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1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11
12#include <linux/spinlock.h>
13#include <linux/completion.h>
14#include <linux/buffer_head.h>
15#include <linux/crc32.h>
16#include <linux/gfs2_ondisk.h>
17#include <linux/uaccess.h>
18
19#include "gfs2.h"
20#include "incore.h"
21#include "glock.h"
22#include "util.h"
23
24struct kmem_cache *gfs2_glock_cachep __read_mostly;
25struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
26struct kmem_cache *gfs2_inode_cachep __read_mostly;
27struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
28struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
29struct kmem_cache *gfs2_quotad_cachep __read_mostly;
30struct kmem_cache *gfs2_qadata_cachep __read_mostly;
31mempool_t *gfs2_page_pool __read_mostly;
32
33void gfs2_assert_i(struct gfs2_sbd *sdp)
34{
35 fs_emerg(sdp, "fatal assertion failed\n");
36}
37
38int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...)
39{
40 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
41 const struct lm_lockops *lm = ls->ls_ops;
42 va_list args;
43 struct va_format vaf;
44
45 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
46 test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
47 return 0;
48
49 va_start(args, fmt);
50
51 vaf.fmt = fmt;
52 vaf.va = &args;
53
54 fs_err(sdp, "%pV", &vaf);
55
56 va_end(args);
57
58 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW) {
59 fs_err(sdp, "about to withdraw this file system\n");
60 BUG_ON(sdp->sd_args.ar_debug);
61
62 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
63
64 if (!strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm"))
65 wait_for_completion(&sdp->sd_wdack);
66
67 if (lm->lm_unmount) {
68 fs_err(sdp, "telling LM to unmount\n");
69 lm->lm_unmount(sdp);
70 }
71 set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
72 fs_err(sdp, "withdrawn\n");
73 dump_stack();
74 }
75
76 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
77 panic("GFS2: fsid=%s: panic requested\n", sdp->sd_fsname);
78
79 return -1;
80}
81
82/**
83 * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
84 * Returns: -1 if this call withdrew the machine,
85 * -2 if it was already withdrawn
86 */
87
88int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
89 const char *function, char *file, unsigned int line)
90{
91 int me;
92 me = gfs2_lm_withdraw(sdp,
93 "fatal: assertion \"%s\" failed\n"
94 " function = %s, file = %s, line = %u\n",
95 assertion, function, file, line);
96 dump_stack();
97 return (me) ? -1 : -2;
98}
99
100/**
101 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
102 * Returns: -1 if we printed something
103 * -2 if we didn't
104 */
105
106int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
107 const char *function, char *file, unsigned int line)
108{
109 if (time_before(jiffies,
110 sdp->sd_last_warning +
111 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
112 return -2;
113
114 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
115 fs_warn(sdp, "warning: assertion \"%s\" failed at function = %s, file = %s, line = %u\n",
116 assertion, function, file, line);
117
118 if (sdp->sd_args.ar_debug)
119 BUG();
120 else
121 dump_stack();
122
123 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
124 panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
125 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
126 sdp->sd_fsname, assertion,
127 sdp->sd_fsname, function, file, line);
128
129 sdp->sd_last_warning = jiffies;
130
131 return -1;
132}
133
134/**
135 * gfs2_consist_i - Flag a filesystem consistency error and withdraw
136 * Returns: -1 if this call withdrew the machine,
137 * 0 if it was already withdrawn
138 */
139
140int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
141 char *file, unsigned int line)
142{
143 int rv;
144 rv = gfs2_lm_withdraw(sdp,
145 "fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
146 function, file, line);
147 return rv;
148}
149
150/**
151 * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
