blob: ac5fac948f87d2db353ac70713a5e719eac59f40 [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Bob Petersoncf45b752008-01-31 10:31:39 -06003 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
David Teiglandb3b94fa2006-01-16 16:50:04 +000010#include <linux/spinlock.h>
11#include <linux/completion.h>
12#include <linux/buffer_head.h>
Steven Whitehouse5c676f62006-02-27 17:23:27 -050013#include <linux/gfs2_ondisk.h>
Steven Whitehouse6802e342008-05-21 17:03:22 +010014#include <linux/bio.h>
Steven Whitehousec65f7fb2009-10-02 11:54:39 +010015#include <linux/posix_acl.h>
David Teiglandb3b94fa2006-01-16 16:50:04 +000016
17#include "gfs2.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050018#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000019#include "bmap.h"
20#include "glock.h"
21#include "glops.h"
22#include "inode.h"
23#include "log.h"
24#include "meta_io.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000025#include "recovery.h"
26#include "rgrp.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050027#include "util.h"
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040028#include "trans.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000029
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040030/**
31 * ail_empty_gl - remove all buffers for a given lock from the AIL
32 * @gl: the glock
33 *
34 * None of the buffers should be dirty, locked, or pinned.
35 */
36
37static void gfs2_ail_empty_gl(struct gfs2_glock *gl)
38{
39 struct gfs2_sbd *sdp = gl->gl_sbd;
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040040 struct list_head *head = &gl->gl_ail_list;
41 struct gfs2_bufdata *bd;
42 struct buffer_head *bh;
Steven Whitehoused8348de2009-02-05 10:12:38 +000043 struct gfs2_trans tr;
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040044
Steven Whitehoused8348de2009-02-05 10:12:38 +000045 memset(&tr, 0, sizeof(tr));
46 tr.tr_revokes = atomic_read(&gl->gl_ail_count);
47
48 if (!tr.tr_revokes)
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040049 return;
50
Steven Whitehoused8348de2009-02-05 10:12:38 +000051 /* A shortened, inline version of gfs2_trans_begin() */
52 tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes, sizeof(u64));
53 tr.tr_ip = (unsigned long)__builtin_return_address(0);
54 INIT_LIST_HEAD(&tr.tr_list_buf);
55 gfs2_log_reserve(sdp, tr.tr_reserved);
56 BUG_ON(current->journal_info);
57 current->journal_info = &tr;
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040058
59 gfs2_log_lock(sdp);
60 while (!list_empty(head)) {
61 bd = list_entry(head->next, struct gfs2_bufdata,
62 bd_ail_gl_list);
63 bh = bd->bd_bh;
Steven Whitehousef91a0d32007-10-15 16:29:05 +010064 gfs2_remove_from_ail(bd);
Steven Whitehouse1ad38c42007-09-03 11:01:33 +010065 bd->bd_bh = NULL;
66 bh->b_private = NULL;
67 bd->bd_blkno = bh->b_blocknr;
68 gfs2_assert_withdraw(sdp, !buffer_busy(bh));
69 gfs2_trans_add_revoke(sdp, bd);
Steven Whitehouseddacfaf2006-10-03 11:10:41 -040070 }
71 gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count));
72 gfs2_log_unlock(sdp);
73
74 gfs2_trans_end(sdp);
75 gfs2_log_flush(sdp, NULL);
76}
Steven Whitehouseba7f7292006-07-26 11:27:10 -040077
78/**
Steven Whitehouse6bac2432009-03-09 09:03:51 +000079 * rgrp_go_sync - sync out the metadata for this glock
David Teiglandb3b94fa2006-01-16 16:50:04 +000080 * @gl: the glock
David Teiglandb3b94fa2006-01-16 16:50:04 +000081 *
82 * Called when demoting or unlocking an EX glock. We must flush
83 * to disk all dirty buffers/pages relating to this glock, and must not
84 * not return to caller to demote/unlock the glock until I/O is complete.
