blob: aee4485ad8a9b4f75de1bb9fa356f582ff4a5e4c [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 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
Joe Perchesd77d1b52014-03-06 12:10:45 -080010#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11
David Teiglandb3b94fa2006-01-16 16:50:04 +000012#include <linux/spinlock.h>
13#include <linux/completion.h>
14#include <linux/buffer_head.h>
15#include <linux/crc32.h>
Steven Whitehouse5c676f62006-02-27 17:23:27 -050016#include <linux/gfs2_ondisk.h>
David Teiglandb3b94fa2006-01-16 16:50:04 +000017#include <asm/uaccess.h>
18
19#include "gfs2.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050020#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000021#include "glock.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050022#include "util.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000023
Christoph Lametere18b8902006-12-06 20:33:20 -080024struct kmem_cache *gfs2_glock_cachep __read_mostly;
Steven Whitehouse009d8512009-12-08 12:12:13 +000025struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
Christoph Lametere18b8902006-12-06 20:33:20 -080026struct kmem_cache *gfs2_inode_cachep __read_mostly;
27struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
Bob Peterson6bdd9be2008-01-28 17:20:26 -060028struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
Steven Whitehouse37b2c832008-11-17 14:25:37 +000029struct kmem_cache *gfs2_quotad_cachep __read_mostly;
Bob Petersonb54e9a02015-10-26 10:40:28 -050030struct kmem_cache *gfs2_qadata_cachep __read_mostly;
Steven Whitehousee8c92ed2012-04-16 09:28:31 +010031mempool_t *gfs2_page_pool __read_mostly;
David Teiglandb3b94fa2006-01-16 16:50:04 +000032
David Teiglandb3b94fa2006-01-16 16:50:04 +000033void gfs2_assert_i(struct gfs2_sbd *sdp)
34{
Joe Perches8382e262014-03-06 12:10:46 -080035 fs_emerg(sdp, "fatal assertion failed\n");
David Teiglandb3b94fa2006-01-16 16:50:04 +000036}
37
Joe Perchescb94eb02014-03-06 12:17:21 -080038int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...)
Steven Whitehouseda755fd2008-01-30 15:34:04 +000039{
Steven Whitehousef057f6c2009-01-12 10:43:39 +000040 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
41 const struct lm_lockops *lm = ls->ls_ops;
Steven Whitehouseda755fd2008-01-30 15:34:04 +000042 va_list args;
Joe Perchescb94eb02014-03-06 12:17:21 -080043 struct va_format vaf;
Steven Whitehouseda755fd2008-01-30 15:34:04 +000044
Bob Petersond34843d2009-08-24 10:44:18 +010045 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
46 test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
Steven Whitehouseda755fd2008-01-30 15:34:04 +000047 return 0;
48
49 va_start(args, fmt);
Joe Perchescb94eb02014-03-06 12:17:21 -080050
51 vaf.fmt = fmt;
52 vaf.va = &args;
53
54 fs_err(sdp, "%pV", &vaf);
55
Steven Whitehouseda755fd2008-01-30 15:34:04 +000056 va_end(args);
57
Bob Petersond34843d2009-08-24 10:44:18 +010058 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);
Steven Whitehouseda755fd2008-01-30 15:34:04 +000061
Bob Petersond34843d2009-08-24 10:44:18 +010062 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
Steven Whitehousef057f6c2009-01-12 10:43:39 +000063
Steven Whitehousefd95e812013-02-13 12:21:40 +000064 if (!strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm"))
65 wait_for_completion(&sdp->sd_wdack);
66
Bob Petersond34843d2009-08-24 10:44:18 +010067 if (lm->lm_unmount) {
68 fs_err(sdp, "telling LM to unmount\n");
69 lm->lm_unmount(sdp);
70 }
Benjamin Marzinski3e11e532016-03-23 14:29:59 -040071 set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
Bob Petersond34843d2009-08-24 10:44:18 +010072 fs_err(sdp, "withdrawn\n");
73 dump_stack();
Steven Whitehousef057f6c2009-01-12 10:43:39 +000074 }
Bob Petersond34843d2009-08-24 10:44:18 +010075
76 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
Joe Perchesd77d1b52014-03-06 12:10:45 -080077 panic("GFS2: fsid=%s: panic requested\n", sdp->sd_fsname);
Steven Whitehouseda755fd2008-01-30 15:34:04 +000078
79 return -1;
80}
81
David Teiglandb3b94fa2006-01-16 16:50:04 +000082/**
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,
Joe Perchescb94eb02014-03-06 12:17:21 -080093 "fatal: assertion \"%s\" failed\n"
94 " function = %s, file = %s, line = %u\n",
95 assertion, function, file, line);
Steven Whitehouse18ec7d52006-02-08 11:50:51 +000096 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +000097 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
Bob Petersond34843d2009-08-24 10:44:18 +0100114 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
Joe Perches8382e262014-03-06 12:10:46 -0800115 fs_warn(sdp, "warning: assertion \"%s\" failed at function = %s, file = %s, line = %u\n",
116 assertion, function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000117
118 if (sdp->sd_args.ar_debug)
119 BUG();
Steven Whitehouse18ec7d52006-02-08 11:50:51 +0000120 else
121 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +0000122
Bob Petersond34843d2009-08-24 10:44:18 +0100123 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
David Teiglandb3b94fa2006-01-16 16:50:04 +0000129 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,
Joe Perchescb94eb02014-03-06 12:17:21 -0800145 "fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
146 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000147 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{
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400159 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000160 int rv;
161 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800162 "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);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000168 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,
Joe Perchescb94eb02014-03-06 12:17:21 -0800183 "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);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000188 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,
Joe Perchescb94eb02014-03-06 12:17:21 -0800203 "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);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000208 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,
Steven Whitehousecd915492006-09-04 12:49:07 -0400218 u16 type, u16 t, const char *function,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000219 char *file, unsigned int line)
220{
221 int me;
222 me = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800223 "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);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000228 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,
Joe Perchescb94eb02014-03-06 12:17:21 -0800242 "fatal: I/O error\n"
243 " function = %s, file = %s, line = %u\n",
244 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000245 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,
Joe Perchescb94eb02014-03-06 12:17:21 -0800259 "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);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000264 return rv;
265}
266