Commit 9aabbb2e authored Sep 28, 2018 by Josef Bacik Committed by Greg Kroah-Hartman Nov 13, 2018

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>

parent 9006ad16

fs/btrfs/free-space-cache.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1687,6 +1687,8 @@ 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,