152 * Returns: -1 if this call withdrew the machine,
153 * 0 if it was already withdrawn
154 */
155
156int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
157 const char *function, char *file, unsigned int line)
158{
159 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
160 int rv;
161 rv = gfs2_lm_withdraw(sdp,
162 "fatal: filesystem consistency error\n"
163 " inode = %llu %llu\n"
164 " function = %s, file = %s, line = %u\n",
165 (unsigned long long)ip->i_no_formal_ino,
166 (unsigned long long)ip->i_no_addr,
167 function, file, line);
168 return rv;
169}
170
171/**
172 * gfs2_consist_rgrpd_i - Flag a RG consistency error and withdraw
173 * Returns: -1 if this call withdrew the machine,
174 * 0 if it was already withdrawn
175 */
176
177int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
178 const char *function, char *file, unsigned int line)
179{
180 struct gfs2_sbd *sdp = rgd->rd_sbd;
181 int rv;
182 rv = gfs2_lm_withdraw(sdp,
183 "fatal: filesystem consistency error\n"
184 " RG = %llu\n"
185 " function = %s, file = %s, line = %u\n",
186 (unsigned long long)rgd->rd_addr,
187 function, file, line);
188 return rv;
189}
190
191/**
192 * gfs2_meta_check_ii - Flag a magic number consistency error and withdraw
193 * Returns: -1 if this call withdrew the machine,
194 * -2 if it was already withdrawn
195 */
196
197int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
198 const char *type, const char *function, char *file,
199 unsigned int line)
200{
201 int me;
202 me = gfs2_lm_withdraw(sdp,
203 "fatal: invalid metadata block\n"
204 " bh = %llu (%s)\n"
205 " function = %s, file = %s, line = %u\n",
206 (unsigned long long)bh->b_blocknr, type,
207 function, file, line);
208 return (me) ? -1 : -2;
209}
210
211/**
212 * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
213 * Returns: -1 if this call withdrew the machine,
214 * -2 if it was already withdrawn
215 */
216
217int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
218 u16 type, u16 t, const char *function,
219 char *file, unsigned int line)
220{
221 int me;
222 me = gfs2_lm_withdraw(sdp,
223 "fatal: invalid metadata block\n"
224 " bh = %llu (type: exp=%u, found=%u)\n"
225 " function = %s, file = %s, line = %u\n",
226 (unsigned long long)bh->b_blocknr, type, t,
227 function, file, line);
228 return (me) ? -1 : -2;
229}
230
231/**
232 * gfs2_io_error_i - Flag an I/O error and withdraw
233 * Returns: -1 if this call withdrew the machine,
234 * 0 if it was already withdrawn
235 */
236
237int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
238 unsigned int line)
239{
240 int rv;
241 rv = gfs2_lm_withdraw(sdp,
242 "fatal: I/O error\n"
243 " function = %s, file = %s, line = %u\n",
244 function, file, line);
245 return rv;
246}
247
248/**
249 * gfs2_io_error_bh_i - Flag a buffer I/O error and withdraw
250 * Returns: -1 if this call withdrew the machine,
251 * 0 if it was already withdrawn
252 */
253
254int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
255 const char *function, char *file, unsigned int line)
256{
257 int rv;
258 rv = gfs2_lm_withdraw(sdp,
259 "fatal: I/O error\n"
260 " block = %llu\n"
261 " function = %s, file = %s, line = %u\n",
262 (unsigned long long)bh->b_blocknr,
263 function, file, line);
264 return rv;
265}
266
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
5 */
6
7#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8
9#include <linux/spinlock.h>
10#include <linux/completion.h>
11#include <linux/buffer_head.h>
12#include <linux/crc32.h>
13#include <linux/gfs2_ondisk.h>
14#include <linux/delay.h>
15#include <linux/uaccess.h>
16
17#include "gfs2.h"
18#include "incore.h"
19#include "glock.h"
20#include "glops.h"
21#include "log.h"
22#include "lops.h"
23#include "recovery.h"
24#include "rgrp.h"
25#include "super.h"
26#include "util.h"
27
28struct kmem_cache *gfs2_glock_cachep __read_mostly;
29struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
30struct kmem_cache *gfs2_inode_cachep __read_mostly;
31struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
32struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
33struct kmem_cache *gfs2_quotad_cachep __read_mostly;
34struct kmem_cache *gfs2_qadata_cachep __read_mostly;
35struct kmem_cache *gfs2_trans_cachep __read_mostly;
36mempool_t *gfs2_page_pool __read_mostly;
37
38void gfs2_assert_i(struct gfs2_sbd *sdp)
39{
40 fs_emerg(sdp, "fatal assertion failed\n");
41}
42
43/**
44 * check_journal_clean - Make sure a journal is clean for a spectator mount
45 * @sdp: The GFS2 superblock
46 * @jd: The journal descriptor
47 *
48 * Returns: 0 if the journal is clean or locked, else an error
49 */
50int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
51 bool verbose)
52{
53 int error;
54 struct gfs2_holder j_gh;
55 struct gfs2_log_header_host head;
56 struct gfs2_inode *ip;
57
58 ip = GFS2_I(jd->jd_inode);
59 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_NOEXP |
60 GL_EXACT | GL_NOCACHE, &j_gh);
61 if (error) {
62 if (verbose)
63 fs_err(sdp, "Error %d locking journal for spectator "
64 "mount.\n", error);
65 return -EPERM;
66 }
67 error = gfs2_jdesc_check(jd);
68 if (error) {
69 if (verbose)
70 fs_err(sdp, "Error checking journal for spectator "
71 "mount.\n");
72 goto out_unlock;
73 }
74 error = gfs2_find_jhead(jd, &head, false);
75 if (error) {
76 if (verbose)
77 fs_err(sdp, "Error parsing journal for spectator "
78 "mount.\n");
79 goto out_unlock;
80 }
81 if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) {
82 error = -EPERM;
83 if (verbose)
84 fs_err(sdp, "jid=%u: Journal is dirty, so the first "
85 "mounter must not be a spectator.\n",
86 jd->jd_jid);
87 }
88
89out_unlock:
90 gfs2_glock_dq_uninit(&j_gh);
91 return error;
92}
93
94static void signal_our_withdraw(struct gfs2_sbd *sdp)
95{
96 struct gfs2_glock *gl = sdp->sd_live_gh.gh_gl;
97 struct inode *inode = sdp->sd_jdesc->jd_inode;
98 struct gfs2_inode *ip = GFS2_I(inode);
99 u64 no_formal_ino = ip->i_no_formal_ino;
100 int ret = 0;
101 int tries;
102
103 if (test_bit(SDF_NORECOVERY, &sdp->sd_flags))
104 return;
105
106 /* Prevent any glock dq until withdraw recovery is complete */
107 set_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
108 /*
109 * Don't tell dlm we're bailing until we have no more buffers in the
110 * wind. If journal had an IO error, the log code should just purge
111 * the outstanding buffers rather than submitting new IO. Making the
112 * file system read-only will flush the journal, etc.
113 *
114 * During a normal unmount, gfs2_make_fs_ro calls gfs2_log_shutdown
115 * which clears SDF_JOURNAL_LIVE. In a withdraw, we must not write
116 * any UNMOUNT log header, so we can't call gfs2_log_shutdown, and
117 * therefore we need to clear SDF_JOURNAL_LIVE manually.
118 */
119 clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
120 if (!sb_rdonly(sdp->sd_vfs))
121 ret = gfs2_make_fs_ro(sdp);
122
123 if (sdp->sd_lockstruct.ls_ops->lm_lock == NULL) { /* lock_nolock */
124 if (!ret)
125 ret = -EIO;
126 clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
127 goto skip_recovery;
128 }
129 /*
130 * Drop the glock for our journal so another node can recover it.
131 */
132 if (gfs2_holder_initialized(&sdp->sd_journal_gh)) {
133 gfs2_glock_dq_wait(&sdp->sd_journal_gh);
134 gfs2_holder_uninit(&sdp->sd_journal_gh);
135 }
136 sdp->sd_jinode_gh.gh_flags |= GL_NOCACHE;
137 gfs2_glock_dq(&sdp->sd_jinode_gh);
138 if (test_bit(SDF_FS_FROZEN, &sdp->sd_flags)) {
139 /* Make sure gfs2_unfreeze works if partially-frozen */
140 flush_workqueue(gfs2_freeze_wq);
141 atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
142 thaw_super(sdp->sd_vfs);
143 } else {
144 wait_on_bit(&gl->gl_flags, GLF_DEMOTE, TASK_UNINTERRUPTIBLE);
145 }
146
147 /*
148 * holder_uninit to force glock_put, to force dlm to let go
149 */
150 gfs2_holder_uninit(&sdp->sd_jinode_gh);
151
152 /*
153 * Note: We need to be careful here:
154 * Our iput of jd_inode will evict it. The evict will dequeue its
155 * glock, but the glock dq will wait for the withdraw unless we have
156 * exception code in glock_dq.