85 */
86
Steven Whitehouse6bac2432009-03-09 09:03:51 +000087static void rgrp_go_sync(struct gfs2_glock *gl)
David Teiglandb3b94fa2006-01-16 16:50:04 +000088{
Steven Whitehouse009d8512009-12-08 12:12:13 +000089 struct address_space *metamapping = gfs2_glock2aspace(gl);
Steven Whitehouse6bac2432009-03-09 09:03:51 +000090 int error;
Steven Whitehouseb5d32be2007-01-22 12:15:34 -050091
Steven Whitehouse6bac2432009-03-09 09:03:51 +000092 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
93 return;
94 BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE);
95
96 gfs2_log_flush(gl->gl_sbd, gl);
97 filemap_fdatawrite(metamapping);
98 error = filemap_fdatawait(metamapping);
99 mapping_set_error(metamapping, error);
100 gfs2_ail_empty_gl(gl);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000101}
102
103/**
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000104 * rgrp_go_inval - invalidate the metadata for this glock
David Teiglandb3b94fa2006-01-16 16:50:04 +0000105 * @gl: the glock
106 * @flags:
107 *
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000108 * We never used LM_ST_DEFERRED with resource groups, so that we
109 * should always see the metadata flag set here.
110 *
David Teiglandb3b94fa2006-01-16 16:50:04 +0000111 */
112
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000113static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000114{
Steven Whitehouse009d8512009-12-08 12:12:13 +0000115 struct address_space *mapping = gfs2_glock2aspace(gl);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000116
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000117 BUG_ON(!(flags & DIO_METADATA));
118 gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count));
119 truncate_inode_pages(mapping, 0);
120
121 if (gl->gl_object) {
Bob Petersoncf45b752008-01-31 10:31:39 -0600122 struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object;
Bob Petersoncf45b752008-01-31 10:31:39 -0600123 rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
124 }
David Teiglandb3b94fa2006-01-16 16:50:04 +0000125}
126
127/**
Steven Whitehouseb5d32be2007-01-22 12:15:34 -0500128 * inode_go_sync - Sync the dirty data and/or metadata for an inode glock
129 * @gl: the glock protecting the inode
130 *
131 */
132
133static void inode_go_sync(struct gfs2_glock *gl)
134{
135 struct gfs2_inode *ip = gl->gl_object;
Steven Whitehouse009d8512009-12-08 12:12:13 +0000136 struct address_space *metamapping = gfs2_glock2aspace(gl);
Steven Whitehouse3042a2c2007-11-02 08:39:34 +0000137 int error;
138
Steven Whitehouseb5d32be2007-01-22 12:15:34 -0500139 if (ip && !S_ISREG(ip->i_inode.i_mode))
140 ip = NULL;
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000141 if (ip && test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
142 unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
143 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
144 return;
Steven Whitehouseb5d32be2007-01-22 12:15:34 -0500145
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000146 BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE);
147
148 gfs2_log_flush(gl->gl_sbd, gl);
149 filemap_fdatawrite(metamapping);
150 if (ip) {
151 struct address_space *mapping = ip->i_inode.i_mapping;
152 filemap_fdatawrite(mapping);
153 error = filemap_fdatawait(mapping);
154 mapping_set_error(mapping, error);
Steven Whitehouseb5d32be2007-01-22 12:15:34 -0500155 }
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000156 error = filemap_fdatawait(metamapping);
157 mapping_set_error(metamapping, error);
158 gfs2_ail_empty_gl(gl);
Steven Whitehouse52fcd112009-04-20 08:58:45 +0100159 /*
160 * Writeback of the data mapping may cause the dirty flag to be set
161 * so we have to clear it again here.
