1 // SPDX-License-Identifier: GPL-2.0
5 #include "thread_with_file.h"
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_fsck_running, &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, enum bch_member_error_type type)
62 atomic64_inc(&ca->errors[type]);
63 //queue_work(system_long_wq, &ca->io_error_work);
73 static enum ask_yn parse_yn_response(char *buf)
92 static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
94 struct stdio_redirect *stdio = c->stdio;
96 if (c->stdio_filter && c->stdio_filter != current)
106 bch2_print(c, " (y,n, or Y,N for all errors of this type) ");
108 int r = bch2_stdio_redirect_readline(stdio, buf, sizeof(buf) - 1);
112 } while ((ret = parse_yn_response(buf)) < 0);
118 #include "tools-util.h"
120 static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
127 fputs(" (y,n, or Y,N for all errors of this type) ", stdout);
130 if (getline(&buf, &buflen, stdin) < 0)
131 die("error reading from standard input");
132 } while ((ret = parse_yn_response(buf)) < 0);
140 static struct fsck_err_state *fsck_err_get(struct bch_fs *c, const char *fmt)
142 struct fsck_err_state *s;
144 if (!test_bit(BCH_FS_fsck_running, &c->flags))
147 list_for_each_entry(s, &c->fsck_error_msgs, list)
150 * move it to the head of the list: repeated fsck errors
153 list_move(&s->list, &c->fsck_error_msgs);
157 s = kzalloc(sizeof(*s), GFP_NOFS);
159 if (!c->fsck_alloc_msgs_err)
160 bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
161 c->fsck_alloc_msgs_err = true;
165 INIT_LIST_HEAD(&s->list);
167 list_add(&s->list, &c->fsck_error_msgs);
171 int bch2_fsck_err(struct bch_fs *c,
172 enum bch_fsck_flags flags,
173 enum bch_sb_error_id err,
174 const char *fmt, ...)
176 struct fsck_err_state *s = NULL;
178 bool print = true, suppressing = false, inconsistent = false;
179 struct printbuf buf = PRINTBUF, *out = &buf;
180 int ret = -BCH_ERR_fsck_ignore;
182 if ((flags & FSCK_CAN_FIX) &&
183 test_bit(err, c->sb.errors_silent))
184 return -BCH_ERR_fsck_fix;
186 bch2_sb_error_count(c, err);
189 prt_vprintf(out, fmt, args);
192 mutex_lock(&c->fsck_error_msgs_lock);
193 s = fsck_err_get(c, fmt);
196 * We may be called multiple times for the same error on
197 * transaction restart - this memoizes instead of asking the user
198 * multiple times for the same error:
200 if (s->last_msg && !strcmp(buf.buf, s->last_msg)) {
202 mutex_unlock(&c->fsck_error_msgs_lock);
208 s->last_msg = kstrdup(buf.buf, GFP_KERNEL);
210 if (c->opts.ratelimit_errors &&
211 !(flags & FSCK_NO_RATELIMIT) &&
212 s->nr >= FSCK_ERR_RATELIMIT_NR) {
213 if (s->nr == FSCK_ERR_RATELIMIT_NR)
222 #ifdef BCACHEFS_LOG_PREFIX
223 if (!strncmp(fmt, "bcachefs:", 9))
224 prt_printf(out, bch2_log_msg(c, ""));
227 if (!test_bit(BCH_FS_fsck_running, &c->flags)) {
228 if (c->opts.errors != BCH_ON_ERROR_continue ||
229 !(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
230 prt_str(out, ", shutting down");
232 ret = -BCH_ERR_fsck_errors_not_fixed;
233 } else if (flags & FSCK_CAN_FIX) {
234 prt_str(out, ", fixing");
235 ret = -BCH_ERR_fsck_fix;
237 prt_str(out, ", continuing");
238 ret = -BCH_ERR_fsck_ignore;
240 } else if (c->opts.fix_errors == FSCK_FIX_exit) {
241 prt_str(out, ", exiting");
242 ret = -BCH_ERR_fsck_errors_not_fixed;
243 } else if (flags & FSCK_CAN_FIX) {
244 int fix = s && s->fix
246 : c->opts.fix_errors;
248 if (fix == FSCK_FIX_ask) {
251 prt_str(out, ": fix?");
252 if (bch2_fs_stdio_redirect(c))
253 bch2_print(c, "%s", out->buf);
255 bch2_print_string_as_lines(KERN_ERR, out->buf);
258 ask = bch2_fsck_ask_yn(c);
260 if (ask >= YN_ALLNO && s)
261 s->fix = ask == YN_ALLNO
267 : -BCH_ERR_fsck_ignore;
268 } else if (fix == FSCK_FIX_yes ||
269 (c->opts.nochanges &&
270 !(flags & FSCK_CAN_IGNORE))) {
271 prt_str(out, ", fixing");
272 ret = -BCH_ERR_fsck_fix;
274 prt_str(out, ", not fixing");
276 } else if (flags & FSCK_NEED_FSCK) {
277 prt_str(out, " (run fsck to correct)");
279 prt_str(out, " (repair unimplemented)");
282 if (ret == -BCH_ERR_fsck_ignore &&
283 (c->opts.fix_errors == FSCK_FIX_exit ||
284 !(flags & FSCK_CAN_IGNORE)))
285 ret = -BCH_ERR_fsck_errors_not_fixed;
288 if (bch2_fs_stdio_redirect(c))
289 bch2_print(c, "%s\n", out->buf);
291 bch2_print_string_as_lines(KERN_ERR, out->buf);
294 if (test_bit(BCH_FS_fsck_running, &c->flags) &&
295 (ret != -BCH_ERR_fsck_fix &&
296 ret != -BCH_ERR_fsck_ignore))
297 bch_err(c, "Unable to continue, halting");
298 else if (suppressing)
299 bch_err(c, "Ratelimiting new instances of previous error");
304 mutex_unlock(&c->fsck_error_msgs_lock);
309 bch2_inconsistent_error(c);
311 if (ret == -BCH_ERR_fsck_fix) {
312 set_bit(BCH_FS_errors_fixed, &c->flags);
314 set_bit(BCH_FS_errors_not_fixed, &c->flags);
315 set_bit(BCH_FS_error, &c->flags);
321 void bch2_flush_fsck_errs(struct bch_fs *c)
323 struct fsck_err_state *s, *n;
325 mutex_lock(&c->fsck_error_msgs_lock);
327 list_for_each_entry_safe(s, n, &c->fsck_error_msgs, list) {
328 if (s->ratelimited && s->last_msg)
329 bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->last_msg);
336 mutex_unlock(&c->fsck_error_msgs_lock);