157 */
158 iput(inode);
159 /*
160 * Wait until the journal inode's glock is freed. This allows try locks
161 * on other nodes to be successful, otherwise we remain the owner of
162 * the glock as far as dlm is concerned.
163 */
164 if (gl->gl_ops->go_free) {
165 set_bit(GLF_FREEING, &gl->gl_flags);
166 wait_on_bit(&gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE);
167 }
168
169 /*
170 * Dequeue the "live" glock, but keep a reference so it's never freed.
171 */
172 gfs2_glock_hold(gl);
173 gfs2_glock_dq_wait(&sdp->sd_live_gh);
174 /*
175 * We enqueue the "live" glock in EX so that all other nodes
176 * get a demote request and act on it. We don't really want the
177 * lock in EX, so we send a "try" lock with 1CB to produce a callback.
178 */
179 fs_warn(sdp, "Requesting recovery of jid %d.\n",
180 sdp->sd_lockstruct.ls_jid);
181 gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | LM_FLAG_NOEXP,
182 &sdp->sd_live_gh);
183 msleep(GL_GLOCK_MAX_HOLD);
184 /*
185 * This will likely fail in a cluster, but succeed standalone:
186 */
187 ret = gfs2_glock_nq(&sdp->sd_live_gh);
188
189 /*
190 * If we actually got the "live" lock in EX mode, there are no other
191 * nodes available to replay our journal. So we try to replay it
192 * ourselves. We hold the "live" glock to prevent other mounters
193 * during recovery, then just dequeue it and reacquire it in our
194 * normal SH mode. Just in case the problem that caused us to
195 * withdraw prevents us from recovering our journal (e.g. io errors
196 * and such) we still check if the journal is clean before proceeding
197 * but we may wait forever until another mounter does the recovery.
198 */
199 if (ret == 0) {
200 fs_warn(sdp, "No other mounters found. Trying to recover our "
201 "own journal jid %d.\n", sdp->sd_lockstruct.ls_jid);
202 if (gfs2_recover_journal(sdp->sd_jdesc, 1))
203 fs_warn(sdp, "Unable to recover our journal jid %d.\n",
204 sdp->sd_lockstruct.ls_jid);
205 gfs2_glock_dq_wait(&sdp->sd_live_gh);
206 gfs2_holder_reinit(LM_ST_SHARED, LM_FLAG_NOEXP | GL_EXACT,
207 &sdp->sd_live_gh);
208 gfs2_glock_nq(&sdp->sd_live_gh);
209 }
210
211 gfs2_glock_queue_put(gl); /* drop the extra reference we acquired */
212 clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
213
214 /*
215 * At this point our journal is evicted, so we need to get a new inode
216 * for it. Once done, we need to call gfs2_find_jhead which
217 * calls gfs2_map_journal_extents to map it for us again.
218 *
219 * Note that we don't really want it to look up a FREE block. The
220 * GFS2_BLKST_FREE simply overrides a block check in gfs2_inode_lookup
221 * which would otherwise fail because it requires grabbing an rgrp
222 * glock, which would fail with -EIO because we're withdrawing.
223 */
224 inode = gfs2_inode_lookup(sdp->sd_vfs, DT_UNKNOWN,
225 sdp->sd_jdesc->jd_no_addr, no_formal_ino,
226 GFS2_BLKST_FREE);
227 if (IS_ERR(inode)) {
228 fs_warn(sdp, "Reprocessing of jid %d failed with %ld.\n",
229 sdp->sd_lockstruct.ls_jid, PTR_ERR(inode));
230 goto skip_recovery;
231 }
232 sdp->sd_jdesc->jd_inode = inode;
233
234 /*
235 * Now wait until recovery is complete.
