btrfs: delayed-ref: pass delayed_refs directly to btrfs_select_ref_head

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

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

3 files changed, 5 insertions, 8 deletions

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 7f567c944fec..59a8c0565a24 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -353,16 +353,13 @@ int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info, u64 seq)
         return ret;
 }
 
-struct btrfs_delayed_ref_head *
-btrfs_select_ref_head(struct btrfs_trans_handle *trans)
+struct btrfs_delayed_ref_head *btrfs_select_ref_head(
+                struct btrfs_delayed_ref_root *delayed_refs)
 {
-        struct btrfs_delayed_ref_root *delayed_refs;
         struct btrfs_delayed_ref_head *head;
         u64 start;
         bool loop = false;
 
-        delayed_refs = &trans->transaction->delayed_refs;
-
 again:
         start = delayed_refs->run_delayed_start;
         head = find_ref_head(delayed_refs, start, 1);
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index c3e3486a126c..d664c99ce716 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -263,8 +263,8 @@ static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head)
 }
 
 
-struct btrfs_delayed_ref_head *
-btrfs_select_ref_head(struct btrfs_trans_handle *trans);
+struct btrfs_delayed_ref_head *btrfs_select_ref_head(
+                struct btrfs_delayed_ref_root *delayed_refs);
 
 int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info, u64 seq);
 
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c4a1e8f028d3..5141fe67680b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2511,7 +2511,7 @@ static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head(
         int ret;
 
         spin_lock(&delayed_refs->lock);
-        head = btrfs_select_ref_head(trans);
+        head = btrfs_select_ref_head(delayed_refs);
         if (!head) {
                 spin_unlock(&delayed_refs->lock);
                 return head;