162 */
163 smp_mb__before_clear_bit();
164 clear_bit(GLF_DIRTY, &gl->gl_flags);
Steven Whitehouseb5d32be2007-01-22 12:15:34 -0500165}
166
167/**
David Teiglandb3b94fa2006-01-16 16:50:04 +0000168 * inode_go_inval - prepare a inode glock to be released
169 * @gl: the glock
170 * @flags:
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000171 *
172 * Normally we invlidate everything, but if we are moving into
173 * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we
174 * can keep hold of the metadata, since it won't have changed.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000175 *
176 */
177
178static void inode_go_inval(struct gfs2_glock *gl, int flags)
179{
Steven Whitehouseb0041572006-11-23 10:51:34 -0500180 struct gfs2_inode *ip = gl->gl_object;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000181
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000182 gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count));
183
184 if (flags & DIO_METADATA) {
Steven Whitehouse009d8512009-12-08 12:12:13 +0000185 struct address_space *mapping = gfs2_glock2aspace(gl);
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000186 truncate_inode_pages(mapping, 0);
Steven Whitehousec65f7fb2009-10-02 11:54:39 +0100187 if (ip) {
Steven Whitehouseb0041572006-11-23 10:51:34 -0500188 set_bit(GIF_INVALID, &ip->i_flags);
Steven Whitehousec65f7fb2009-10-02 11:54:39 +0100189 forget_all_cached_acls(&ip->i_inode);
190 }
David Teiglandb3b94fa2006-01-16 16:50:04 +0000191 }
Steven Whitehouseb0041572006-11-23 10:51:34 -0500192
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000193 if (ip == GFS2_I(gl->gl_sbd->sd_rindex))
194 gl->gl_sbd->sd_rindex_uptodate = 0;
Steven Whitehouse3cc3f712007-10-15 15:40:33 +0100195 if (ip && S_ISREG(ip->i_inode.i_mode))
Steven Whitehouseb0041572006-11-23 10:51:34 -0500196 truncate_inode_pages(ip->i_inode.i_mapping, 0);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000197}
198
199/**
200 * inode_go_demote_ok - Check to see if it's ok to unlock an inode glock
201 * @gl: the glock
202 *
203 * Returns: 1 if it's ok
204 */
205
Steven Whitehouse97cc10252008-11-20 13:39:47 +0000206static int inode_go_demote_ok(const struct gfs2_glock *gl)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000207{
208 struct gfs2_sbd *sdp = gl->gl_sbd;
Steven Whitehousebc015cb2011-01-19 09:30:01 +0000209 struct gfs2_holder *gh;
210
Steven Whitehouse97cc10252008-11-20 13:39:47 +0000211 if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
212 return 0;
Steven Whitehousebc015cb2011-01-19 09:30:01 +0000213
214 if (!list_empty(&gl->gl_holders)) {
215 gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list);
216 if (gh->gh_list.next != &gl->gl_holders)
217 return 0;
218 }
219
Steven Whitehouse97cc10252008-11-20 13:39:47 +0000220 return 1;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000221}
222
223/**
224 * inode_go_lock - operation done after an inode lock is locked by a process
225 * @gl: the glock
226 * @flags:
227 *
228 * Returns: errno
229 */
230
231static int inode_go_lock(struct gfs2_holder *gh)
232{
233 struct gfs2_glock *gl = gh->gh_gl;
Steven Whitehouse813e0c42008-11-18 13:38:48 +0000234 struct gfs2_sbd *sdp = gl->gl_sbd;
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500235 struct gfs2_inode *ip = gl->gl_object;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000236 int error = 0;
237
Bob Peterson091806ed2008-04-29 12:35:48 -0500238 if (!ip || (gh->gh_flags & GL_SKIP))
David Teiglandb3b94fa2006-01-16 16:50:04 +0000239 return 0;
240
Steven Whitehousebfded272006-11-01 16:05:38 -0500241 if (test_bit(GIF_INVALID, &ip->i_flags)) {
David Teiglandb3b94fa2006-01-16 16:50:04 +0000242 error = gfs2_inode_refresh(ip);
243 if (error)
244 return error;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000245 }
246
Steven Whitehouse383f01f2008-11-04 10:05:22 +0000247 if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
David Teiglandb3b94fa2006-01-16 16:50:04 +0000248 (gl->gl_state == LM_ST_EXCLUSIVE) &&
Steven Whitehouse813e0c42008-11-18 13:38:48 +0000249 (gh->gh_state == LM_ST_EXCLUSIVE)) {
250 spin_lock(&sdp->sd_trunc_lock);
251 if (list_empty(&ip->i_trunc_list))
252 list_add(&sdp->sd_trunc_list, &ip->i_trunc_list);
253 spin_unlock(&sdp->sd_trunc_lock);
254 wake_up(&sdp->sd_quota_wait);
255 return 1;
256 }
David Teiglandb3b94fa2006-01-16 16:50:04 +0000257
258 return error;
259}
260
261/**
Steven Whitehouse6802e342008-05-21 17:03:22 +0100262 * inode_go_dump - print information about an inode
263 * @seq: The iterator
264 * @ip: the inode
265 *
266 * Returns: 0 on success, -ENOBUFS when we run out of space
267 */
268
269static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
270{
271 const struct gfs2_inode *ip = gl->gl_object;
272 if (ip == NULL)
273 return 0;
Steven Whitehousea2e0f792010-08-11 09:53:11 +0100274 gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu\n",
Steven Whitehouse6802e342008-05-21 17:03:22 +0100275 (unsigned long long)ip->i_no_formal_ino,
276 (unsigned long long)ip->i_no_addr,
Steven Whitehousefa75ced2008-11-10 10:10:12 +0000277 IF2DT(ip->i_inode.i_mode), ip->i_flags,
278 (unsigned int)ip->i_diskflags,
Steven Whitehousea2e0f792010-08-11 09:53:11 +0100279 (unsigned long long)i_size_read(&ip->i_inode));
Steven Whitehouse6802e342008-05-21 17:03:22 +0100280 return 0;
281}
282
283/**
David Teiglandb3b94fa2006-01-16 16:50:04 +0000284 * rgrp_go_lock - operation done after an rgrp lock is locked by
285 * a first holder on this node.
