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-rw-r--r--fs/bcachefs/error.c148
1 files changed, 100 insertions, 48 deletions
diff --git a/fs/bcachefs/error.c b/fs/bcachefs/error.c
index 2a5af8872613..82a6656c941c 100644
--- a/fs/bcachefs/error.c
+++ b/fs/bcachefs/error.c
@@ -1,20 +1,24 @@
// SPDX-License-Identifier: GPL-2.0
#include "bcachefs.h"
#include "error.h"
+#include "journal.h"
+#include "recovery_passes.h"
#include "super.h"
+#include "thread_with_file.h"
#define FSCK_ERR_RATELIMIT_NR 10
bool bch2_inconsistent_error(struct bch_fs *c)
{
- set_bit(BCH_FS_ERROR, &c->flags);
+ set_bit(BCH_FS_error, &c->flags);
switch (c->opts.errors) {
case BCH_ON_ERROR_continue:
return false;
case BCH_ON_ERROR_ro:
if (bch2_fs_emergency_read_only(c))
- bch_err(c, "inconsistency detected - emergency read only");
+ bch_err(c, "inconsistency detected - emergency read only at journal seq %llu",
+ journal_cur_seq(&c->journal));
return true;
case BCH_ON_ERROR_panic:
panic(bch2_fmt(c, "panic after error"));
@@ -24,11 +28,16 @@ bool bch2_inconsistent_error(struct bch_fs *c)
}
}
-void bch2_topology_error(struct bch_fs *c)
+int bch2_topology_error(struct bch_fs *c)
{
- set_bit(BCH_FS_TOPOLOGY_ERROR, &c->flags);
- if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
+ set_bit(BCH_FS_topology_error, &c->flags);
+ if (!test_bit(BCH_FS_fsck_running, &c->flags)) {
bch2_inconsistent_error(c);
+ return -BCH_ERR_btree_need_topology_repair;
+ } else {
+ return bch2_run_explicit_recovery_pass(c, BCH_RECOVERY_PASS_check_topology) ?:
+ -BCH_ERR_btree_node_read_validate_error;
+ }
}
void bch2_fatal_error(struct bch_fs *c)
@@ -56,8 +65,9 @@ void bch2_io_error_work(struct work_struct *work)
up_write(&c->state_lock);
}
-void bch2_io_error(struct bch_dev *ca)
+void bch2_io_error(struct bch_dev *ca, enum bch_member_error_type type)
{
+ atomic64_inc(&ca->errors[type]);
//queue_work(system_long_wq, &ca->io_error_work);
}
@@ -68,40 +78,66 @@ enum ask_yn {
YN_ALLYES,
};
+static enum ask_yn parse_yn_response(char *buf)
+{
+ buf = strim(buf);
+
+ if (strlen(buf) == 1)
+ switch (buf[0]) {
+ case 'n':
+ return YN_NO;
+ case 'y':
+ return YN_YES;
+ case 'N':
+ return YN_ALLNO;
+ case 'Y':
+ return YN_ALLYES;
+ }
+ return -1;
+}
+
#ifdef __KERNEL__
-#define bch2_fsck_ask_yn() YN_NO
+static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
+{
+ struct stdio_redirect *stdio = c->stdio;
+
+ if (c->stdio_filter && c->stdio_filter != current)
+ stdio = NULL;
+
+ if (!stdio)
+ return YN_NO;
+
+ char buf[100];
+ int ret;
+
+ do {
+ bch2_print(c, " (y,n, or Y,N for all errors of this type) ");
+
+ int r = bch2_stdio_redirect_readline(stdio, buf, sizeof(buf) - 1);
+ if (r < 0)
+ return YN_NO;
+ buf[r] = '\0';
+ } while ((ret = parse_yn_response(buf)) < 0);
+
+ return ret;
+}
#else
#include "tools-util.h"
-enum ask_yn bch2_fsck_ask_yn(void)
+static enum ask_yn bch2_fsck_ask_yn(struct bch_fs *c)
{
char *buf = NULL;
size_t buflen = 0;
- bool ret;
+ int ret;
- while (true) {
+ do {
fputs(" (y,n, or Y,N for all errors of this type) ", stdout);
fflush(stdout);
if (getline(&buf, &buflen, stdin) < 0)
die("error reading from standard input");
-
- strim(buf);
- if (strlen(buf) != 1)
- continue;
-
- switch (buf[0]) {
- case 'n':
- return YN_NO;
- case 'y':
- return YN_YES;
- case 'N':
- return YN_ALLNO;
- case 'Y':
- return YN_ALLYES;
- }
- }
+ } while ((ret = parse_yn_response(buf)) < 0);
free(buf);
return ret;
@@ -113,34 +149,37 @@ static struct fsck_err_state *fsck_err_get(struct bch_fs *c, const char *fmt)
{
struct fsck_err_state *s;
- if (test_bit(BCH_FS_FSCK_DONE, &c->flags))
+ if (!test_bit(BCH_FS_fsck_running, &c->flags))
return NULL;
- list_for_each_entry(s, &c->fsck_errors, list)
+ list_for_each_entry(s, &c->fsck_error_msgs, list)
if (s->fmt == fmt) {
/*
* move it to the head of the list: repeated fsck errors
* are common
*/
- list_move(&s->list, &c->fsck_errors);
+ list_move(&s->list, &c->fsck_error_msgs);
return s;
}
s = kzalloc(sizeof(*s), GFP_NOFS);
if (!s) {
- if (!c->fsck_alloc_err)
+ if (!c->fsck_alloc_msgs_err)
bch_err(c, "kmalloc err, cannot ratelimit fsck errs");
- c->fsck_alloc_err = true;
+ c->fsck_alloc_msgs_err = true;
return NULL;
}
INIT_LIST_HEAD(&s->list);
s->fmt = fmt;
- list_add(&s->list, &c->fsck_errors);
+ list_add(&s->list, &c->fsck_error_msgs);
return s;
}
-int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
+int bch2_fsck_err(struct bch_fs *c,
+ enum bch_fsck_flags flags,
+ enum bch_sb_error_id err,
+ const char *fmt, ...)
