diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2021-12-15 15:40:03 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-03-14 13:13:48 +0100 |
| commit | 813febdbe6c9f691d7a1a1c8f6a31bd6461a1ae0 (patch) | |
| tree | ccdc514968d0692892eb6bcfdd1b9f73dd859324 /fs/btrfs/ioctl.c | |
| parent | da32c6d5708b6858d8d2557b0034de1bfa51ee3c (diff) | |
| download | linux-813febdbe6c9f691d7a1a1c8f6a31bd6461a1ae0.tar.bz2 | |
btrfs: disable snapshot creation/deletion for extent tree v2
When we stop tracking metadata blocks all of snapshotting will break, so
disable it until I add the snapshot root and drop tree support.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index ecf3e05104aa..8b2538b7027d 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -751,6 +751,13 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, struct btrfs_trans_handle *trans; int ret; + /* We do not support snapshotting right now. */ + if (btrfs_fs_incompat(fs_info, EXTENT_TREE_V2)) { + btrfs_warn(fs_info, + "extent tree v2 doesn't support snapshotting yet"); + return -EOPNOTSUPP; + } + if (!test_bit(BTRFS_ROOT_SHAREABLE, &root->state)) return -EINVAL; @@ -3174,6 +3181,13 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, int err = 0; bool destroy_parent = false; + /* We don't support snapshots with extent tree v2 yet. */ + if (btrfs_fs_incompat(fs_info, EXTENT_TREE_V2)) { + btrfs_err(fs_info, + "extent tree v2 doesn't support snapshot deletion yet"); + return -EOPNOTSUPP; + } + if (destroy_v2) { vol_args2 = memdup_user(arg, sizeof(*vol_args2)); if (IS_ERR(vol_args2)) |