1 // SPDX-License-Identifier: GPL-2.0
7 #define FSCK_ERR_RATELIMIT_NR 10
9 bool bch2_inconsistent_error(struct bch_fs *c)
11 set_bit(BCH_FS_ERROR, &c->flags);
13 switch (c->opts.errors) {
14 case BCH_ON_ERROR_continue:
17 if (bch2_fs_emergency_read_only(c))
18 bch_err(c, "inconsistency detected - emergency read only");
20 case BCH_ON_ERROR_panic:
21 panic(bch2_fmt(c, "panic after error"));
28 void bch2_topology_error(struct bch_fs *c)
30 if (!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags))
33 set_bit(BCH_FS_TOPOLOGY_ERROR, &c->flags);
34 if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
35 bch2_inconsistent_error(c);
38 void bch2_fatal_error(struct bch_fs *c)
40 if (bch2_fs_emergency_read_only(c))
41 bch_err(c, "fatal error - emergency read only");
44 void bch2_io_error_work(struct work_struct *work)
46 struct bch_dev *ca = container_of(work, struct bch_dev, io_error_work);
47 struct bch_fs *c = ca->fs;
50 down_write(&c->state_lock);
51 dev = bch2_dev_state_allowed(c, ca, BCH_MEMBER_STATE_ro,
52 BCH_FORCE_IF_DEGRADED);
54 ? __bch2_dev_set_state(c, ca, BCH_MEMBER_STATE_ro,
55 BCH_FORCE_IF_DEGRADED)
56 : bch2_fs_emergency_read_only(c))
58 "too many IO errors, setting %s RO",
59 dev ? "device" : "filesystem");
60 up_write(&c->state_lock);
63 void bch2_io_error(struct bch_dev *ca)
65 //queue_work(system_long_wq, &ca->io_error_work);
69 #define ask_yn() false
71 #include "tools-util.h"
74 static struct fsck_err_state *fsck_err_get(struct bch_fs *c, const char *fmt)
76 struct fsck_err_state *s;
78 if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
81 list_for_each_entry(s, &c->fsck_errors, list)
84 * move it to the head of the list: repeated fsck errors
87 list_move(&s->list, &c->fsck_errors);
91 s = kzalloc(sizeof(*s), GFP_NOFS);
93 if (!c->fsck_alloc_err)
94 bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
95 c->fsck_alloc_err = true;
99 INIT_LIST_HEAD(&s->list);
101 list_add(&s->list, &c->fsck_errors);
105 int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
107 struct fsck_err_state *s = NULL;
109 bool print = true, suppressing = false, inconsistent = false;
110 struct printbuf buf = PRINTBUF, *out = &buf;
111 int ret = -BCH_ERR_fsck_ignore;
114 prt_vprintf(out, fmt, args);
117 mutex_lock(&c->fsck_error_lock);
118 s = fsck_err_get(c, fmt);
120 if (s->last_msg && !strcmp(buf.buf, s->last_msg)) {
122 mutex_unlock(&c->fsck_error_lock);
128 s->last_msg = kstrdup(buf.buf, GFP_KERNEL);
130 if (c->opts.ratelimit_errors &&
131 !(flags & FSCK_NO_RATELIMIT) &&
132 s->nr >= FSCK_ERR_RATELIMIT_NR) {
133 if (s->nr == FSCK_ERR_RATELIMIT_NR)
142 #ifdef BCACHEFS_LOG_PREFIX
143 if (!strncmp(fmt, "bcachefs:", 9))
144 prt_printf(out, bch2_log_msg(c, ""));
147 if (test_bit(BCH_FS_FSCK_DONE, &c->flags)) {
148 if (c->opts.errors != BCH_ON_ERROR_continue ||
149 !(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
150 prt_str(out, ", shutting down");
152 ret = -BCH_ERR_fsck_errors_not_fixed;
153 } else if (flags & FSCK_CAN_FIX) {
154 prt_str(out, ", fixing");
155 ret = -BCH_ERR_fsck_fix;
157 prt_str(out, ", continuing");
158 ret = -BCH_ERR_fsck_ignore;
160 } else if (c->opts.fix_errors == FSCK_OPT_EXIT) {
161 prt_str(out, ", exiting");
162 ret = -BCH_ERR_fsck_errors_not_fixed;
163 } else if (flags & FSCK_CAN_FIX) {
164 if (c->opts.fix_errors == FSCK_OPT_ASK) {
165 prt_str(out, ": fix?");
166 bch2_print_string_as_lines(KERN_ERR, out->buf);
170 : -BCH_ERR_fsck_ignore;
171 } else if (c->opts.fix_errors == FSCK_OPT_YES ||
172 (c->opts.nochanges &&
173 !(flags & FSCK_CAN_IGNORE))) {
174 prt_str(out, ", fixing");
175 ret = -BCH_ERR_fsck_fix;
177 prt_str(out, ", not fixing");
179 } else if (flags & FSCK_NEED_FSCK) {
180 prt_str(out, " (run fsck to correct)");
182 prt_str(out, " (repair unimplemented)");
185 if (ret == -BCH_ERR_fsck_ignore &&
186 (c->opts.fix_errors == FSCK_OPT_EXIT ||
187 !(flags & FSCK_CAN_IGNORE)))
188 ret = -BCH_ERR_fsck_errors_not_fixed;
191 bch2_print_string_as_lines(KERN_ERR, out->buf);
193 if (!test_bit(BCH_FS_FSCK_DONE, &c->flags) &&
194 (ret != -BCH_ERR_fsck_fix &&
195 ret != -BCH_ERR_fsck_ignore))
196 bch_err(c, "Unable to continue, halting");
197 else if (suppressing)
198 bch_err(c, "Ratelimiting new instances of previous error");
203 mutex_unlock(&c->fsck_error_lock);
208 bch2_inconsistent_error(c);
210 if (ret == -BCH_ERR_fsck_fix) {
211 set_bit(BCH_FS_ERRORS_FIXED, &c->flags);
213 set_bit(BCH_FS_ERRORS_NOT_FIXED, &c->flags);
214 set_bit(BCH_FS_ERROR, &c->flags);
220 void bch2_flush_fsck_errs(struct bch_fs *c)
222 struct fsck_err_state *s, *n;
224 mutex_lock(&c->fsck_error_lock);
226 list_for_each_entry_safe(s, n, &c->fsck_errors, list) {
227 if (s->ratelimited && s->last_msg)
228 bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->last_msg);
235 mutex_unlock(&c->fsck_error_lock);