Btrfs: Optimize csum insertion to create larger items when possible

This reduces the number of calls to btrfs_extend_item and greatly lowers
the cpu usage while writing large files.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 02d802cdd59b..7efc0470abf1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -118,7 +118,7 @@ int btrfs_writepage_io_hook(struct page *page, u64 start, u64 end)
         trans = btrfs_start_transaction(root, 1);
         btrfs_set_trans_block_group(trans, inode);
         kaddr = kmap(page);
-        btrfs_csum_file_block(trans, root, inode->i_ino,
+        btrfs_csum_file_block(trans, root, inode, inode->i_ino,
                               start, kaddr + offset, end - start + 1);
         kunmap(page);
         ret = btrfs_end_transaction(trans, root);