286 * @gl: the glock
287 * @flags:
288 *
289 * Returns: errno
290 */
291
292static int rgrp_go_lock(struct gfs2_holder *gh)
293{
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500294 return gfs2_rgrp_bh_get(gh->gh_gl->gl_object);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000295}
296
297/**
298 * rgrp_go_unlock - operation done before an rgrp lock is unlocked by
299 * a last holder on this node.
300 * @gl: the glock
301 * @flags:
302 *
303 */
304
305static void rgrp_go_unlock(struct gfs2_holder *gh)
306{
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500307 gfs2_rgrp_bh_put(gh->gh_gl->gl_object);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000308}
309
310/**
Steven Whitehouse3042a2c2007-11-02 08:39:34 +0000311 * trans_go_sync - promote/demote the transaction glock
David Teiglandb3b94fa2006-01-16 16:50:04 +0000312 * @gl: the glock
313 * @state: the requested state
314 * @flags:
315 *
316 */
317
Steven Whitehouse3042a2c2007-11-02 08:39:34 +0000318static void trans_go_sync(struct gfs2_glock *gl)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000319{
320 struct gfs2_sbd *sdp = gl->gl_sbd;
321
322 if (gl->gl_state != LM_ST_UNLOCKED &&
323 test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
324 gfs2_meta_syncfs(sdp);
325 gfs2_log_shutdown(sdp);
326 }
David Teiglandb3b94fa2006-01-16 16:50:04 +0000327}
328
329/**
330 * trans_go_xmote_bh - After promoting/demoting the transaction glock
331 * @gl: the glock
332 *
333 */
334
Steven Whitehouse6802e342008-05-21 17:03:22 +0100335static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000336{
337 struct gfs2_sbd *sdp = gl->gl_sbd;
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400338 struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
Steven Whitehouse5c676f62006-02-27 17:23:27 -0500339 struct gfs2_glock *j_gl = ip->i_gl;
Al Viro55167622006-10-13 21:47:13 -0400340 struct gfs2_log_header_host head;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000341 int error;
342
Steven Whitehouse6802e342008-05-21 17:03:22 +0100343 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
Steven Whitehouse1a14d3a2006-11-20 10:37:45 -0500344 j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000345
346 error = gfs2_find_jhead(sdp->sd_jdesc, &head);
347 if (error)
348 gfs2_consist(sdp);
349 if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT))
350 gfs2_consist(sdp);
351
352 /* Initialize some head of the log stuff */
353 if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) {
354 sdp->sd_log_sequence = head.lh_sequence + 1;
355 gfs2_log_pointers_init(sdp, head.lh_blkno);
356 }
357 }
Steven Whitehouse6802e342008-05-21 17:03:22 +0100358 return 0;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000359}
360
361/**
Steven Whitehouse97cc10252008-11-20 13:39:47 +0000362 * trans_go_demote_ok
363 * @gl: the glock
364 *
365 * Always returns 0
366 */
367
368static int trans_go_demote_ok(const struct gfs2_glock *gl)
369{
370 return 0;
371}
372
Benjamin Marzinskib94a1702009-07-23 18:52:34 -0500373/**
374 * iopen_go_callback - schedule the dcache entry for the inode to be deleted
375 * @gl: the glock
376 *
377 * gl_spin lock is held while calling this
378 */
379static void iopen_go_callback(struct gfs2_glock *gl)
380{
381 struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object;
382
383 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
Steven Whitehouse009d8512009-12-08 12:12:13 +0000384 gl->gl_state == LM_ST_SHARED && ip) {
Benjamin Marzinskib94a1702009-07-23 18:52:34 -0500385 gfs2_glock_hold(gl);
386 if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
387 gfs2_glock_put_nolock(gl);
388 }
389}
390
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400391const struct gfs2_glock_operations gfs2_meta_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400392 .go_type = LM_TYPE_META,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000393};
