[PATCH v2 05/11] btrfs: disable scrub for extent-tree-v2
From: Josef Bacik <josef@toxicpanda.com>
Date: 2021-12-15 20:40:19
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
Scrub depends on extent references for every block, and with extent tree v2 we won't have that, so disable scrub until we can add back the proper code to handle extent-tree-v2. Signed-off-by: Josef Bacik <josef@toxicpanda.com> --- fs/btrfs/ioctl.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4ae87f44ce46..c81f50774cec 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c@@ -3708,6 +3708,11 @@ static long btrfs_ioctl_scrub(struct file *file, void __user *arg) if (!capable(CAP_SYS_ADMIN)) return -EPERM; + if (btrfs_fs_incompat(fs_info, EXTENT_TREE_V2)) { + btrfs_err(fs_info, "scrub is not supported on extent tree v2 yet."); + return -EINVAL; + } + sa = memdup_user(arg, sizeof(*sa)); if (IS_ERR(sa)) return PTR_ERR(sa);
--
2.26.3