glops.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
  4 * Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
  5 */
  6
  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>
 14#include <linux/log2.h>
 15
 16#include "gfs2.h"
 17#include "incore.h"
 18#include "bmap.h"
 19#include "glock.h"
 20#include "glops.h"
 21#include "inode.h"
 22#include "log.h"
 23#include "meta_io.h"
 24#include "recovery.h"
 25#include "rgrp.h"
 26#include "util.h"
 27#include "trans.h"
 28#include "dir.h"
 29#include "lops.h"
 30
 31struct workqueue_struct *gfs2_freeze_wq;
 32
 33static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh)
 34{
 35	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 36
 37	fs_err(sdp,
 38	       "AIL buffer %p: blocknr %llu state 0x%08lx mapping %p page "
 39	       "state 0x%lx\n",
 40	       bh, (unsigned long long)bh->b_blocknr, bh->b_state,
 41	       bh->b_folio->mapping, bh->b_folio->flags.f);
 42	fs_err(sdp, "AIL glock %u:%llu mapping %p\n",
 43	       gl->gl_name.ln_type, gl->gl_name.ln_number,
 44	       gfs2_glock2aspace(gl));
 45	gfs2_lm(sdp, "AIL error\n");
 46	gfs2_withdraw(sdp);
 47}
 48
 49/**
 50 * __gfs2_ail_flush - remove all buffers for a given lock from the AIL
 51 * @gl: the glock
 52 * @fsync: set when called from fsync (not all buffers will be clean)
 53 * @nr_revokes: Number of buffers to revoke
 54 *
 55 * None of the buffers should be dirty, locked, or pinned.
 56 */
 57
 58static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
 59			     unsigned int nr_revokes)
 60{
 61	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 62	struct list_head *head = &gl->gl_ail_list;
 63	struct gfs2_bufdata *bd, *tmp;
 64	struct buffer_head *bh;
 65	const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock);
 66
 67	gfs2_log_lock(sdp);
 68	spin_lock(&sdp->sd_ail_lock);
 69	list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) {
 70		if (nr_revokes == 0)
 71			break;
 72		bh = bd->bd_bh;
 73		if (bh->b_state & b_state) {
 74			if (fsync)
 75				continue;
 76			gfs2_ail_error(gl, bh);
 77		}
 78		gfs2_trans_add_revoke(sdp, bd);
 79		nr_revokes--;
 80	}
 81	GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
 82	spin_unlock(&sdp->sd_ail_lock);
 83	gfs2_log_unlock(sdp);
 84}
 85
 86
 87static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
 88{
 89	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 90	struct gfs2_trans tr;
 91	unsigned int revokes;
 92	int ret = 0;
 93
 94	revokes = atomic_read(&gl->gl_ail_count);
 95
 96	if (!revokes) {
 97		bool have_revokes;
 98		bool log_in_flight;
 99
100		/*
101		 * We have nothing on the ail, but there could be revokes on
102		 * the sdp revoke queue, in which case, we still want to flush
103		 * the log and wait for it to finish.
104		 *
105		 * If the sdp revoke list is empty too, we might still have an
106		 * io outstanding for writing revokes, so we should wait for
107		 * it before returning.
108		 *
109		 * If none of these conditions are true, our revokes are all
110		 * flushed and we can return.
