diff options
Diffstat (limited to 'fs/btrfs/free-space-cache.h')
| -rw-r--r-- | fs/btrfs/free-space-cache.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h index 66c073f854dc..5f25d94c9946 100644 --- a/fs/btrfs/free-space-cache.h +++ b/fs/btrfs/free-space-cache.h @@ -8,10 +8,16 @@ /* * This is the trim state of an extent or bitmap. + * + * BTRFS_TRIM_STATE_TRIMMING is special and used to maintain the state of a + * bitmap as we may need several trims to fully trim a single bitmap entry. + * This is reset should any free space other than trimmed space be added to the + * bitmap. */ enum btrfs_trim_state { BTRFS_TRIM_STATE_UNTRIMMED, BTRFS_TRIM_STATE_TRIMMED, + BTRFS_TRIM_STATE_TRIMMING, }; struct btrfs_free_space { @@ -29,6 +35,12 @@ static inline bool btrfs_free_space_trimmed(struct btrfs_free_space *info) return (info->trim_state == BTRFS_TRIM_STATE_TRIMMED); } +static inline bool btrfs_free_space_trimming_bitmap( + struct btrfs_free_space *info) +{ + return (info->trim_state == BTRFS_TRIM_STATE_TRIMMING); +} + struct btrfs_free_space_ctl { spinlock_t tree_lock; struct rb_root free_space_offset; |