394
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400395const struct gfs2_glock_operations gfs2_inode_glops = {
Steven Whitehouse3042a2c2007-11-02 08:39:34 +0000396 .go_xmote_th = inode_go_sync,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000397 .go_inval = inode_go_inval,
398 .go_demote_ok = inode_go_demote_ok,
399 .go_lock = inode_go_lock,
Steven Whitehouse6802e342008-05-21 17:03:22 +0100400 .go_dump = inode_go_dump,
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400401 .go_type = LM_TYPE_INODE,
Steven Whitehouse6802e342008-05-21 17:03:22 +0100402 .go_min_hold_time = HZ / 5,
Steven Whitehouse009d8512009-12-08 12:12:13 +0000403 .go_flags = GLOF_ASPACE,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000404};
405
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400406const struct gfs2_glock_operations gfs2_rgrp_glops = {
Steven Whitehouse6bac2432009-03-09 09:03:51 +0000407 .go_xmote_th = rgrp_go_sync,
408 .go_inval = rgrp_go_inval,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000409 .go_lock = rgrp_go_lock,
410 .go_unlock = rgrp_go_unlock,
Steven Whitehouse09010972009-05-20 10:48:47 +0100411 .go_dump = gfs2_rgrp_dump,
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400412 .go_type = LM_TYPE_RGRP,
Steven Whitehouse6802e342008-05-21 17:03:22 +0100413 .go_min_hold_time = HZ / 5,
Steven Whitehouse009d8512009-12-08 12:12:13 +0000414 .go_flags = GLOF_ASPACE,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000415};
416
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400417const struct gfs2_glock_operations gfs2_trans_glops = {
Steven Whitehouse3042a2c2007-11-02 08:39:34 +0000418 .go_xmote_th = trans_go_sync,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000419 .go_xmote_bh = trans_go_xmote_bh,
Steven Whitehouse97cc10252008-11-20 13:39:47 +0000420 .go_demote_ok = trans_go_demote_ok,
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400421 .go_type = LM_TYPE_NONDISK,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000422};
423
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400424const struct gfs2_glock_operations gfs2_iopen_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400425 .go_type = LM_TYPE_IOPEN,
Benjamin Marzinskib94a1702009-07-23 18:52:34 -0500426 .go_callback = iopen_go_callback,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000427};
428
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400429const struct gfs2_glock_operations gfs2_flock_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400430 .go_type = LM_TYPE_FLOCK,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000431};
432
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400433const struct gfs2_glock_operations gfs2_nondisk_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400434 .go_type = LM_TYPE_NONDISK,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000435};
436
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400437const struct gfs2_glock_operations gfs2_quota_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400438 .go_type = LM_TYPE_QUOTA,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000439};
440
Steven Whitehouse8fb4b532006-08-30 09:30:00 -0400441const struct gfs2_glock_operations gfs2_journal_glops = {
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400442 .go_type = LM_TYPE_JOURNAL,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000443};
444
Steven Whitehouse64d576b2009-02-12 13:31:58 +0000445const struct gfs2_glock_operations *gfs2_glops_list[] = {
446 [LM_TYPE_META] = &gfs2_meta_glops,
447 [LM_TYPE_INODE] = &gfs2_inode_glops,
448 [LM_TYPE_RGRP] = &gfs2_rgrp_glops,
Steven Whitehouse64d576b2009-02-12 13:31:58 +0000449 [LM_TYPE_IOPEN] = &gfs2_iopen_glops,
450 [LM_TYPE_FLOCK] = &gfs2_flock_glops,
451 [LM_TYPE_NONDISK] = &gfs2_nondisk_glops,
452 [LM_TYPE_QUOTA] = &gfs2_quota_glops,
453 [LM_TYPE_JOURNAL] = &gfs2_journal_glops,
454};
455