Commit ed0eaa14 authored by Liu Bo's avatar Liu Bo Committed by Chris Mason
Browse files

Btrfs: make sure that we've made everything in pinned tree clean 



Since we have two trees for recording pinned extents, we need to go through
both of them to make sure that we've done everything clean.

Signed-off-by: default avatarLiu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent 6e841e32

fs/btrfs/disk-io.c

+11 −0
Original line number Diff line number Diff line
@@ -3557,8 +3557,10 @@ static int btrfs_destroy_pinned_extent(struct btrfs_root *root, 
	u64 start;

	u64 end;

	int ret;

	bool loop = true;



	unpin = pinned_extents;

again:

	while (1) {

		ret = find_first_extent_bit(unpin, 0, &start, &end,

					    EXTENT_DIRTY);
@@ -3576,6 +3578,15 @@ static int btrfs_destroy_pinned_extent(struct btrfs_root *root, 
		cond_resched();

	}



	if (loop) {

		if (unpin == &root->fs_info->freed_extents[0])

			unpin = &root->fs_info->freed_extents[1];

		else

			unpin = &root->fs_info->freed_extents[0];

		loop = false;

		goto again;

	}



	return 0;

}