read_chunk_tree() calls read_one_dev(), but for seed device we have to search the fs_uuids list, so we need the uuid_mutex. Add a comment comment, so that we can improve this part. Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx> --- fs/btrfs/volumes.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 29799d39554a..8996a1df9a21 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6889,6 +6889,10 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info) if (!path) return -ENOMEM; + /* + * uuid_mutex is needed only if we are mounting a sprout FS + * otherwise we don't need it. + */ mutex_lock(&uuid_mutex); mutex_lock(&fs_info->chunk_mutex); -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
