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[v7,11/12] btrfs: skip space_cache v1 setup when not using it

Message ID 4661fbae3fd777faae4ef2f50a41a2ab1842b65f.1605736355.git.boris@bur.io (mailing list archive)
State New, archived
Headers show
Series btrfs: free space tree mounting fixes | expand

Commit Message

Boris Burkov Nov. 18, 2020, 11:06 p.m. UTC
If we are not using space cache v1, we should not create the free space
object or free space inodes. This comes up when we delete the existing
free space objects/inodes when migrating to v2, only to see them get
recreated for every dirtied block group.

Signed-off-by: Boris Burkov <boris@bur.io>
 fs/btrfs/block-group.c | 3 +++
 1 file changed, 3 insertions(+)
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diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index d5104560dfc9..24e3eb13f173 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -2331,6 +2331,9 @@  static int cache_save_setup(struct btrfs_block_group *block_group,
 	int retries = 0;
 	int ret = 0;
+	if (!btrfs_test_opt(fs_info, SPACE_CACHE))
+		return 0;
 	 * If this block group is smaller than 100 megs don't bother caching the
 	 * block group.