blob: cf645835710f8e2e9ea916939418f66adc9655cc [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 }
71 fs_err(sdp, "withdrawn\n");
72 dump_stack();
Steven Whitehousef057f6c2009-01-12 10:43:39 +000073 }
Bob Petersond34843d2009-08-24 10:44:18 +010074
75 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
Joe Perchesd77d1b52014-03-06 12:10:45 -080076 panic("GFS2: fsid=%s: panic requested\n", sdp->sd_fsname);
Steven Whitehouseda755fd2008-01-30 15:34:04 +000077
78 return -1;
79}
80
David Teiglandb3b94fa2006-01-16 16:50:04 +000081/**
82 * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
83 * Returns: -1 if this call withdrew the machine,
84 * -2 if it was already withdrawn
85 */
86
87int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
88 const char *function, char *file, unsigned int line)
89{
90 int me;
91 me = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -080092 "fatal: assertion \"%s\" failed\n"
93 " function = %s, file = %s, line = %u\n",
94 assertion, function, file, line);
Steven Whitehouse18ec7d52006-02-08 11:50:51 +000095 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +000096 return (me) ? -1 : -2;
97}
98
99/**
100 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
101 * Returns: -1 if we printed something
102 * -2 if we didn't
103 */
104
105int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
106 const char *function, char *file, unsigned int line)
107{
108 if (time_before(jiffies,
109 sdp->sd_last_warning +
110 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
111 return -2;
112
Bob Petersond34843d2009-08-24 10:44:18 +0100113 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
Joe Perches8382e262014-03-06 12:10:46 -0800114 fs_warn(sdp, "warning: assertion \"%s\" failed at function = %s, file = %s, line = %u\n",
115 assertion, function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000116
117 if (sdp->sd_args.ar_debug)
118 BUG();
Steven Whitehouse18ec7d52006-02-08 11:50:51 +0000119 else
120 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +0000121
Bob Petersond34843d2009-08-24 10:44:18 +0100122 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
123 panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
124 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
125 sdp->sd_fsname, assertion,
126 sdp->sd_fsname, function, file, line);
127
David Teiglandb3b94fa2006-01-16 16:50:04 +0000128 sdp->sd_last_warning = jiffies;
129
130 return -1;
131}
132
133/**
134 * gfs2_consist_i - Flag a filesystem consistency error and withdraw
135 * Returns: -1 if this call withdrew the machine,
136 * 0 if it was already withdrawn
137 */
138
139int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
140 char *file, unsigned int line)
141{
142 int rv;
143 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800144 "fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
145 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000146 return rv;
147}
148
149/**
150 * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
151 * Returns: -1 if this call withdrew the machine,
152 * 0 if it was already withdrawn
153 */
154
155int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
156 const char *function, char *file, unsigned int line)
157{
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400158 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000159 int rv;
160 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800161 "fatal: filesystem consistency error\n"
162 " inode = %llu %llu\n"
163 " function = %s, file = %s, line = %u\n",
164 (unsigned long long)ip->i_no_formal_ino,
165 (unsigned long long)ip->i_no_addr,
166 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000167 return rv;
168}
169
170/**
171 * gfs2_consist_rgrpd_i - Flag a RG consistency error and withdraw
172 * Returns: -1 if this call withdrew the machine,
173 * 0 if it was already withdrawn
174 */
175
176int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
177 const char *function, char *file, unsigned int line)
178{
179 struct gfs2_sbd *sdp = rgd->rd_sbd;
180 int rv;
181 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800182 "fatal: filesystem consistency error\n"
183 " RG = %llu\n"
184 " function = %s, file = %s, line = %u\n",
185 (unsigned long long)rgd->rd_addr,
186 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000187 return rv;
188}
189
190/**
191 * gfs2_meta_check_ii - Flag a magic number consistency error and withdraw
192 * Returns: -1 if this call withdrew the machine,
193 * -2 if it was already withdrawn
194 */
195
196int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
197 const char *type, const char *function, char *file,
198 unsigned int line)
199{
200 int me;
201 me = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800202 "fatal: invalid metadata block\n"
203 " bh = %llu (%s)\n"
204 " function = %s, file = %s, line = %u\n",
205 (unsigned long long)bh->b_blocknr, type,
206 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000207 return (me) ? -1 : -2;
208}
209
210/**
211 * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
212 * Returns: -1 if this call withdrew the machine,
213 * -2 if it was already withdrawn
214 */
215
216int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -0400217 u16 type, u16 t, const char *function,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000218 char *file, unsigned int line)
219{
220 int me;
221 me = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800222 "fatal: invalid metadata block\n"
223 " bh = %llu (type: exp=%u, found=%u)\n"
224 " function = %s, file = %s, line = %u\n",
225 (unsigned long long)bh->b_blocknr, type, t,
226 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000227 return (me) ? -1 : -2;
228}
229
230/**
231 * gfs2_io_error_i - Flag an I/O error and withdraw
232 * Returns: -1 if this call withdrew the machine,
233 * 0 if it was already withdrawn
234 */
235
236int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
237 unsigned int line)
238{
239 int rv;
240 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800241 "fatal: I/O error\n"
242 " function = %s, file = %s, line = %u\n",
243 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000244 return rv;
245}
246
247/**
248 * gfs2_io_error_bh_i - Flag a buffer I/O error and withdraw
249 * Returns: -1 if this call withdrew the machine,
250 * 0 if it was already withdrawn
251 */
252
253int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
254 const char *function, char *file, unsigned int line)
255{
256 int rv;
257 rv = gfs2_lm_withdraw(sdp,
Joe Perchescb94eb02014-03-06 12:17:21 -0800258 "fatal: I/O error\n"
259 " block = %llu\n"
260 " function = %s, file = %s, line = %u\n",
261 (unsigned long long)bh->b_blocknr,
262 function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000263 return rv;
264}
265