236 */
237 for (tries = 0; tries < 10; tries++) {
238 ret = check_journal_clean(sdp, sdp->sd_jdesc, false);
239 if (!ret)
240 break;
241 msleep(HZ);
242 fs_warn(sdp, "Waiting for journal recovery jid %d.\n",
243 sdp->sd_lockstruct.ls_jid);
244 }
245skip_recovery:
246 if (!ret)
247 fs_warn(sdp, "Journal recovery complete for jid %d.\n",
248 sdp->sd_lockstruct.ls_jid);
249 else
250 fs_warn(sdp, "Journal recovery skipped for %d until next "
251 "mount.\n", sdp->sd_lockstruct.ls_jid);
252 fs_warn(sdp, "Glock dequeues delayed: %lu\n", sdp->sd_glock_dqs_held);
253 sdp->sd_glock_dqs_held = 0;
254 wake_up_bit(&sdp->sd_flags, SDF_WITHDRAW_RECOVERY);
255}
256
257void gfs2_lm(struct gfs2_sbd *sdp, const char *fmt, ...)
258{
259 struct va_format vaf;
260 va_list args;
261
262 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
263 test_bit(SDF_WITHDRAWN, &sdp->sd_flags))
264 return;
265
266 va_start(args, fmt);
267 vaf.fmt = fmt;
268 vaf.va = &args;
269 fs_err(sdp, "%pV", &vaf);
270 va_end(args);
271}
272
273int gfs2_withdraw(struct gfs2_sbd *sdp)
274{
275 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
276 const struct lm_lockops *lm = ls->ls_ops;
277
278 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
279 test_and_set_bit(SDF_WITHDRAWN, &sdp->sd_flags)) {
280 if (!test_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags))
281 return -1;
282
283 wait_on_bit(&sdp->sd_flags, SDF_WITHDRAW_IN_PROG,
284 TASK_UNINTERRUPTIBLE);
285 return -1;
286 }
287
288 set_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags);
289
290 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW) {
291 fs_err(sdp, "about to withdraw this file system\n");
292 BUG_ON(sdp->sd_args.ar_debug);
293
294 signal_our_withdraw(sdp);
295
296 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
297
298 if (!strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm"))
299 wait_for_completion(&sdp->sd_wdack);
300
301 if (lm->lm_unmount) {
302 fs_err(sdp, "telling LM to unmount\n");
303 lm->lm_unmount(sdp);
304 }
305 set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
306 fs_err(sdp, "File system withdrawn\n");
307 dump_stack();
308 clear_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags);
309 smp_mb__after_atomic();
310 wake_up_bit(&sdp->sd_flags, SDF_WITHDRAW_IN_PROG);
311 }
312
313 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
314 panic("GFS2: fsid=%s: panic requested\n", sdp->sd_fsname);
315
316 return -1;
317}
318
319/**
320 * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
321 */
322
323void gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
324 const char *function, char *file, unsigned int line,
325 bool delayed)
326{
327 if (gfs2_withdrawn(sdp))
328 return;
329
330 fs_err(sdp,
331 "fatal: assertion \"%s\" failed\n"
332 " function = %s, file = %s, line = %u\n",
333 assertion, function, file, line);
334
335 /*
336 * If errors=panic was specified on mount, it won't help to delay the
337 * withdraw.