{
struct fsck_err_state *s = NULL;
va_list args;
@@ -148,11 +187,17 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
struct printbuf buf = PRINTBUF, *out = &buf;
int ret = -BCH_ERR_fsck_ignore;
+ if ((flags & FSCK_CAN_FIX) &&
+ test_bit(err, c->sb.errors_silent))
+ return -BCH_ERR_fsck_fix;
+
+ bch2_sb_error_count(c, err);
+
va_start(args, fmt);
prt_vprintf(out, fmt, args);
va_end(args);
- mutex_lock(&c->fsck_error_lock);
+ mutex_lock(&c->fsck_error_msgs_lock);
s = fsck_err_get(c, fmt);
if (s) {
/*
@@ -162,7 +207,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
*/
if (s->last_msg && !strcmp(buf.buf, s->last_msg)) {
ret = s->ret;
- mutex_unlock(&c->fsck_error_lock);
+ mutex_unlock(&c->fsck_error_msgs_lock);
printbuf_exit(&buf);
return ret;
}
@@ -187,7 +232,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
prt_printf(out, bch2_log_msg(c, ""));
#endif
- if (test_bit(BCH_FS_FSCK_DONE, &c->flags)) {
+ if (!test_bit(BCH_FS_fsck_running, &c->flags)) {
if (c->opts.errors != BCH_ON_ERROR_continue ||
!(flags & (FSCK_CAN_FIX|FSCK_CAN_IGNORE))) {
prt_str(out, ", shutting down");
@@ -212,10 +257,13 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
int ask;
prt_str(out, ": fix?");
- bch2_print_string_as_lines(KERN_ERR, out->buf);
+ if (bch2_fs_stdio_redirect(c))
+ bch2_print(c, "%s", out->buf);
+ else
+ bch2_print_string_as_lines(KERN_ERR, out->buf);
print = false;
- ask = bch2_fsck_ask_yn();
+ ask = bch2_fsck_ask_yn(c);
if (ask >= YN_ALLNO && s)
s->fix = ask == YN_ALLNO
@@ -244,10 +292,14 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
!(flags & FSCK_CAN_IGNORE)))
ret = -BCH_ERR_fsck_errors_not_fixed;
- if (print)
- bch2_print_string_as_lines(KERN_ERR, out->buf);
+ if (print) {
+ if (bch2_fs_stdio_redirect(c))
+ bch2_print(c, "%s\n", out->buf);
+ else
+ bch2_print_string_as_lines(KERN_ERR, out->buf);
+ }
- if (!test_bit(BCH_FS_FSCK_DONE, &c->flags) &&
+ if (test_bit(BCH_FS_fsck_running, &c->flags) &&
(ret != -BCH_ERR_fsck_fix &&
ret != -BCH_ERR_fsck_ignore))
bch_err(c, "Unable to continue, halting");
@@ -257,7 +309,7 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
if (s)
s->ret = ret;
- mutex_unlock(&c->fsck_error_lock);
+ mutex_unlock(&c->fsck_error_msgs_lock);
printbuf_exit(&buf);
@@ -265,10 +317,10 @@ int bch2_fsck_err(struct bch_fs *c, unsigned flags, const char *fmt, ...)
bch2_inconsistent_error(c);
if (ret == -BCH_ERR_fsck_fix) {
- set_bit(BCH_FS_ERRORS_FIXED, &c->flags);
+ set_bit(BCH_FS_errors_fixed, &c->flags);
} else {
- set_bit(BCH_FS_ERRORS_NOT_FIXED, &c->flags);
- set_bit(BCH_FS_ERROR, &c->flags);
+ set_bit(BCH_FS_errors_not_fixed, &c->flags);
+ set_bit(BCH_FS_error, &c->flags);
}
return ret;
@@ -278,9 +330,9 @@ void bch2_flush_fsck_errs(struct bch_fs *c)
{
struct fsck_err_state *s, *n;
- mutex_lock(&c->fsck_error_lock);
+ mutex_lock(&c->fsck_error_msgs_lock);
- list_for_each_entry_safe(s, n, &c->fsck_errors, list) {
+ list_for_each_entry_safe(s, n, &c->fsck_error_msgs, list) {
if (s->ratelimited && s->last_msg)
bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->last_msg);
@@ -289,5 +341,5 @@ void bch2_flush_fsck_errs(struct bch_fs *c)
kfree(s);
}
- mutex_unlock(&c->fsck_error_lock);
+ mutex_unlock(&c->fsck_error_msgs_lock);
}
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