diff options
Diffstat (limited to 'fs/btrfs/free-space-cache.h')
| -rw-r--r-- | fs/btrfs/free-space-cache.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h index 6d419ba53e95..eaf30f6444dd 100644 --- a/fs/btrfs/free-space-cache.h +++ b/fs/btrfs/free-space-cache.h @@ -43,6 +43,15 @@ static inline bool btrfs_free_space_trimming_bitmap( return (info->trim_state == BTRFS_TRIM_STATE_TRIMMING); } +/* + * Deltas are an effective way to populate global statistics. Give macro names + * to make it clear what we're doing. An example is discard_extents in + * btrfs_free_space_ctl. + */ +#define BTRFS_STAT_NR_ENTRIES 2 +#define BTRFS_STAT_CURR 0 +#define BTRFS_STAT_PREV 1 + struct btrfs_free_space_ctl { spinlock_t tree_lock; struct rb_root free_space_offset; |