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authorMiao Xie <miaox@cn.fujitsu.com>2012-12-05 14:52:48 +0400
committerChris Mason <chris.mason@fusionio.com>2012-12-17 05:46:18 +0400
commit543eabd5e1929bc73e22b279aa911eb01447535f (patch)
tree79d0991024920c76d07eb573a9c8dceb0daba06e /fs/btrfs
parentfb57dc817c24d46b035320d871b7a3fcc778558d (diff)
downloadlinux-543eabd5e1929bc73e22b279aa911eb01447535f.tar.xz
Btrfs: don't auto defrag a file when doing directIO
If we runt the direct IO, we should not run auto defrag, because it may introduce buffered IO vs direcIO problem, and make direct IO slow down. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/inode.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 657f16d9c78b..bf609581c5d0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5692,9 +5692,6 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
if (IS_ERR(trans))
return ERR_CAST(trans);
- if (start <= BTRFS_I(inode)->disk_i_size && len < 64 * 1024)
- btrfs_add_inode_defrag(trans, inode);
-
trans->block_rsv = &root->fs_info->delalloc_block_rsv;
alloc_hint = get_extent_allocation_hint(inode, start, len);