1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
7 #include <linux/spinlock.h>
8 #include <linux/completion.h>
9 #include <linux/buffer_head.h>
10 #include <linux/gfs2_ondisk.h>
11 #include <linux/bio.h>
12 #include <linux/posix_acl.h>
13 #include <linux/security.h>
30 struct workqueue_struct *gfs2_freeze_wq;
32 extern struct workqueue_struct *gfs2_control_wq;
34 static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh)
36 fs_err(gl->gl_name.ln_sbd,
37 "AIL buffer %p: blocknr %llu state 0x%08lx mapping %p page "
39 bh, (unsigned long long)bh->b_blocknr, bh->b_state,
40 bh->b_page->mapping, bh->b_page->flags);
41 fs_err(gl->gl_name.ln_sbd, "AIL glock %u:%llu mapping %p\n",
42 gl->gl_name.ln_type, gl->gl_name.ln_number,
43 gfs2_glock2aspace(gl));
44 gfs2_lm(gl->gl_name.ln_sbd, "AIL error\n");
45 gfs2_withdraw(gl->gl_name.ln_sbd);
49 * __gfs2_ail_flush - remove all buffers for a given lock from the AIL
51 * @fsync: set when called from fsync (not all buffers will be clean)
52 * @nr_revokes: Number of buffers to revoke
54 * None of the buffers should be dirty, locked, or pinned.
57 static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
58 unsigned int nr_revokes)
60 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
61 struct list_head *head = &gl->gl_ail_list;
62 struct gfs2_bufdata *bd, *tmp;
63 struct buffer_head *bh;
64 const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock);
67 spin_lock(&sdp->sd_ail_lock);
68 list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) {
72 if (bh->b_state & b_state) {
75 gfs2_ail_error(gl, bh);
77 gfs2_trans_add_revoke(sdp, bd);
80 GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
81 spin_unlock(&sdp->sd_ail_lock);
86 static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
88 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
93 revokes = atomic_read(&gl->gl_ail_count);
100 * We have nothing on the ail, but there could be revokes on
101 * the sdp revoke queue, in which case, we still want to flush
102 * the log and wait for it to finish.
104 * If the sdp revoke list is empty too, we might still have an
105 * io outstanding for writing revokes, so we should wait for
106 * it before returning.
108 * If none of these conditions are true, our revokes are all
109 * flushed and we can return.
112 have_revokes = !list_empty(&sdp->sd_log_revokes);
113 log_in_flight = atomic_read(&sdp->sd_log_in_flight);
114 gfs2_log_unlock(sdp);
122 memset(&tr, 0, sizeof(tr));
123 set_bit(TR_ONSTACK, &tr.tr_flags);
124 ret = __gfs2_trans_begin(&tr, sdp, 0, revokes, _RET_IP_);
127 __gfs2_ail_flush(gl, 0, revokes);
131 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
132 GFS2_LFC_AIL_EMPTY_GL);
136 void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
138 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
139 unsigned int revokes = atomic_read(&gl->gl_ail_count);
145 ret = gfs2_trans_begin(sdp, 0, revokes);
148 __gfs2_ail_flush(gl, fsync, revokes);
150 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
155 * gfs2_rgrp_metasync - sync out the metadata of a resource group
156 * @gl: the glock protecting the resource group
160 static int gfs2_rgrp_metasync(struct gfs2_glock *gl)
162 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
163 struct address_space *metamapping = &sdp->sd_aspace;
164 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
165 const unsigned bsize = sdp->sd_sb.sb_bsize;
166 loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
167 loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
170 filemap_fdatawrite_range(metamapping, start, end);
171 error = filemap_fdatawait_range(metamapping, start, end);
172 WARN_ON_ONCE(error && !gfs2_withdrawn(sdp));
173 mapping_set_error(metamapping, error);
180 * rgrp_go_sync - sync out the metadata for this glock
183 * Called when demoting or unlocking an EX glock. We must flush
184 * to disk all dirty buffers/pages relating to this glock, and must not
185 * return to caller to demote/unlock the glock until I/O is complete.
188 static int rgrp_go_sync(struct gfs2_glock *gl)
190 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
191 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
194 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
196 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
198 gfs2_log_flush(sdp, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
199 GFS2_LFC_RGRP_GO_SYNC);
200 error = gfs2_rgrp_metasync(gl);
202 error = gfs2_ail_empty_gl(gl);
203 gfs2_free_clones(rgd);
208 * rgrp_go_inval - invalidate the metadata for this glock
212 * We never used LM_ST_DEFERRED with resource groups, so that we
213 * should always see the metadata flag set here.
