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btrfs: add block-group tree to lockdep classes 

The block group tree was not present among the lockdep classes. We could
get potentially lockdep warnings but so far none has been seen, also
because block-group-tree is a relatively new feature.

CC: stable@vger.kernel.org # 6.1+
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2023-06-01 00:33:01 +02:00
parent 7027f87108
commit 1a1b0e729d
1 changed files with 3 additions and 2 deletions
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5
fs/btrfs/locking.c
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@ -57,8 +57,8 @@
static struct btrfs_lockdep_keyset {
u64 id; /* root objectid */
/* Longest entry: btrfs-free-space-00 */
char names[BTRFS_MAX_LEVEL][20];
/* Longest entry: btrfs-block-group-00 */
char names[BTRFS_MAX_LEVEL][24];
struct lock_class_key keys[BTRFS_MAX_LEVEL];
} btrfs_lockdep_keysets[] = {
{ .id = BTRFS_ROOT_TREE_OBJECTID, DEFINE_NAME("root") },
@ -72,6 +72,7 @@ static struct btrfs_lockdep_keyset {
{ .id = BTRFS_DATA_RELOC_TREE_OBJECTID, DEFINE_NAME("dreloc") },
{ .id = BTRFS_UUID_TREE_OBJECTID, DEFINE_NAME("uuid") },
{ .id = BTRFS_FREE_SPACE_TREE_OBJECTID, DEFINE_NAME("free-space") },
{ .id = BTRFS_BLOCK_GROUP_TREE_OBJECTID, DEFINE_NAME("block-group") },
{ .id = 0, DEFINE_NAME("tree") },
};