Btrfs: fix page cache memory leak

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 354524adf984..5828a104dfef 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -5,7 +5,7 @@
 #include <linux/scatterlist.h>
 #include <linux/swap.h>
 #include <linux/radix-tree.h>
-#include <linux/file.h>
+#include <linux/writeback.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
@@ -694,7 +694,7 @@ static int free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
         return 0;
 }
 
-int del_fs_roots(struct btrfs_fs_info *fs_info)
+static int del_fs_roots(struct btrfs_fs_info *fs_info)
 {
         int ret;
         struct btrfs_root *gang[8];
@@ -781,3 +781,7 @@ void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf)
         brelse(buf);
 }
 
+void btrfs_btree_balance_dirty(struct btrfs_root *root)
+{
+        balance_dirty_pages_ratelimited(root->fs_info->btree_inode->i_mapping);
+}