217 static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
219 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
220 struct address_space *mapping = &sdp->sd_aspace;
221 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
222 const unsigned bsize = sdp->sd_sb.sb_bsize;
223 loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
224 loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
226 gfs2_rgrp_brelse(rgd);
227 WARN_ON_ONCE(!(flags & DIO_METADATA));
228 truncate_inode_pages_range(mapping, start, end);
229 rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
232 static void gfs2_rgrp_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
233 const char *fs_id_buf)
235 struct gfs2_rgrpd *rgd = gl->gl_object;
238 gfs2_rgrp_dump(seq, rgd, fs_id_buf);
241 static struct gfs2_inode *gfs2_glock2inode(struct gfs2_glock *gl)
243 struct gfs2_inode *ip;
245 spin_lock(&gl->gl_lockref.lock);
248 set_bit(GIF_GLOP_PENDING, &ip->i_flags);
249 spin_unlock(&gl->gl_lockref.lock);
253 struct gfs2_rgrpd *gfs2_glock2rgrp(struct gfs2_glock *gl)
255 struct gfs2_rgrpd *rgd;
257 spin_lock(&gl->gl_lockref.lock);
259 spin_unlock(&gl->gl_lockref.lock);
264 static void gfs2_clear_glop_pending(struct gfs2_inode *ip)
269 clear_bit_unlock(GIF_GLOP_PENDING, &ip->i_flags);
270 wake_up_bit(&ip->i_flags, GIF_GLOP_PENDING);
274 * gfs2_inode_metasync - sync out the metadata of an inode
275 * @gl: the glock protecting the inode
278 int gfs2_inode_metasync(struct gfs2_glock *gl)
280 struct address_space *metamapping = gfs2_glock2aspace(gl);
283 filemap_fdatawrite(metamapping);
284 error = filemap_fdatawait(metamapping);
286 gfs2_io_error(gl->gl_name.ln_sbd);
291 * inode_go_sync - Sync the dirty metadata of an inode
292 * @gl: the glock protecting the inode
296 static int inode_go_sync(struct gfs2_glock *gl)
298 struct gfs2_inode *ip = gfs2_glock2inode(gl);
299 int isreg = ip && S_ISREG(ip->i_inode.i_mode);
300 struct address_space *metamapping = gfs2_glock2aspace(gl);
304 if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
305 unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
306 inode_dio_wait(&ip->i_inode);
308 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
311 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
313 gfs2_log_flush(gl->gl_name.ln_sbd, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
314 GFS2_LFC_INODE_GO_SYNC);
315 filemap_fdatawrite(metamapping);
317 struct address_space *mapping = ip->i_inode.i_mapping;
318 filemap_fdatawrite(mapping);
319 error = filemap_fdatawait(mapping);
320 mapping_set_error(mapping, error);
322 ret = gfs2_inode_metasync(gl);
325 gfs2_ail_empty_gl(gl);
327 * Writeback of the data mapping may cause the dirty flag to be set
328 * so we have to clear it again here.
330 smp_mb__before_atomic();
331 clear_bit(GLF_DIRTY, &gl->gl_flags);
334 gfs2_clear_glop_pending(ip);
339 * inode_go_inval - prepare a inode glock to be released
343 * Normally we invalidate everything, but if we are moving into
344 * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we
345 * can keep hold of the metadata, since it won't have changed.
