diff options
Diffstat (limited to 'fs/btrfs/misc.h')
| -rw-r--r-- | fs/btrfs/misc.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/fs/btrfs/misc.h b/fs/btrfs/misc.h index 768583a440e1..155d1d70ecd2 100644 --- a/fs/btrfs/misc.h +++ b/fs/btrfs/misc.h @@ -8,6 +8,19 @@ #include <linux/math64.h> #include <linux/rbtree.h> +/* + * Don't merge slabs in debug build so we can verify leaks when reloading module. + */ +#ifdef CONFIG_BTRFS_DEBUG +#ifdef SLAB_NO_MERGE +#define BTRFS_DEBUG_SLAB_NO_MERGE SLAB_NO_MERGE +#else +#define BTRFS_DEBUG_SLAB_NO_MERGE 0 +#endif +#else +#define BTRFS_DEBUG_SLAB_NO_MERGE 0 +#endif + #define in_range(b, first, len) ((b) >= (first) && (b) < (first) + (len)) /* @@ -143,4 +156,24 @@ static inline struct rb_node *rb_simple_insert(struct rb_root *root, u64 bytenr, return NULL; } +static inline bool bitmap_test_range_all_set(const unsigned long *addr, + unsigned long start, + unsigned long nbits) +{ + unsigned long found_zero; + + found_zero = find_next_zero_bit(addr, start + nbits, start); + return (found_zero == start + nbits); +} + +static inline bool bitmap_test_range_all_zero(const unsigned long *addr, + unsigned long start, + unsigned long nbits) +{ + unsigned long found_set; + + found_set = find_next_bit(addr, start + nbits, start); + return (found_set == start + nbits); +} + #endif |