blob: f7109f689e6132d08b7fcfc6a0c69db63dc0c24f [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
David Teiglandb3b94fa2006-01-16 16:50:04 +000010#include <linux/spinlock.h>
11#include <linux/completion.h>
12#include <linux/buffer_head.h>
13#include <linux/crc32.h>
Steven Whitehouse5c676f62006-02-27 17:23:27 -050014#include <linux/gfs2_ondisk.h>
David Teiglandb3b94fa2006-01-16 16:50:04 +000015#include <asm/uaccess.h>
16
17#include "gfs2.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050018#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000019#include "glock.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050020#include "util.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000021
Christoph Lametere18b8902006-12-06 20:33:20 -080022struct kmem_cache *gfs2_glock_cachep __read_mostly;
Steven Whitehouse009d8512009-12-08 12:12:13 +000023struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
Christoph Lametere18b8902006-12-06 20:33:20 -080024struct kmem_cache *gfs2_inode_cachep __read_mostly;
25struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
Bob Peterson6bdd9be2008-01-28 17:20:26 -060026struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
Steven Whitehouse37b2c832008-11-17 14:25:37 +000027struct kmem_cache *gfs2_quotad_cachep __read_mostly;
Bob Peterson36f55802012-04-11 12:59:32 -040028struct kmem_cache *gfs2_rsrv_cachep __read_mostly;
Steven Whitehousee8c92ed2012-04-16 09:28:31 +010029mempool_t *gfs2_page_pool __read_mostly;
David Teiglandb3b94fa2006-01-16 16:50:04 +000030
David Teiglandb3b94fa2006-01-16 16:50:04 +000031void gfs2_assert_i(struct gfs2_sbd *sdp)
32{
33 printk(KERN_EMERG "GFS2: fsid=%s: fatal assertion failed\n",
34 sdp->sd_fsname);
35}
36
Steven Whitehouseda755fd2008-01-30 15:34:04 +000037int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
38{
Steven Whitehousef057f6c2009-01-12 10:43:39 +000039 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
40 const struct lm_lockops *lm = ls->ls_ops;
Steven Whitehouseda755fd2008-01-30 15:34:04 +000041 va_list args;
42
Bob Petersond34843d2009-08-24 10:44:18 +010043 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
44 test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
Steven Whitehouseda755fd2008-01-30 15:34:04 +000045 return 0;
46
47 va_start(args, fmt);
48 vprintk(fmt, args);
49 va_end(args);
50
Bob Petersond34843d2009-08-24 10:44:18 +010051 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW) {
52 fs_err(sdp, "about to withdraw this file system\n");
53 BUG_ON(sdp->sd_args.ar_debug);
Steven Whitehouseda755fd2008-01-30 15:34:04 +000054
Bob Petersond34843d2009-08-24 10:44:18 +010055 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
Steven Whitehousef057f6c2009-01-12 10:43:39 +000056
Steven Whitehousefd95e812013-02-13 12:21:40 +000057 if (!strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm"))
58 wait_for_completion(&sdp->sd_wdack);
59
Bob Petersond34843d2009-08-24 10:44:18 +010060 if (lm->lm_unmount) {
61 fs_err(sdp, "telling LM to unmount\n");
62 lm->lm_unmount(sdp);
63 }
64 fs_err(sdp, "withdrawn\n");
65 dump_stack();
Steven Whitehousef057f6c2009-01-12 10:43:39 +000066 }
Bob Petersond34843d2009-08-24 10:44:18 +010067
68 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
69 panic("GFS2: fsid=%s: panic requested.\n", sdp->sd_fsname);
Steven Whitehouseda755fd2008-01-30 15:34:04 +000070
71 return -1;
72}
73
David Teiglandb3b94fa2006-01-16 16:50:04 +000074/**
75 * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
76 * Returns: -1 if this call withdrew the machine,
77 * -2 if it was already withdrawn
78 */
79
80int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
81 const char *function, char *file, unsigned int line)
82{
83 int me;
84 me = gfs2_lm_withdraw(sdp,
85 "GFS2: fsid=%s: fatal: assertion \"%s\" failed\n"
86 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
87 sdp->sd_fsname, assertion,
88 sdp->sd_fsname, function, file, line);
Steven Whitehouse18ec7d52006-02-08 11:50:51 +000089 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +000090 return (me) ? -1 : -2;
91}
92
93/**
94 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
95 * Returns: -1 if we printed something
96 * -2 if we didn't
97 */
98
99int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
100 const char *function, char *file, unsigned int line)
101{
102 if (time_before(jiffies,
103 sdp->sd_last_warning +
104 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
105 return -2;
106
Bob Petersond34843d2009-08-24 10:44:18 +0100107 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
108 printk(KERN_WARNING
109 "GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
110 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
111 sdp->sd_fsname, assertion,
112 sdp->sd_fsname, function, file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000113
114 if (sdp->sd_args.ar_debug)