349 static void inode_go_inval(struct gfs2_glock *gl, int flags)
351 struct gfs2_inode *ip = gfs2_glock2inode(gl);
353 if (flags & DIO_METADATA) {
354 struct address_space *mapping = gfs2_glock2aspace(gl);
355 truncate_inode_pages(mapping, 0);
357 set_bit(GIF_INVALID, &ip->i_flags);
358 forget_all_cached_acls(&ip->i_inode);
359 security_inode_invalidate_secctx(&ip->i_inode);
360 gfs2_dir_hash_inval(ip);
364 if (ip == GFS2_I(gl->gl_name.ln_sbd->sd_rindex)) {
365 gfs2_log_flush(gl->gl_name.ln_sbd, NULL,
366 GFS2_LOG_HEAD_FLUSH_NORMAL |
367 GFS2_LFC_INODE_GO_INVAL);
368 gl->gl_name.ln_sbd->sd_rindex_uptodate = 0;
370 if (ip && S_ISREG(ip->i_inode.i_mode))
371 truncate_inode_pages(ip->i_inode.i_mapping, 0);
373 gfs2_clear_glop_pending(ip);
377 * inode_go_demote_ok - Check to see if it's ok to unlock an inode glock
380 * Returns: 1 if it's ok
383 static int inode_go_demote_ok(const struct gfs2_glock *gl)
385 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
387 if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
393 static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
395 const struct gfs2_dinode *str = buf;
396 struct timespec64 atime;
398 umode_t mode = be32_to_cpu(str->di_mode);
399 bool is_new = ip->i_inode.i_state & I_NEW;
401 if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
403 if (unlikely(!is_new && inode_wrong_type(&ip->i_inode, mode)))
405 ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
406 ip->i_inode.i_mode = mode;
408 ip->i_inode.i_rdev = 0;
409 switch (mode & S_IFMT) {
412 ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major),
413 be32_to_cpu(str->di_minor));
418 i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid));
419 i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid));
420 set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink));
421 i_size_write(&ip->i_inode, be64_to_cpu(str->di_size));
422 gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
423 atime.tv_sec = be64_to_cpu(str->di_atime);
424 atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
425 if (timespec64_compare(&ip->i_inode.i_atime, &atime) < 0)
426 ip->i_inode.i_atime = atime;
427 ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
428 ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec);
429 ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime);
430 ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
432 ip->i_goal = be64_to_cpu(str->di_goal_meta);
433 ip->i_generation = be64_to_cpu(str->di_generation);
435 ip->i_diskflags = be32_to_cpu(str->di_flags);
436 ip->i_eattr = be64_to_cpu(str->di_eattr);
437 /* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
438 gfs2_set_inode_flags(&ip->i_inode);
439 height = be16_to_cpu(str->di_height);
440 if (unlikely(height > GFS2_MAX_META_HEIGHT))
442 ip->i_height = (u8)height;
444 depth = be16_to_cpu(str->di_depth);
445 if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
447 ip->i_depth = (u8)depth;
448 ip->i_entries = be32_to_cpu(str->di_entries);
450 if (S_ISREG(ip->i_inode.i_mode))
451 gfs2_set_aops(&ip->i_inode);
455 gfs2_consist_inode(ip);
460 * gfs2_inode_refresh - Refresh the incore copy of the dinode
461 * @ip: The GFS2 inode
466 int gfs2_inode_refresh(struct gfs2_inode *ip)
468 struct buffer_head *dibh;
471 error = gfs2_meta_inode_buffer(ip, &dibh);
475 error = gfs2_dinode_in(ip, dibh->b_data);
477 clear_bit(GIF_INVALID, &ip->i_flags);
483 * inode_go_lock - operation done after an inode lock is locked by a process
484 * @gh: The glock holder
489 static int inode_go_lock(struct gfs2_holder *gh)
491 struct gfs2_glock *gl = gh->gh_gl;
492 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
493 struct gfs2_inode *ip = gl->gl_object;
496 if (!ip || (gh->gh_flags & GL_SKIP))
499 if (test_bit(GIF_INVALID, &ip->i_flags)) {
500 error = gfs2_inode_refresh(ip);
505 if (gh->gh_state != LM_ST_DEFERRED)
506 inode_dio_wait(&ip->i_inode);
508 if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
509 (gl->gl_state == LM_ST_EXCLUSIVE) &&
510 (gh->gh_state == LM_ST_EXCLUSIVE)) {
511 spin_lock(&sdp->sd_trunc_lock);
512 if (list_empty(&ip->i_trunc_list))
513 list_add(&ip->i_trunc_list, &sdp->sd_trunc_list);
514 spin_unlock(&sdp->sd_trunc_lock);
515 wake_up(&sdp->sd_quota_wait);
523 * inode_go_dump - print information about an inode
526 * @fs_id_buf: file system id (may be empty)
530 static void inode_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
531 const char *fs_id_buf)
533 struct gfs2_inode *ip = gl->gl_object;
534 struct inode *inode = &ip->i_inode;
535 unsigned long nrpages;
540 xa_lock_irq(&inode->i_data.i_pages);
541 nrpages = inode->i_data.nrpages;
542 xa_unlock_irq(&inode->i_data.i_pages);
544 gfs2_print_dbg(seq, "%s I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu "
545 "p:%lu\n", fs_id_buf,
546 (unsigned long long)ip->i_no_formal_ino,
547 (unsigned long long)ip->i_no_addr,
548 IF2DT(ip->i_inode.i_mode), ip->i_flags,
549 (unsigned int)ip->i_diskflags,
550 (unsigned long long)i_size_read(inode), nrpages);
554 * freeze_go_sync - promote/demote the freeze glock
558 static int freeze_go_sync(struct gfs2_glock *gl)
561 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
564 * We need to check gl_state == LM_ST_SHARED here and not gl_req ==
565 * LM_ST_EXCLUSIVE. That's because when any node does a freeze,
566 * all the nodes should have the freeze glock in SH mode and they all
567 * call do_xmote: One for EX and the others for UN. They ALL must
568 * freeze locally, and they ALL must queue freeze work. The freeze_work
569 * calls freeze_func, which tries to reacquire the freeze glock in SH,
570 * effectively waiting for the thaw on the node who holds it in EX.