111		 */
112		gfs2_log_lock(sdp);
113		have_revokes = !list_empty(&sdp->sd_log_revokes);
114		log_in_flight = atomic_read(&sdp->sd_log_in_flight);
115		gfs2_log_unlock(sdp);
116		if (have_revokes)
117			goto flush;
118		if (log_in_flight)
119			log_flush_wait(sdp);
120		return 0;
121	}
122
123	memset(&tr, 0, sizeof(tr));
124	set_bit(TR_ONSTACK, &tr.tr_flags);
125	ret = __gfs2_trans_begin(&tr, sdp, 0, revokes, _RET_IP_);
126	if (ret) {
127		fs_err(sdp, "Transaction error %d: Unable to write revokes.", ret);
128		goto flush;
129	}
130	__gfs2_ail_flush(gl, 0, revokes);
131	gfs2_trans_end(sdp);
132
133flush:
134	if (!ret)
135		gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
136				GFS2_LFC_AIL_EMPTY_GL);
137	return ret;
138}
139
140void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
141{
142	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
143	unsigned int revokes = atomic_read(&gl->gl_ail_count);
144	int ret;
145
146	if (!revokes)
147		return;
148
149	ret = gfs2_trans_begin(sdp, 0, revokes);
150	if (ret)
151		return;
152	__gfs2_ail_flush(gl, fsync, revokes);
153	gfs2_trans_end(sdp);
154	gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
155		       GFS2_LFC_AIL_FLUSH);
156}
157
158/**
159 * gfs2_rgrp_metasync - sync out the metadata of a resource group
160 * @gl: the glock protecting the resource group
161 *
162 */
163
164static int gfs2_rgrp_metasync(struct gfs2_glock *gl)
165{
166	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
167	struct address_space *metamapping = gfs2_aspace(sdp);
168	struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
169	const unsigned bsize = sdp->sd_sb.sb_bsize;
170	loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
171	loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
172	int error;
173
174	filemap_fdatawrite_range(metamapping, start, end);
175	error = filemap_fdatawait_range(metamapping, start, end);
176	WARN_ON_ONCE(error && !gfs2_withdrawn(sdp));
177	mapping_set_error(metamapping, error);
178	if (error)
179		gfs2_io_error(sdp);
180	return error;
181}
182
183/**
184 * rgrp_go_sync - sync out the metadata for this glock
185 * @gl: the glock
186 *
187 * Called when demoting or unlocking an EX glock.  We must flush
188 * to disk all dirty buffers/pages relating to this glock, and must not
189 * return to caller to demote/unlock the glock until I/O is complete.
190 */
191
192static int rgrp_go_sync(struct gfs2_glock *gl)
193{
194	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
195	struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
196	int error;
197
198	if (!rgd || !test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
199		return 0;
200	GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
201
202	gfs2_log_flush(sdp, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
203		       GFS2_LFC_RGRP_GO_SYNC);
204	error = gfs2_rgrp_metasync(gl);
205	if (!error)
206		error = gfs2_ail_empty_gl(gl);
207	gfs2_free_clones(rgd);
208	return error;
209}
210
211/**
212 * rgrp_go_inval - invalidate the metadata for this glock
213 * @gl: the glock
214 * @flags:
215 *
216 * We never used LM_ST_DEFERRED with resource groups, so that we
217 * should always see the metadata flag set here.
218 *
219 */
220
221static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
222{
223	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
224	struct address_space *mapping = gfs2_aspace(sdp);
225	struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
226	const unsigned bsize = sdp->sd_sb.sb_bsize;
