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bcachefs: Add an option for fsck error ratelimiting

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Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-11-06 15:32:11 -05:00 committed by Kent Overstreet
parent ef496cd268
commit e2ee3eaab7
3 changed files with 21 additions and 4 deletions
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13
fs/bcachefs/error.c
View file

@ -64,7 +64,7 @@ void bch2_io_error(struct bch_dev *ca)
enum fsck_err_ret bch2_fsck_err(struct bch_fs *c, unsigned flags,
const char *fmt, ...)
{
struct fsck_err_state *s;
struct fsck_err_state *s = NULL;
va_list args;
bool fix = false, print = true, suppressing = false;
char _buf[sizeof(s->buf)], *buf = _buf;
@ -99,8 +99,13 @@ enum fsck_err_ret bch2_fsck_err(struct bch_fs *c, unsigned flags,
found:
list_move(&s->list, &c->fsck_errors);
s->nr++;
suppressing = s->nr == FSCK_ERR_RATELIMIT_NR;
print = s->nr <= FSCK_ERR_RATELIMIT_NR;
if (c->opts.ratelimit_errors &&
s->nr >= FSCK_ERR_RATELIMIT_NR) {
if (s->nr == FSCK_ERR_RATELIMIT_NR)
suppressing = true;
else
print = false;
}
buf = s->buf;
print:
va_start(args, fmt);
@ -156,7 +161,7 @@ void bch2_flush_fsck_errs(struct bch_fs *c)
mutex_lock(&c->fsck_error_lock);
list_for_each_entry_safe(s, n, &c->fsck_errors, list) {
if (s->nr > FSCK_ERR_RATELIMIT_NR)
if (s->ratelimited)
bch_err(c, "Saw %llu errors like:\n %s", s->nr, s->buf);
list_del(&s->list);

1
fs/bcachefs/error.h
View file

@ -114,6 +114,7 @@ struct fsck_err_state {
struct list_head list;
const char *fmt;
u64 nr;
bool ratelimited;
char buf[512];
};

11
fs/bcachefs/opts.h
View file

@ -68,6 +68,12 @@ enum opt_type {
* - helptext
*/
#ifdef __KERNEL__
#define RATELIMIT_ERRORS true
#else
#define RATELIMIT_ERRORS false
#endif
#define BCH_OPTS() \
x(block_size, u16, \
OPT_FORMAT, \
@ -227,6 +233,11 @@ enum opt_type {
OPT_BOOL(), \
NO_SB_OPT, false, \
NULL, "Fix errors during fsck without asking") \
x(ratelimit_errors, u8, \
OPT_MOUNT, \
OPT_BOOL(), \
NO_SB_OPT, RATELIMIT_ERRORS, \
NULL, "Ratelimit error messages during fsck") \
x(nochanges, u8, \
OPT_MOUNT, \
OPT_BOOL(), \