115 BUG();
Steven Whitehouse18ec7d52006-02-08 11:50:51 +0000116 else
117 dump_stack();
David Teiglandb3b94fa2006-01-16 16:50:04 +0000118
Bob Petersond34843d2009-08-24 10:44:18 +0100119 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
120 panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
121 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
122 sdp->sd_fsname, assertion,
123 sdp->sd_fsname, function, file, line);
124
David Teiglandb3b94fa2006-01-16 16:50:04 +0000125 sdp->sd_last_warning = jiffies;
126
127 return -1;
128}
129
130/**
131 * gfs2_consist_i - Flag a filesystem consistency error and withdraw
132 * Returns: -1 if this call withdrew the machine,
133 * 0 if it was already withdrawn
134 */
135
136int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
137 char *file, unsigned int line)
138{
139 int rv;
140 rv = gfs2_lm_withdraw(sdp,
141 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
142 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
143 sdp->sd_fsname,
144 sdp->sd_fsname, function, file, line);
145 return rv;
146}
147
148/**
149 * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
150 * Returns: -1 if this call withdrew the machine,
151 * 0 if it was already withdrawn
152 */
153
154int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
155 const char *function, char *file, unsigned int line)
156{
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400157 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000158 int rv;
159 rv = gfs2_lm_withdraw(sdp,
160 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
161 "GFS2: fsid=%s: inode = %llu %llu\n"
162 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
163 sdp->sd_fsname,
Steven Whitehousedbb7cae2007-05-15 15:37:50 +0100164 sdp->sd_fsname, (unsigned long long)ip->i_no_formal_ino,
165 (unsigned long long)ip->i_no_addr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000166 sdp->sd_fsname, function, file, line);
167 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,
182 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
183 "GFS2: fsid=%s: RG = %llu\n"
184 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
185 sdp->sd_fsname,
Steven Whitehousebb8d8a62007-06-01 14:11:58 +0100186 sdp->sd_fsname, (unsigned long long)rgd->rd_addr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000187 sdp->sd_fsname, 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 "GFS2: fsid=%s: fatal: invalid metadata block\n"
204 "GFS2: fsid=%s: bh = %llu (%s)\n"
205 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
206 sdp->sd_fsname,
Steven Whitehouse382066d2006-05-24 10:22:09 -0400207 sdp->sd_fsname, (unsigned long long)bh->b_blocknr, type,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000208 sdp->sd_fsname, function, file, line);
209 return (me) ? -1 : -2;
210}
211
212/**
213 * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
214 * Returns: -1 if this call withdrew the machine,
215 * -2 if it was already withdrawn
216 */
217
218int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -0400219 u16 type, u16 t, const char *function,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000220 char *file, unsigned int line)
221{
222 int me;
223 me = gfs2_lm_withdraw(sdp,
224 "GFS2: fsid=%s: fatal: invalid metadata block\n"
225 "GFS2: fsid=%s: bh = %llu (type: exp=%u, found=%u)\n"
226 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
227 sdp->sd_fsname,
Steven Whitehouse382066d2006-05-24 10:22:09 -0400228 sdp->sd_fsname, (unsigned long long)bh->b_blocknr, type, t,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000229 sdp->sd_fsname, function, file, line);
230 return (me) ? -1 : -2;
231}
232
233/**
234 * gfs2_io_error_i - Flag an I/O error and withdraw
235 * Returns: -1 if this call withdrew the machine,
236 * 0 if it was already withdrawn
237 */
238
239int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
240 unsigned int line)
241{
242 int rv;
243 rv = gfs2_lm_withdraw(sdp,
244 "GFS2: fsid=%s: fatal: I/O error\n"
245 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
246 sdp->sd_fsname,
247 sdp->sd_fsname, function, file, line);
248 return rv;
249}
250
251/**
252 * gfs2_io_error_bh_i - Flag a buffer I/O error and withdraw
253 * Returns: -1 if this call withdrew the machine,
254 * 0 if it was already withdrawn
255 */
256
257int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
258 const char *function, char *file, unsigned int line)
259{
260 int rv;
261 rv = gfs2_lm_withdraw(sdp,
262 "GFS2: fsid=%s: fatal: I/O error\n"
263 "GFS2: fsid=%s: block = %llu\n"
264 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
265 sdp->sd_fsname,
Steven Whitehouse382066d2006-05-24 10:22:09 -0400266 sdp->sd_fsname, (unsigned long long)bh->b_blocknr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000267 sdp->sd_fsname, function, file, line);
268 return rv;
269}
270