338 */
339 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
340 delayed = false;
341
342 if (delayed)
343 gfs2_withdraw_delayed(sdp);
344 else
345 gfs2_withdraw(sdp);
346 dump_stack();
347}
348
349/**
350 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
351 */
352
353void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
354 const char *function, char *file, unsigned int line)
355{
356 if (time_before(jiffies,
357 sdp->sd_last_warning +
358 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
359 return;
360
361 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
362 fs_warn(sdp, "warning: assertion \"%s\" failed at function = %s, file = %s, line = %u\n",
363 assertion, function, file, line);
364
365 if (sdp->sd_args.ar_debug)
366 BUG();
367 else
368 dump_stack();
369
370 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
371 panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
372 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
373 sdp->sd_fsname, assertion,
374 sdp->sd_fsname, function, file, line);
375
376 sdp->sd_last_warning = jiffies;
377}
378
379/**
380 * gfs2_consist_i - Flag a filesystem consistency error and withdraw
381 */
382
383void gfs2_consist_i(struct gfs2_sbd *sdp, const char *function,
384 char *file, unsigned int line)
385{
386 gfs2_lm(sdp,
387 "fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
388 function, file, line);
389 gfs2_withdraw(sdp);
390}
391
392/**
393 * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
394 */
395
396void gfs2_consist_inode_i(struct gfs2_inode *ip,
397 const char *function, char *file, unsigned int line)
398{
399 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
400
401 gfs2_lm(sdp,
402 "fatal: filesystem consistency error\n"
403 " inode = %llu %llu\n"
404 " function = %s, file = %s, line = %u\n",
405 (unsigned long long)ip->i_no_formal_ino,
406 (unsigned long long)ip->i_no_addr,
407 function, file, line);
408 gfs2_withdraw(sdp);
409}
410
411/**
412 * gfs2_consist_rgrpd_i - Flag a RG consistency error and withdraw
413 */
414
415void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
416 const char *function, char *file, unsigned int line)
417{
418 struct gfs2_sbd *sdp = rgd->rd_sbd;
419 char fs_id_buf[sizeof(sdp->sd_fsname) + 7];
420
421 sprintf(fs_id_buf, "fsid=%s: ", sdp->sd_fsname);
422 gfs2_rgrp_dump(NULL, rgd->rd_gl, fs_id_buf);
423 gfs2_lm(sdp,
424 "fatal: filesystem consistency error\n"
425 " RG = %llu\n"
426 " function = %s, file = %s, line = %u\n",
427 (unsigned long long)rgd->rd_addr,
428 function, file, line);
429 gfs2_withdraw(sdp);
430}
431
432/**
433 * gfs2_meta_check_ii - Flag a magic number consistency error and withdraw
434 * Returns: -1 if this call withdrew the machine,
435 * -2 if it was already withdrawn
436 */
437
438int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
439 const char *type, const char *function, char *file,
440 unsigned int line)
441{
442 int me;
443
444 gfs2_lm(sdp,
445 "fatal: invalid metadata block\n"
446 " bh = %llu (%s)\n"
447 " function = %s, file = %s, line = %u\n",
448 (unsigned long long)bh->b_blocknr, type,
449 function, file, line);
450 me = gfs2_withdraw(sdp);
451 return (me) ? -1 : -2;
452}
453
454/**
455 * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
456 * Returns: -1 if this call withdrew the machine,
457 * -2 if it was already withdrawn
458 */
459
460int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
461 u16 type, u16 t, const char *function,
462 char *file, unsigned int line)
463{
464 int me;
465
466 gfs2_lm(sdp,
467 "fatal: invalid metadata block\n"
468 " bh = %llu (type: exp=%u, found=%u)\n"
469 " function = %s, file = %s, line = %u\n",
470 (unsigned long long)bh->b_blocknr, type, t,
471 function, file, line);
472 me = gfs2_withdraw(sdp);
473 return (me) ? -1 : -2;
474}
475
476/**
477 * gfs2_io_error_i - Flag an I/O error and withdraw
478 * Returns: -1 if this call withdrew the machine,
479 * 0 if it was already withdrawn
480 */
481
482int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
483 unsigned int line)
484{
485 gfs2_lm(sdp,
486 "fatal: I/O error\n"
487 " function = %s, file = %s, line = %u\n",
488 function, file, line);
489 return gfs2_withdraw(sdp);
490}
491
492/**
493 * gfs2_io_error_bh_i - Flag a buffer I/O error
494 * @withdraw: withdraw the filesystem
495 */
496
497void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
498 const char *function, char *file, unsigned int line,
499 bool withdraw)
500{
501 if (gfs2_withdrawn(sdp))
502 return;
503
504 fs_err(sdp, "fatal: I/O error\n"
505 " block = %llu\n"
506 " function = %s, file = %s, line = %u\n",
507 (unsigned long long)bh->b_blocknr, function, file, line);
508 if (withdraw)
509 gfs2_withdraw(sdp);
510}
511