227	loff_t start, end;
228
229	if (!rgd)
230		return;
231	start = (rgd->rd_addr * bsize) & PAGE_MASK;
232	end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
233	gfs2_rgrp_brelse(rgd);
234	WARN_ON_ONCE(!(flags & DIO_METADATA));
235	gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count));
236	truncate_inode_pages_range(mapping, start, end);
237}
238
239static void gfs2_rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl,
240			      const char *fs_id_buf)
241{
242	struct gfs2_rgrpd *rgd = gl->gl_object;
243
244	if (rgd)
245		gfs2_rgrp_dump(seq, rgd, fs_id_buf);
246}
247
248static struct gfs2_inode *gfs2_glock2inode(struct gfs2_glock *gl)
249{
250	struct gfs2_inode *ip;
251
252	spin_lock(&gl->gl_lockref.lock);
253	ip = gl->gl_object;
254	if (ip)
255		set_bit(GIF_GLOP_PENDING, &ip->i_flags);
256	spin_unlock(&gl->gl_lockref.lock);
257	return ip;
258}
259
260struct gfs2_rgrpd *gfs2_glock2rgrp(struct gfs2_glock *gl)
261{
262	struct gfs2_rgrpd *rgd;
263
264	spin_lock(&gl->gl_lockref.lock);
265	rgd = gl->gl_object;
266	spin_unlock(&gl->gl_lockref.lock);
267
268	return rgd;
269}
270
271static void gfs2_clear_glop_pending(struct gfs2_inode *ip)
272{
273	if (!ip)
274		return;
275
276	clear_bit_unlock(GIF_GLOP_PENDING, &ip->i_flags);
277	wake_up_bit(&ip->i_flags, GIF_GLOP_PENDING);
278}
279
280/**
281 * gfs2_inode_metasync - sync out the metadata of an inode
282 * @gl: the glock protecting the inode
283 *
284 */
285int gfs2_inode_metasync(struct gfs2_glock *gl)
286{
287	struct address_space *metamapping = gfs2_glock2aspace(gl);
288	int error;
289
290	filemap_fdatawrite(metamapping);
291	error = filemap_fdatawait(metamapping);
292	if (error)
293		gfs2_io_error(gl->gl_name.ln_sbd);
294	return error;
295}
296
297/**
298 * inode_go_sync - Sync the dirty metadata of an inode
299 * @gl: the glock protecting the inode
300 *
301 */
302
303static int inode_go_sync(struct gfs2_glock *gl)
304{
305	struct gfs2_inode *ip = gfs2_glock2inode(gl);
306	int isreg = ip && S_ISREG(ip->i_inode.i_mode);
307	struct address_space *metamapping = gfs2_glock2aspace(gl);
308	int error = 0, ret;
309
310	if (isreg) {
311		if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
312			unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
313		inode_dio_wait(&ip->i_inode);
314	}
315	if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
316		goto out;
317
318	GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
319
320	gfs2_log_flush(gl->gl_name.ln_sbd, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
321		       GFS2_LFC_INODE_GO_SYNC);
322	filemap_fdatawrite(metamapping);
323	if (isreg) {
324		struct address_space *mapping = ip->i_inode.i_mapping;
325		filemap_fdatawrite(mapping);
326		error = filemap_fdatawait(mapping);
327		mapping_set_error(mapping, error);
328	}
329	ret = gfs2_inode_metasync(gl);
330	if (!error)
331		error = ret;
332	ret = gfs2_ail_empty_gl(gl);
333	if (!error)
334		error = ret;
335	/*
336	 * Writeback of the data mapping may cause the dirty flag to be set
337	 * so we have to clear it again here.
338	 */
339	smp_mb__before_atomic();
340	clear_bit(GLF_DIRTY, &gl->gl_flags);
341
342out:
343	gfs2_clear_glop_pending(ip);
344	return error;
345}
346
347/**
348 * inode_go_inval - prepare a inode glock to be released
349 * @gl: the glock
350 * @flags:
351 *
352 * Normally we invalidate everything, but if we are moving into
353 * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we
354 * can keep hold of the metadata, since it won't have changed.
