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 set_bit(BCH_FS_TOPOLOGY_ERROR, &c->flags);
31 if (test_bit(BCH_FS_INITIAL_GC_DONE, &c->flags))
32 bch2_inconsistent_error(c);
35 void bch2_fatal_error(struct bch_fs *c)
37 if (bch2_fs_emergency_read_only(c))
38 bch_err(c, "fatal error - emergency read only");
41 void bch2_io_error_work(struct work_struct *work)
43 struct bch_dev *ca = container_of(work, struct bch_dev, io_error_work);
44 struct bch_fs *c = ca->fs;
47 down_write(&c->state_lock);
48 dev = bch2_dev_state_allowed(c, ca, BCH_MEMBER_STATE_ro,
49 BCH_FORCE_IF_DEGRADED);
51 ? __bch2_dev_set_state(c, ca, BCH_MEMBER_STATE_ro,
52 BCH_FORCE_IF_DEGRADED)
53 : bch2_fs_emergency_read_only(c))
55 "too many IO errors, setting %s RO",
56 dev ? "device" : "filesystem");
57 up_write(&c->state_lock);
60 void bch2_io_error(struct bch_dev *ca)
62 //queue_work(system_long_wq, &ca->io_error_work);
66 #define ask_yn() false
68 #include "tools-util.h"
71 static struct fsck_err_state *fsck_err_get(struct bch_fs *c, const char *fmt)
73 struct fsck_err_state *s;
75 if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
78 list_for_each_entry(s, &c->fsck_errors, list)
81 * move it to the head of the list: repeated fsck errors
84 list_move(&s->list, &c->fsck_errors);
88 s = kzalloc(sizeof(*s), GFP_NOFS);
90 if (!c->fsck_alloc_err)
91 bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
92 c->fsck_alloc_err = true;
96 INIT_LIST_HEAD(&s->list);
99 list_add(&s->list, &c->fsck_errors);
103 int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
105 struct fsck_err_state *s = NULL;
107 bool print = true, suppressing = false, inconsistent = false;
108 struct printbuf buf = PRINTBUF, *out = &buf;
109 int ret = -BCH_ERR_fsck_ignore;
111 mutex_lock(&c->fsck_error_lock);
112 s = fsck_err_get(c, fmt);
114 if (c->opts.ratelimit_errors &&
115 !(flags & FSCK_NO_RATELIMIT) &&
116 s->nr >= FSCK_ERR_RATELIMIT_NR) {
117 if (s->nr == FSCK_ERR_RATELIMIT_NR)
123 printbuf_reset(&s->buf);
128 #ifdef BCACHEFS_LOG_PREFIX
129 if (!strncmp(fmt, "bcachefs:", 9))
130 prt_printf(out, bch2_log_msg(c, ""));
134 prt_vprintf(out, fmt, args);
137 if (test_bit(BCH_FS_FSCK_DONE, &c->flags)) {
138 if (c->opts.errors != BCH_ON_ERROR_continue ||
139 !(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
140 prt_str(out, ", shutting down");
142 ret = -BCH_ERR_fsck_errors_not_fixed;
143 } else if (flags & FSCK_CAN_FIX) {
144 prt_str(out, ", fixing");
145 ret = -BCH_ERR_fsck_fix;
147 prt_str(out, ", continuing");
148 ret = -BCH_ERR_fsck_ignore;
150 } else if (c->opts.fix_errors == FSCK_OPT_EXIT) {
151 prt_str(out, ", exiting");
152 ret = -BCH_ERR_fsck_errors_not_fixed;
153 } else if (flags & FSCK_CAN_FIX) {
154 if (c->opts.fix_errors == FSCK_OPT_ASK) {
155 prt_str(out, ": fix?");
156 bch2_print_string_as_lines(KERN_ERR, out->buf);
160 : -BCH_ERR_fsck_ignore;
161 } else if (c->opts.fix_errors == FSCK_OPT_YES ||
162 (c->opts.nochanges &&
163 !(flags & FSCK_CAN_IGNORE))) {
164 prt_str(out, ", fixing");
165 ret = -BCH_ERR_fsck_fix;
167 prt_str(out, ", not fixing");
169 } else if (flags & FSCK_NEED_FSCK) {
170 prt_str(out, " (run fsck to correct)");
172 prt_str(out, " (repair unimplemented)");
175 if (ret == -BCH_ERR_fsck_ignore &&
176 (c->opts.fix_errors == FSCK_OPT_EXIT ||
177 !(flags & FSCK_CAN_IGNORE)))
178 ret = -BCH_ERR_fsck_errors_not_fixed;
181 bch2_print_string_as_lines(KERN_ERR, out->buf);
183 if (!test_bit(BCH_FS_FSCK_DONE, &c->flags) &&
184 (ret != -BCH_ERR_fsck_fix &&
185 ret != -BCH_ERR_fsck_ignore))
186 bch_err(c, "Unable to continue, halting");
187 else if (suppressing)
188 bch_err(c, "Ratelimiting new instances of previous error");
190 mutex_unlock(&c->fsck_error_lock);
195 bch2_inconsistent_error(c);
197 if (ret == -BCH_ERR_fsck_fix) {
198 set_bit(BCH_FS_ERRORS_FIXED, &c->flags);
200 set_bit(BCH_FS_ERRORS_NOT_FIXED, &c->flags);
201 set_bit(BCH_FS_ERROR, &c->flags);
207 void bch2_flush_fsck_errs(struct bch_fs *c)
209 struct fsck_err_state *s, *n;
211 mutex_lock(&c->fsck_error_lock);
213 list_for_each_entry_safe(s, n, &c->fsck_errors, list) {
215 bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->buf.buf);
218 printbuf_exit(&s->buf);
222 mutex_unlock(&c->fsck_error_lock);