btrfs: delayed-ref: pass delayed_refs directly to btrfs_delayed_ref_lock

Since trans is only used for referring to delayed_refs, there is no need
to pass it instead of delayed_refs to btrfs_delayed_ref_lock().

No functional change.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 59a8c05..5d8f6d5 100644 (file)
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -204,12 +204,9 @@ static struct btrfs_delayed_ref_head* find_ref_head(
        return NULL;
 }
 
-int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
+int btrfs_delayed_ref_lock(struct btrfs_delayed_ref_root *delayed_refs,
                           struct btrfs_delayed_ref_head *head)
 {
-       struct btrfs_delayed_ref_root *delayed_refs;
-
-       delayed_refs = &trans->transaction->delayed_refs;
        lockdep_assert_held(&delayed_refs->lock);
        if (mutex_trylock(&head->mutex))
                return 0;

diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index d664c99..8e20c5c 100644 (file)
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -255,7 +255,7 @@ void btrfs_merge_delayed_refs(struct btrfs_trans_handle *trans,
 struct btrfs_delayed_ref_head *
 btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
                            u64 bytenr);
-int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
+int btrfs_delayed_ref_lock(struct btrfs_delayed_ref_root *delayed_refs,
                           struct btrfs_delayed_ref_head *head);
 static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head)
 {

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 5141fe6..3ee5d84 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2521,7 +2521,7 @@ static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head(
         * Grab the lock that says we are going to process all the refs for
         * this head
         */
-       ret = btrfs_delayed_ref_lock(trans, head);
+       ret = btrfs_delayed_ref_lock(delayed_refs, head);
        spin_unlock(&delayed_refs->lock);
 
        /*