355 *
356 */
357
358static void inode_go_inval(struct gfs2_glock *gl, int flags)
359{
360	struct gfs2_inode *ip = gfs2_glock2inode(gl);
361
362	gfs2_assert_withdraw(gl->gl_name.ln_sbd, !atomic_read(&gl->gl_ail_count));
363
364	if (flags & DIO_METADATA) {
365		struct address_space *mapping = gfs2_glock2aspace(gl);
366		truncate_inode_pages(mapping, 0);
367		if (ip) {
368			set_bit(GLF_INSTANTIATE_NEEDED, &gl->gl_flags);
369			forget_all_cached_acls(&ip->i_inode);
370			security_inode_invalidate_secctx(&ip->i_inode);
371			gfs2_dir_hash_inval(ip);
372		}
373	}
374
375	if (ip == GFS2_I(gl->gl_name.ln_sbd->sd_rindex)) {
376		gfs2_log_flush(gl->gl_name.ln_sbd, NULL,
377			       GFS2_LOG_HEAD_FLUSH_NORMAL |
378			       GFS2_LFC_INODE_GO_INVAL);
379		gl->gl_name.ln_sbd->sd_rindex_uptodate = 0;
380	}
381	if (ip && S_ISREG(ip->i_inode.i_mode))
382		truncate_inode_pages(ip->i_inode.i_mapping, 0);
383
384	gfs2_clear_glop_pending(ip);
385}
386
387static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
388{
389	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
390	const struct gfs2_dinode *str = buf;
391	struct timespec64 atime, iatime;
392	u16 height, depth;
393	umode_t mode = be32_to_cpu(str->di_mode);
394	struct inode *inode = &ip->i_inode;
395	bool is_new = inode_state_read_once(inode) & I_NEW;
396
397	if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) {
398		gfs2_consist_inode(ip);
399		return -EIO;
400	}
401	if (unlikely(!is_new && inode_wrong_type(inode, mode))) {
402		gfs2_consist_inode(ip);
403		return -EIO;
404	}
405	ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
406	inode->i_mode = mode;
407	if (is_new) {
408		inode->i_rdev = 0;
409		switch (mode & S_IFMT) {
410		case S_IFBLK:
411		case S_IFCHR:
412			inode->i_rdev = MKDEV(be32_to_cpu(str->di_major),
413					      be32_to_cpu(str->di_minor));
414			break;
415		}
416	}
417
418	i_uid_write(inode, be32_to_cpu(str->di_uid));
419	i_gid_write(inode, be32_to_cpu(str->di_gid));
420	set_nlink(inode, be32_to_cpu(str->di_nlink));
421	i_size_write(inode, be64_to_cpu(str->di_size));
422	gfs2_set_inode_blocks(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	iatime = inode_get_atime(inode);
426	if (timespec64_compare(&iatime, &atime) < 0)
427		inode_set_atime_to_ts(inode, atime);
428	inode_set_mtime(inode, be64_to_cpu(str->di_mtime),
429			be32_to_cpu(str->di_mtime_nsec));
430	inode_set_ctime(inode, be64_to_cpu(str->di_ctime),
431			be32_to_cpu(str->di_ctime_nsec));
432
433	ip->i_goal = be64_to_cpu(str->di_goal_meta);
434	ip->i_generation = be64_to_cpu(str->di_generation);
435
436	ip->i_diskflags = be32_to_cpu(str->di_flags);
437	ip->i_eattr = be64_to_cpu(str->di_eattr);
438	/* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
439	gfs2_set_inode_flags(inode);
440	height = be16_to_cpu(str->di_height);
441	if (unlikely(height > sdp->sd_max_height)) {
442		gfs2_consist_inode(ip);
443		return -EIO;
444	}
445	ip->i_height = (u8)height;
446
447	depth = be16_to_cpu(str->di_depth);
448	if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) {
449		gfs2_consist_inode(ip);
450		return -EIO;
451	}
452	if ((ip->i_diskflags & GFS2_DIF_EXHASH) &&
453	    depth < ilog2(sdp->sd_hash_ptrs)) {
454		gfs2_consist_inode(ip);
455		return -EIO;
456	}
457	ip->i_depth = (u8)depth;
458	ip->i_entries = be32_to_cpu(str->di_entries);