571 * Once thawed, the work func acquires the freeze glock in
572 * SH and everybody goes back to thawed.
574 if (gl->gl_state == LM_ST_SHARED && !gfs2_withdrawn(sdp) &&
575 !test_bit(SDF_NORECOVERY, &sdp->sd_flags)) {
576 atomic_set(&sdp->sd_freeze_state, SFS_STARTING_FREEZE);
577 error = freeze_super(sdp->sd_vfs);
579 fs_info(sdp, "GFS2: couldn't freeze filesystem: %d\n",
581 if (gfs2_withdrawn(sdp)) {
582 atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
585 gfs2_assert_withdraw(sdp, 0);
587 queue_work(gfs2_freeze_wq, &sdp->sd_freeze_work);
588 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
589 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_FREEZE |
590 GFS2_LFC_FREEZE_GO_SYNC);
591 else /* read-only mounts */
592 atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
598 * freeze_go_xmote_bh - After promoting/demoting the freeze glock
601 static int freeze_go_xmote_bh(struct gfs2_glock *gl)
603 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
604 struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
605 struct gfs2_glock *j_gl = ip->i_gl;
606 struct gfs2_log_header_host head;
609 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
610 j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
612 error = gfs2_find_jhead(sdp->sd_jdesc, &head, false);
615 if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT))
618 /* Initialize some head of the log stuff */
619 if (!gfs2_withdrawn(sdp)) {
620 sdp->sd_log_sequence = head.lh_sequence + 1;
621 gfs2_log_pointers_init(sdp, head.lh_blkno);
628 * freeze_go_demote_ok
634 static int freeze_go_demote_ok(const struct gfs2_glock *gl)
640 * iopen_go_callback - schedule the dcache entry for the inode to be deleted
642 * @remote: true if this came from a different cluster node
644 * gl_lockref.lock lock is held while calling this
646 static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
648 struct gfs2_inode *ip = gl->gl_object;
649 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
651 if (!remote || sb_rdonly(sdp->sd_vfs))
654 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
655 gl->gl_state == LM_ST_SHARED && ip) {
656 gl->gl_lockref.count++;
657 if (!queue_delayed_work(gfs2_delete_workqueue,
659 gl->gl_lockref.count--;
663 static int iopen_go_demote_ok(const struct gfs2_glock *gl)
665 return !gfs2_delete_work_queued(gl);
669 * inode_go_free - wake up anyone waiting for dlm's unlock ast to free it
670 * @gl: glock being freed
672 * For now, this is only used for the journal inode glock. In withdraw
673 * situations, we need to wait for the glock to be freed so that we know
674 * other nodes may proceed with recovery / journal replay.
