diff options
Diffstat (limited to 'fs/bcachefs/util.h')
| -rw-r--r-- | fs/bcachefs/util.h | 59 |
1 files changed, 55 insertions, 4 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index e7c3541b38f3..3e52c7f8ddd2 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -94,6 +94,7 @@ do { \ #define printbuf_tabstop_push(_buf, _n) bch2_printbuf_tabstop_push(_buf, _n) #define printbuf_indent_add(_out, _n) bch2_printbuf_indent_add(_out, _n) +#define printbuf_indent_add_nextline(_out, _n) bch2_printbuf_indent_add_nextline(_out, _n) #define printbuf_indent_sub(_out, _n) bch2_printbuf_indent_sub(_out, _n) #define prt_newline(_out) bch2_prt_newline(_out) @@ -401,11 +402,23 @@ 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 +432,7 @@ 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 +509,7 @@ 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" @@ -609,7 +622,7 @@ do { \ #define per_cpu_sum(_p) \ ({ \ - typeof(*_p) _ret = 0; \ + TYPEOF_UNQUAL(*_p) _ret = 0; \ \ int cpu; \ for_each_possible_cpu(cpu) \ @@ -726,4 +739,42 @@ static inline void memcpy_swab(void *_dst, void *_src, size_t len) *--dst = *src++; } +#define set_flags(_map, _in, _out) \ +do { \ + unsigned _i; \ + \ + for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \ + if ((_in) & (1 << _i)) \ + (_out) |= _map[_i]; \ + else \ + (_out) &= ~_map[_i]; \ +} while (0) + +#define map_flags(_map, _in) \ +({ \ + unsigned _out = 0; \ + \ + set_flags(_map, _in, _out); \ + _out; \ +}) + +#define map_flags_rev(_map, _in) \ +({ \ + unsigned _i, _out = 0; \ + \ + for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \ + if ((_in) & _map[_i]) { \ + (_out) |= 1 << _i; \ + (_in) &= ~_map[_i]; \ + } \ + (_out); \ +}) + +#define map_defined(_map) \ +({ \ + unsigned _in = ~0; \ + \ + map_flags_rev(_map, _in); \ +}) + #endif /* _BCACHEFS_UTIL_H */ |