459
460	if (gfs2_is_stuffed(ip) && inode->i_size > gfs2_max_stuffed_size(ip)) {
461		gfs2_consist_inode(ip);
462		return -EIO;
463	}
464	if (S_ISREG(inode->i_mode))
465		gfs2_set_aops(inode);
466
467	return 0;
468}
469
470/**
471 * gfs2_inode_refresh - Refresh the incore copy of the dinode
472 * @ip: The GFS2 inode
473 *
474 * Returns: errno
475 */
476
477static int gfs2_inode_refresh(struct gfs2_inode *ip)
478{
479	struct buffer_head *dibh;
480	int error;
481
482	error = gfs2_meta_inode_buffer(ip, &dibh);
483	if (error)
484		return error;
485
486	error = gfs2_dinode_in(ip, dibh->b_data);
487	brelse(dibh);
488	return error;
489}
490
491/**
492 * inode_go_instantiate - read in an inode if necessary
493 * @gl: The glock
494 *
495 * Returns: errno
496 */
497
498static int inode_go_instantiate(struct gfs2_glock *gl)
499{
500	struct gfs2_inode *ip = gl->gl_object;
501	struct gfs2_glock *io_gl;
502	int error;
503
504	if (!ip) /* no inode to populate - read it in later */
505		return 0;
506
507	error = gfs2_inode_refresh(ip);
508	if (error)
509		return error;
510	io_gl = ip->i_iopen_gh.gh_gl;
511	io_gl->gl_no_formal_ino = ip->i_no_formal_ino;
512	return 0;
513}
514
515static int inode_go_held(struct gfs2_holder *gh)
516{
517	struct gfs2_glock *gl = gh->gh_gl;
518	struct gfs2_inode *ip = gl->gl_object;
519	int error = 0;
520
521	if (!ip) /* no inode to populate - read it in later */
522		return 0;
523
524	if (gh->gh_state != LM_ST_DEFERRED)
525		inode_dio_wait(&ip->i_inode);
526
527	if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
528	    (gl->gl_state == LM_ST_EXCLUSIVE) &&
529	    (gh->gh_state == LM_ST_EXCLUSIVE))
530		error = gfs2_truncatei_resume(ip);
531
532	return error;
533}
534
535/**
536 * inode_go_dump - print information about an inode
537 * @seq: The iterator
538 * @gl: The glock
539 * @fs_id_buf: file system id (may be empty)
540 *
541 */
542
543static void inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl,
544			  const char *fs_id_buf)
545{
546	struct gfs2_inode *ip = gl->gl_object;
547	const struct inode *inode = &ip->i_inode;
548
549	if (ip == NULL)
550		return;
551
552	gfs2_print_dbg(seq, "%s I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu "
553		       "p:%lu\n", fs_id_buf,
554		  (unsigned long long)ip->i_no_formal_ino,
555		  (unsigned long long)ip->i_no_addr,
556		  IF2DT(inode->i_mode), ip->i_flags,
557		  (unsigned int)ip->i_diskflags,
558		  (unsigned long long)i_size_read(inode),
559		  inode->i_data.nrpages);
560}
561
562/**
563 * freeze_go_callback - A cluster node is requesting a freeze
564 * @gl: the glock
565 * @remote: true if this came from a different cluster node
566 */
567
568static void freeze_go_callback(struct gfs2_glock *gl, bool remote)
569{
570	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
571	struct super_block *sb = sdp->sd_vfs;
572
573	if (!remote ||
574	    (gl->gl_state != LM_ST_SHARED &&
575	     gl->gl_state != LM_ST_UNLOCKED) ||
576	    gl->gl_demote_state != LM_ST_UNLOCKED)
577		return;
578
579	/*
580	 * Try to get an active super block reference to prevent racing with
581	 * unmount (see super_trylock_shared()).  But note that unmount isn't
582	 * the only place where a write lock on s_umount is taken, and we can
583	 * fail here because of things like remount as well.
