diff options
| author | Dennis Zhou <dennis@kernel.org> | 2019-09-30 14:50:18 -0700 |
|---|---|---|
| committer | Dennis Zhou <dennis@kernel.org> | 2019-10-25 13:03:55 -0700 |
| commit | ff7f0695615045acd92ad79ac4d1bf93a148c5ca (patch) | |
| tree | 705ce6130863da88f13c7a8de4c6cca61f0911dc | |
| parent | fbd82fe6eac8985ebdba8a988ddc634e2d25532f (diff) | |
| download | misc-btrfs/discard+bg_cleanup.tar.gz | |
btrfs: make smaller extents more likely to go into bitmapsbtrfs/discard+bg_cleanup
It's less than ideal for small extents to eat into our extent budget, so
force extents <= 32KB into the bitmaps save for the first handful.
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 49a4e98c1bcf26..223e8f66dc4887 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2109,8 +2109,8 @@ static bool use_bitmap(struct btrfs_free_space_ctl *ctl, * of cache left then go ahead an dadd them, no sense in adding * the overhead of a bitmap if we don't have to. */ - if (info->bytes <= fs_info->sectorsize * 4) { - if (ctl->free_extents * 2 <= ctl->extents_thresh) + if (info->bytes <= fs_info->sectorsize * 8) { + if (ctl->free_extents * 3 <= ctl->extents_thresh) return false; } else { return false; |