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Date:   Wed, 8 Aug 2018 21:47:55 +0800
From:   zhong jiang <>
To:     <>, <>, <>
CC:     <>, <>
Subject: [PATCHv3 3/3] fs/btrfs/tree-log: change btrfs_pin_log_trans to be void function

btrfs_pin_log_trans defines the variable "ret" for return valule,
but it is not modified after initialization. Further, I find that
any of the callees do not handle the return value, so it is safe
to drop the unneeded value "ret".

Signed-off-by: zhong jiang <>
 fs/btrfs/tree-log.c | 5 +----
 fs/btrfs/tree-log.h | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1650dc4..4ed7379 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -205,14 +205,11 @@ static int join_running_log_trans(struct btrfs_root *root)
  * until you call btrfs_end_log_trans() or it makes any future
  * log transactions wait until you call btrfs_end_log_trans()
-int btrfs_pin_log_trans(struct btrfs_root *root)
+void btrfs_pin_log_trans(struct btrfs_root *root)
-	int ret = -ENOENT;
-	return ret;
diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index 122e68b..8977678 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -65,7 +65,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
 			       const char *name, int name_len,
 			       struct btrfs_inode *inode, u64 dirid);
 void btrfs_end_log_trans(struct btrfs_root *root);
-int btrfs_pin_log_trans(struct btrfs_root *root);
+void btrfs_pin_log_trans(struct btrfs_root *root);
 void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
 			     struct btrfs_inode *dir, struct btrfs_inode *inode,
 			     int for_rename);

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