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bcachefs: add no_invalid_checks flag

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Setting this flag on a filesystem results in validity checks being
skipped when writing bkeys. This flag will be used by tooling that
deliberately injects corruption into a filesystem in order to exercise
fsck. It shouldn't be set outside of testing/debugging code.

Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Thomas Bertschinger 2024-05-09 12:37:24 -06:00 committed by Kent Overstreet
parent bceacfa97e
commit 07f9a27f19
2 changed files with 8 additions and 1 deletions
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3
fs/bcachefs/bcachefs.h
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@ -637,7 +637,8 @@ struct bch_dev {
x(error) \
x(topology_error) \
x(errors_fixed) \
x(errors_not_fixed)
x(errors_not_fixed) \
x(no_invalid_checks)
enum bch_fs_flags {
#define x(n) BCH_FS_##n,

6
fs/bcachefs/bkey_methods.c
View file

@ -126,6 +126,9 @@ int bch2_bkey_val_invalid(struct bch_fs *c, struct bkey_s_c k,
enum bch_validate_flags flags,
struct printbuf *err)
{
if (test_bit(BCH_FS_no_invalid_checks, &c->flags))
return 0;
const struct bkey_ops *ops = bch2_bkey_type_ops(k.k->type);
int ret = 0;
@ -162,6 +165,9 @@ int __bch2_bkey_invalid(struct bch_fs *c, struct bkey_s_c k,
enum bch_validate_flags flags,
struct printbuf *err)
{
if (test_bit(BCH_FS_no_invalid_checks, &c->flags))
return 0;
int ret = 0;
bkey_fsck_err_on(k.k->u64s < BKEY_U64s, c, err,