock_dq_uninit(&ip->i_iopen_gh);
672 goto out;
673 }
674
675 gfs2_glock_dq_wait(&ip->i_iopen_gh);
676 gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
677 error = gfs2_glock_nq(&ip->i_iopen_gh);
678 if (error)
679 goto out_truncate;
680
681 if (S_ISDIR(inode->i_mode) &&
682 (ip->i_diskflags & GFS2_DIF_EXHASH)) {
683 error = gfs2_dir_exhash_dealloc(ip);
684 if (error)
685 goto out_unlock;
686 }
687
688 if (ip->i_eattr) {
689 error = gfs2_ea_dealloc(ip);
690 if (error)
691 goto out_unlock;
692 }
693
694 if (!gfs2_is_stuffed(ip)) {
695 error = gfs2_file_dealloc(ip);
696 if (error)
697 goto out_unlock;
698 }
699
700 error = gfs2_dinode_dealloc(ip);
701 if (error)
702 goto out_unlock;
703
704out_truncate:
705 error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
706 if (error)
707 goto out_unlock;
708 /* Needs to be done before glock release & also in a transaction */
709 truncate_inode_pages(&inode->i_data, 0);
710 gfs2_trans_end(sdp);
711
712out_unlock:
713 if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
714 gfs2_glock_dq(&ip->i_iopen_gh);
715 gfs2_holder_uninit(&ip->i_iopen_gh);
716 gfs2_glock_dq_uninit(&gh);
717 if (error && error != GLR_TRYFAILED && error != -EROFS)
718 fs_warn(sdp, "gfs2_delete_inode: %d\n", error);
719out:
720 truncate_inode_pages(&inode->i_data, 0);
721 clear_inode(inode);
722}
723
724static struct inode *gfs2_alloc_inode(struct super_block *sb)
725{
726 struct gfs2_inode *ip;
727
728 ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL);
729 if (ip) {
730 ip->i_flags = 0;
731 ip->i_gl = NULL;
732 }
733 return &ip->i_inode;
734}
735
736static void gfs2_destroy_inode(struct inode *inode)
737{
738 kmem_cache_free(gfs2_inode_cachep, inode);
739}
740
741const struct super_operations gfs2_super_ops = {
742 .alloc_inode = gfs2_alloc_inode,
743 .destroy_inode = gfs2_destroy_inode,
744 .write_inode = gfs2_write_inode,
745 .delete_inode = gfs2_delete_inode,
746 .put_super = gfs2_put_super,
747 .write_super = gfs2_write_super,
748 .sync_fs = gfs2_sync_fs,
749 .freeze_fs = gfs2_freeze,
750 .unfreeze_fs = gfs2_unfreeze,
751 .statfs = gfs2_statfs,
752 .remount_fs = gfs2_remount_fs,
753 .clear_inode = gfs2_clear_inode,
754 .drop_inode = gfs2_drop_inode,
755 .show_options = gfs2_show_options,
756};
757
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-14 19:36:04 -0500