diff options
Diffstat (limited to 'fs/bcachefs/util.h')
| -rw-r--r-- | fs/bcachefs/util.h | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index 1a1720116071..7d921fc920a0 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -401,11 +401,23 @@ do { \ _ret; \ }) -size_t bch2_rand_range(size_t); +u64 bch2_get_random_u64_below(u64); void memcpy_to_bio(struct bio *, struct bvec_iter, const void *); void memcpy_from_bio(void *, struct bio *, struct bvec_iter); +#ifdef CONFIG_BCACHEFS_DEBUG +void bch2_corrupt_bio(struct bio *); + +static inline void bch2_maybe_corrupt_bio(struct bio *bio, unsigned ratio) +{ + if (ratio && !get_random_u32_below(ratio)) + bch2_corrupt_bio(bio); +} +#else +#define bch2_maybe_corrupt_bio(...) do {} while (0) +#endif + static inline void memcpy_u64s_small(void *dst, const void *src, unsigned u64s) { @@ -419,7 +431,7 @@ static inline void memcpy_u64s_small(void *dst, const void *src, static inline void __memcpy_u64s(void *dst, const void *src, unsigned u64s) { -#ifdef CONFIG_X86_64 +#if defined(CONFIG_X86_64) && !defined(CONFIG_KMSAN) long d0, d1, d2; asm volatile("rep ; movsq" @@ -496,7 +508,7 @@ static inline void __memmove_u64s_up(void *_dst, const void *_src, u64 *dst = (u64 *) _dst + u64s - 1; u64 *src = (u64 *) _src + u64s - 1; -#ifdef CONFIG_X86_64 +#if defined(CONFIG_X86_64) && !defined(CONFIG_KMSAN) long d0, d1, d2; asm volatile("std ;\n" @@ -670,8 +682,6 @@ static inline int cmp_le32(__le32 l, __le32 r) #include <linux/uuid.h> -#define QSTR(n) { { { .len = strlen(n) } }, .name = n } - static inline bool qstr_eq(const struct qstr l, const struct qstr r) { return l.len == r.len && !memcmp(l.name, r.name, l.len); |