2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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.
10 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
24 struct kmem_cache *gfs2_glock_cachep __read_mostly;
25 struct kmem_cache *gfs2_glock_aspace_cachep __read_mostly;
26 struct kmem_cache *gfs2_inode_cachep __read_mostly;
27 struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
28 struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
29 struct kmem_cache *gfs2_quotad_cachep __read_mostly;
30 struct kmem_cache *gfs2_qadata_cachep __read_mostly;
31 mempool_t *gfs2_page_pool __read_mostly;
33 void gfs2_assert_i(struct gfs2_sbd *sdp)
35 fs_emerg(sdp, "fatal assertion failed\n");
38 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...)
40 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
41 const struct lm_lockops *lm = ls->ls_ops;
45 if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW &&
46 test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
54 fs_err(sdp, "%pV", &vaf);
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);
62 kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
64 if (!strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm"))
65 wait_for_completion(&sdp->sd_wdack);
68 fs_err(sdp, "telling LM to unmount\n");
71 set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
72 fs_err(sdp, "withdrawn\n");
76 if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
77 panic("GFS2: fsid=%s: panic requested\n", sdp->sd_fsname);
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85 * -2 if it was already withdrawn
88 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
89 const char *function, char *file, unsigned int line)
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);
97 return (me) ? -1 : -2;
101 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
102 * Returns: -1 if we printed something
106 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
107 const char *function, char *file, unsigned int line)
109 if (time_before(jiffies,
110 sdp->sd_last_warning +
111 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
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);
118 if (sdp->sd_args.ar_debug)
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);
129 sdp->sd_last_warning = jiffies;
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
140 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
141 char *file, unsigned int line)
144 rv = gfs2_lm_withdraw(sdp,
145 "fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
146 function, file, line);
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
156 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
157 const char *function, char *file, unsigned int line)
159 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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);
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
177 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
178 const char *function, char *file, unsigned int line)
180 struct gfs2_sbd *sdp = rgd->rd_sbd;
182 rv = gfs2_lm_withdraw(sdp,
183 "fatal: filesystem consistency error\n"
185 " function = %s, file = %s, line = %u\n",
186 (unsigned long long)rgd->rd_addr,
187 function, file, line);
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
197 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
198 const char *type, const char *function, char *file,
202 me = gfs2_lm_withdraw(sdp,
203 "fatal: invalid metadata block\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;
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
217 int 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)
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;
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
237 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
241 rv = gfs2_lm_withdraw(sdp,
243 " function = %s, file = %s, line = %u\n",
244 function, file, line);
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
254 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
255 const char *function, char *file, unsigned int line)
258 rv = gfs2_lm_withdraw(sdp,
261 " function = %s, file = %s, line = %u\n",
262 (unsigned long long)bh->b_blocknr,
263 function, file, line);