2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2005 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 v.2.
10 #include <linux/sched.h>
11 #include <linux/slab.h>
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 <asm/semaphore.h>
18 #include <asm/uaccess.h>
21 #include "lm_interface.h"
27 kmem_cache_t *gfs2_glock_cachep __read_mostly;
28 kmem_cache_t *gfs2_inode_cachep __read_mostly;
29 kmem_cache_t *gfs2_bufdata_cachep __read_mostly;
31 void gfs2_assert_i(struct gfs2_sbd *sdp)
33 printk(KERN_EMERG "GFS2: fsid=%s: fatal assertion failed\n",
39 * gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
40 * Returns: -1 if this call withdrew the machine,
41 * -2 if it was already withdrawn
44 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
45 const char *function, char *file, unsigned int line)
48 me = gfs2_lm_withdraw(sdp,
49 "GFS2: fsid=%s: fatal: assertion \"%s\" failed\n"
50 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
51 sdp->sd_fsname, assertion,
52 sdp->sd_fsname, function, file, line);
54 return (me) ? -1 : -2;
58 * gfs2_assert_warn_i - Print a message to the console if @assertion is false
59 * Returns: -1 if we printed something
63 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
64 const char *function, char *file, unsigned int line)
66 if (time_before(jiffies,
67 sdp->sd_last_warning +
68 gfs2_tune_get(sdp, gt_complain_secs) * HZ))
72 "GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
73 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
74 sdp->sd_fsname, assertion,
75 sdp->sd_fsname, function, file, line);
77 if (sdp->sd_args.ar_debug)
82 sdp->sd_last_warning = jiffies;
88 * gfs2_consist_i - Flag a filesystem consistency error and withdraw
89 * Returns: -1 if this call withdrew the machine,
90 * 0 if it was already withdrawn
93 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, const char *function,
94 char *file, unsigned int line)
97 rv = gfs2_lm_withdraw(sdp,
98 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
99 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
101 sdp->sd_fsname, function, file, line);
106 * gfs2_consist_inode_i - Flag an inode consistency error and withdraw
107 * Returns: -1 if this call withdrew the machine,
108 * 0 if it was already withdrawn
111 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
112 const char *function, char *file, unsigned int line)
114 struct gfs2_sbd *sdp = ip->i_sbd;
116 rv = gfs2_lm_withdraw(sdp,
117 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
118 "GFS2: fsid=%s: inode = %llu %llu\n"
119 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
121 sdp->sd_fsname, ip->i_num.no_formal_ino, ip->i_num.no_addr,
122 sdp->sd_fsname, function, file, line);
127 * gfs2_consist_rgrpd_i - Flag a RG consistency error and withdraw
128 * Returns: -1 if this call withdrew the machine,
129 * 0 if it was already withdrawn
132 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
133 const char *function, char *file, unsigned int line)
135 struct gfs2_sbd *sdp = rgd->rd_sbd;
137 rv = gfs2_lm_withdraw(sdp,
138 "GFS2: fsid=%s: fatal: filesystem consistency error\n"
139 "GFS2: fsid=%s: RG = %llu\n"
140 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
142 sdp->sd_fsname, rgd->rd_ri.ri_addr,
143 sdp->sd_fsname, function, file, line);
148 * gfs2_meta_check_ii - Flag a magic number consistency error and withdraw
149 * Returns: -1 if this call withdrew the machine,
150 * -2 if it was already withdrawn
153 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
154 const char *type, const char *function, char *file,
158 me = gfs2_lm_withdraw(sdp,
159 "GFS2: fsid=%s: fatal: invalid metadata block\n"
160 "GFS2: fsid=%s: bh = %llu (%s)\n"
161 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
163 sdp->sd_fsname, (uint64_t)bh->b_blocknr, type,
164 sdp->sd_fsname, function, file, line);
165 return (me) ? -1 : -2;
169 * gfs2_metatype_check_ii - Flag a metadata type consistency error and withdraw
170 * Returns: -1 if this call withdrew the machine,
171 * -2 if it was already withdrawn
174 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
175 uint16_t type, uint16_t t, const char *function,
176 char *file, unsigned int line)
179 me = gfs2_lm_withdraw(sdp,
180 "GFS2: fsid=%s: fatal: invalid metadata block\n"
181 "GFS2: fsid=%s: bh = %llu (type: exp=%u, found=%u)\n"
182 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
184 sdp->sd_fsname, (uint64_t)bh->b_blocknr, type, t,
185 sdp->sd_fsname, function, file, line);
186 return (me) ? -1 : -2;
190 * gfs2_io_error_i - Flag an I/O error and withdraw
191 * Returns: -1 if this call withdrew the machine,
192 * 0 if it was already withdrawn
195 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
199 rv = gfs2_lm_withdraw(sdp,
200 "GFS2: fsid=%s: fatal: I/O error\n"
201 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
203 sdp->sd_fsname, function, file, line);
208 * gfs2_io_error_bh_i - Flag a buffer I/O error and withdraw
209 * Returns: -1 if this call withdrew the machine,
210 * 0 if it was already withdrawn
213 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
214 const char *function, char *file, unsigned int line)
217 rv = gfs2_lm_withdraw(sdp,
218 "GFS2: fsid=%s: fatal: I/O error\n"
219 "GFS2: fsid=%s: block = %llu\n"
220 "GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
222 sdp->sd_fsname, (uint64_t)bh->b_blocknr,
223 sdp->sd_fsname, function, file, line);
227 void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
228 unsigned int bit, int new_value)
230 unsigned int c, o, b = bit;
233 c = b / (8 * PAGE_SIZE);
238 old_value = (bitmap[c][o] & (1 << b));
239 gfs2_assert_withdraw(sdp, !old_value != !new_value);
242 bitmap[c][o] |= 1 << b;
244 bitmap[c][o] &= ~(1 << b);