584	 */
585	if (down_read_trylock(&sb->s_umount)) {
586		atomic_inc(&sb->s_active);
587		up_read(&sb->s_umount);
588		if (!queue_work(gfs2_freeze_wq, &sdp->sd_freeze_work))
589			deactivate_super(sb);
590	}
591}
592
593/**
594 * freeze_go_xmote_bh - After promoting/demoting the freeze glock
595 * @gl: the glock
596 */
597static int freeze_go_xmote_bh(struct gfs2_glock *gl)
598{
599	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
600	struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
601	struct gfs2_glock *j_gl = ip->i_gl;
602	struct gfs2_log_header_host head;
603	int error;
604
605	if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
606		j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
607
608		error = gfs2_find_jhead(sdp->sd_jdesc, &head);
609		if (gfs2_assert_withdraw(sdp, !error))
610			return error;
611		if (gfs2_assert_withdraw(sdp, head.lh_flags &
612					 GFS2_LOG_HEAD_UNMOUNT))
613			return -EIO;
614		gfs2_log_pointers_init(sdp, &head);
615	}
616	return 0;
617}
618
619/**
620 * iopen_go_callback - schedule the dcache entry for the inode to be deleted
621 * @gl: the glock
622 * @remote: true if this came from a different cluster node
623 *
624 * gl_lockref.lock lock is held while calling this
625 */
626static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
627{
628	struct gfs2_inode *ip = gl->gl_object;
629	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
630
631	if (!remote || test_bit(SDF_KILL, &sdp->sd_flags))
632		return;
633
634	if (gl->gl_demote_state == LM_ST_UNLOCKED &&
635	    gl->gl_state == LM_ST_SHARED && ip) {
636		gl->gl_lockref.count++;
637		if (!gfs2_queue_try_to_evict(gl))
638			gl->gl_lockref.count--;
639	}
640}
641
642const struct gfs2_glock_operations gfs2_meta_glops = {
643	.go_type = LM_TYPE_META,
644};
645
646const struct gfs2_glock_operations gfs2_inode_glops = {
647	.go_sync = inode_go_sync,
648	.go_inval = inode_go_inval,
649	.go_instantiate = inode_go_instantiate,
650	.go_held = inode_go_held,
651	.go_dump = inode_go_dump,
652	.go_type = LM_TYPE_INODE,
653	.go_flags = GLOF_ASPACE | GLOF_LVB,
654};
655
656const struct gfs2_glock_operations gfs2_rgrp_glops = {
657	.go_sync = rgrp_go_sync,
658	.go_inval = rgrp_go_inval,
659	.go_instantiate = gfs2_rgrp_go_instantiate,
660	.go_dump = gfs2_rgrp_go_dump,
661	.go_type = LM_TYPE_RGRP,
662	.go_flags = GLOF_LVB,
663};
664
665const struct gfs2_glock_operations gfs2_freeze_glops = {
666	.go_xmote_bh = freeze_go_xmote_bh,
667	.go_callback = freeze_go_callback,
668	.go_type = LM_TYPE_NONDISK,
669};
670
671const struct gfs2_glock_operations gfs2_iopen_glops = {
672	.go_type = LM_TYPE_IOPEN,
673	.go_callback = iopen_go_callback,
674	.go_dump = inode_go_dump,
675	.go_subclass = 1,
676};
677
678const struct gfs2_glock_operations gfs2_flock_glops = {
679	.go_type = LM_TYPE_FLOCK,
680};
681
682const struct gfs2_glock_operations gfs2_nondisk_glops = {
683	.go_type = LM_TYPE_NONDISK,
684};
685
686const struct gfs2_glock_operations gfs2_quota_glops = {
687	.go_type = LM_TYPE_QUOTA,
688	.go_flags = GLOF_LVB,
689};
690
691const struct gfs2_glock_operations gfs2_journal_glops = {
692	.go_type = LM_TYPE_JOURNAL,
693};
694
695const struct gfs2_glock_operations *gfs2_glops_list[] = {
696	[LM_TYPE_META] = &gfs2_meta_glops,
697	[LM_TYPE_INODE] = &gfs2_inode_glops,
698	[LM_TYPE_RGRP] = &gfs2_rgrp_glops,
699	[LM_TYPE_IOPEN] = &gfs2_iopen_glops,
700	[LM_TYPE_FLOCK] = &gfs2_flock_glops,
701	[LM_TYPE_NONDISK] = &gfs2_nondisk_glops,
702	[LM_TYPE_QUOTA] = &gfs2_quota_glops,
703	[LM_TYPE_JOURNAL] = &gfs2_journal_glops,
704};
705