diff options
Diffstat (limited to 'fs/btrfs/compression.h')
| -rw-r--r-- | fs/btrfs/compression.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index cfdc64319186..5d01f092ae13 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -82,6 +82,14 @@ static inline unsigned int btrfs_compress_level(unsigned int type_level) return ((type_level & 0xF0) >> 4); } +/* @range_end must be exclusive. */ +static inline u32 btrfs_calc_input_length(u64 range_end, u64 cur) +{ + u64 page_end = round_down(cur, PAGE_SIZE) + PAGE_SIZE; + + return min(range_end, page_end) - cur; +} + int __init btrfs_init_compress(void); void __cold btrfs_exit_compress(void); |