[2/6] btrfs: delayed-ref: pass delayed_refs directly to btrfs_delayed_ref_lock()
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Message ID 20181011054038.5428-3-lufq.fnst@cn.fujitsu.com
State New
Headers show
Series
  • Some trivail cleanup about dealyed-refs
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Commit Message

Lu Fengqi Oct. 11, 2018, 5:40 a.m. UTC
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.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
---
 fs/btrfs/delayed-ref.c | 5 +----
 fs/btrfs/delayed-ref.h | 2 +-
 fs/btrfs/extent-tree.c | 2 +-
 3 files changed, 3 insertions(+), 6 deletions(-)

Patch
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diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 13ae86252c4c..885581852bea 100644
--- 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 aa66ad6919ab..ef6f5cf75b3e 100644
--- 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 22acc1545147..77156bd2a9a7 100644
--- 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);
 
 	/*