676 static void inode_go_free(struct gfs2_glock *gl)
678 /* Note that we cannot reference gl_object because it's already set
679 * to NULL by this point in its lifecycle. */
680 if (!test_bit(GLF_FREEING, &gl->gl_flags))
682 clear_bit_unlock(GLF_FREEING, &gl->gl_flags);
683 wake_up_bit(&gl->gl_flags, GLF_FREEING);
687 * nondisk_go_callback - used to signal when a node did a withdraw
688 * @gl: the nondisk glock
689 * @remote: true if this came from a different cluster node
692 static void nondisk_go_callback(struct gfs2_glock *gl, bool remote)
694 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
696 /* Ignore the callback unless it's from another node, and it's the
698 if (!remote || gl->gl_name.ln_number != GFS2_LIVE_LOCK)
701 /* First order of business is to cancel the demote request. We don't
702 * really want to demote a nondisk glock. At best it's just to inform
703 * us of another node's withdraw. We'll keep it in SH mode. */
704 clear_bit(GLF_DEMOTE, &gl->gl_flags);
705 clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags);
707 /* Ignore the unlock if we're withdrawn, unmounting, or in recovery. */
708 if (test_bit(SDF_NORECOVERY, &sdp->sd_flags) ||
709 test_bit(SDF_WITHDRAWN, &sdp->sd_flags) ||
710 test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags))
713 /* We only care when a node wants us to unlock, because that means
714 * they want a journal recovered. */
715 if (gl->gl_demote_state != LM_ST_UNLOCKED)
718 if (sdp->sd_args.ar_spectator) {
719 fs_warn(sdp, "Spectator node cannot recover journals.\n");
723 fs_warn(sdp, "Some node has withdrawn; checking for recovery.\n");
724 set_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags);
726 * We can't call remote_withdraw directly here or gfs2_recover_journal
727 * because this is called from the glock unlock function and the
728 * remote_withdraw needs to enqueue and dequeue the same "live" glock
729 * we were called from. So we queue it to the control work queue in
732 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, 0);
735 const struct gfs2_glock_operations gfs2_meta_glops = {
736 .go_type = LM_TYPE_META,
737 .go_flags = GLOF_NONDISK,
740 const struct gfs2_glock_operations gfs2_inode_glops = {
741 .go_sync = inode_go_sync,
742 .go_inval = inode_go_inval,
743 .go_demote_ok = inode_go_demote_ok,
744 .go_lock = inode_go_lock,
745 .go_dump = inode_go_dump,
746 .go_type = LM_TYPE_INODE,
747 .go_flags = GLOF_ASPACE | GLOF_LRU | GLOF_LVB,
748 .go_free = inode_go_free,
751 const struct gfs2_glock_operations gfs2_rgrp_glops = {
752 .go_sync = rgrp_go_sync,
753 .go_inval = rgrp_go_inval,
754 .go_lock = gfs2_rgrp_go_lock,
755 .go_dump = gfs2_rgrp_go_dump,
756 .go_type = LM_TYPE_RGRP,
757 .go_flags = GLOF_LVB,
760 const struct gfs2_glock_operations gfs2_freeze_glops = {
761 .go_sync = freeze_go_sync,
762 .go_xmote_bh = freeze_go_xmote_bh,
763 .go_demote_ok = freeze_go_demote_ok,
764 .go_type = LM_TYPE_NONDISK,
765 .go_flags = GLOF_NONDISK,
768 const struct gfs2_glock_operations gfs2_iopen_glops = {
769 .go_type = LM_TYPE_IOPEN,
770 .go_callback = iopen_go_callback,
771 .go_demote_ok = iopen_go_demote_ok,
772 .go_flags = GLOF_LRU | GLOF_NONDISK,
776 const struct gfs2_glock_operations gfs2_flock_glops = {
777 .go_type = LM_TYPE_FLOCK,
778 .go_flags = GLOF_LRU | GLOF_NONDISK,
781 const struct gfs2_glock_operations gfs2_nondisk_glops = {
782 .go_type = LM_TYPE_NONDISK,
783 .go_flags = GLOF_NONDISK,
784 .go_callback = nondisk_go_callback,
787 const struct gfs2_glock_operations gfs2_quota_glops = {
788 .go_type = LM_TYPE_QUOTA,
789 .go_flags = GLOF_LVB | GLOF_LRU | GLOF_NONDISK,
792 const struct gfs2_glock_operations gfs2_journal_glops = {
793 .go_type = LM_TYPE_JOURNAL,
794 .go_flags = GLOF_NONDISK,
797 const struct gfs2_glock_operations *gfs2_glops_list[] = {
798 [LM_TYPE_META] = &gfs2_meta_glops,
799 [LM_TYPE_INODE] = &gfs2_inode_glops,
800 [LM_TYPE_RGRP] = &gfs2_rgrp_glops,
801 [LM_TYPE_IOPEN] = &gfs2_iopen_glops,
802 [LM_TYPE_FLOCK] = &gfs2_flock_glops,
803 [LM_TYPE_NONDISK] = &gfs2_nondisk_glops,
804 [LM_TYPE_QUOTA] = &gfs2_quota_glops,
805 [LM_TYPE_JOURNAL] = &gfs2_journal_glops,