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authorJosef Bacik <josef@toxicpanda.com>2023-11-22 20:17:41 +0300
committerDavid Sterba <dsterba@suse.com>2023-12-15 22:27:03 +0300
commit272efa308fb6bfc7b04a4b6f6dde7b0431b51fee (patch)
treea2ffe01e5938965dccb8f46a12907d30b2d536ec
parenta6a8f22a4af6c572d9e01ca9f7b515bf0cbb63b1 (diff)
downloadlinux-272efa308fb6bfc7b04a4b6f6dde7b0431b51fee.tar.xz
btrfs: do not allow free space tree rebuild on extent tree v2
We currently don't allow these options to be set if we're extent tree v2 via the mount option parsing. However when we switch to the new mount API we'll no longer have the super block loaded, so won't be able to make this distinction at mount option parsing time. Address this by checking for extent tree v2 at the point where we make the decision to rebuild the free space tree. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Acked-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/disk-io.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 33e48e3865c5..6fcb9390913e 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2969,7 +2969,11 @@ int btrfs_start_pre_rw_mount(struct btrfs_fs_info *fs_info)
if (btrfs_test_opt(fs_info, CLEAR_CACHE) &&
btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
- rebuild_free_space_tree = true;
+ if (btrfs_fs_incompat(fs_info, EXTENT_TREE_V2))
+ btrfs_warn(fs_info,
+ "'clear_cache' option is ignored with extent tree v2");
+ else
+ rebuild_free_space_tree = true;
} else if (btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE) &&
!btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE_VALID)) {
btrfs_warn(fs_info, "free space tree is invalid");