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| author | David Sterba <dsterba@suse.com> | 2019-03-27 16:19:55 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-07-02 12:30:47 +0200 |
| commit | 38e9372e391deabf19c76c88b59b5e16f304627a (patch) | |
| tree | 0e648b96e037425d587abc6b7ab4cd0086815aa3 /fs | |
| parent | 93ead46b038037cd717cf46c9170af2531a6eb58 (diff) | |
| download | linux-next-38e9372e391deabf19c76c88b59b5e16f304627a.tar.gz | |
btrfs: assert delayed ref lock in btrfs_find_delayed_ref_head
Turn the comment about required lock into an assertion.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/delayed-ref.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index a73fc23e2961..a94fae897b3f 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -957,13 +957,14 @@ int btrfs_add_delayed_extent_op(struct btrfs_trans_handle *trans, } /* - * this does a simple search for the head node for a given extent. - * It must be called with the delayed ref spinlock held, and it returns - * the head node if any where found, or NULL if not. + * This does a simple search for the head node for a given extent. Returns the + * head node if found, or NULL if not. */ struct btrfs_delayed_ref_head * btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs, u64 bytenr) { + lockdep_assert_held(&delayed_refs->lock); + return find_ref_head(delayed_refs, bytenr, false); } |