diff options
| author | Josef Bacik <jbacik@fb.com> | 2018-09-28 07:18:00 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 11:12:55 -0800 |
| commit | 302e6eaa09d85229d52e290e6c7c4338652569af (patch) | |
| tree | 1c42c48e0636ef8c971cbd2afc55a6ff11ca365c | |
| parent | 6078b6126651588fb0131fbbb95ce17e2eb9498b (diff) | |
btrfs: reset max_extent_size on clear in a bitmap
commit 553cceb49681d60975d00892877d4c871bf220f9 upstream.
We need to clear the max_extent_size when we clear bits from a bitmap
since it could have been from the range that contains the
max_extent_size.
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index a560e38203a2..2b482be199dc 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1694,6 +1694,8 @@ static inline void __bitmap_clear_bits(struct btrfs_free_space_ctl *ctl, bitmap_clear(info->bitmap, start, count); info->bytes -= bytes; + if (info->max_extent_size > ctl->unit) + info->max_extent_size = 0; } static void bitmap_clear_bits(struct btrfs_free_space_ctl *ctl, |