From: Zhaolei <zhaolei@cn.fujitsu.com>
Date: Thu, 6 Aug 2015 14:16:24 +0000 (+0800)
Subject: btrfs: Remove root argument in extent_data_ref_count()
X-Git-Tag: v4.3-rc1~16^2~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9ed0dea09fc5e8cb1926c15fc986a46a2db43da6;p=platform%2Fkernel%2Flinux-exynos.git

btrfs: Remove root argument in extent_data_ref_count()

Because it is never used.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e2ad72b..59d59d9 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1316,8 +1316,7 @@ static noinline int remove_extent_data_ref(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
-static noinline u32 extent_data_ref_count(struct btrfs_root *root,
-					  struct btrfs_path *path,
+static noinline u32 extent_data_ref_count(struct btrfs_path *path,
 					  struct btrfs_extent_inline_ref *iref)
 {
 	struct btrfs_key key;
@@ -6349,7 +6348,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 	} else {
 		if (found_extent) {
 			BUG_ON(is_data && refs_to_drop !=
-			       extent_data_ref_count(root, path, iref));
+			       extent_data_ref_count(path, iref));
 			if (iref) {
 				BUG_ON(path->slots[0] != extent_slot);
 			} else {