diff options
Diffstat (limited to 'fs/bcachefs/util.h')
| -rw-r--r-- | fs/bcachefs/util.h | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index 1e94f89aabed..3e52c7f8ddd2 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -622,7 +622,7 @@ do { \ #define per_cpu_sum(_p) \ ({ \ - typeof(*_p) _ret = 0; \ + TYPEOF_UNQUAL(*_p) _ret = 0; \ \ int cpu; \ for_each_possible_cpu(cpu) \ @@ -739,4 +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 */ |