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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-02-04 01:19:38 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-03-08 14:58:30 +0900
commitae191838b0251d73b9d0a7254c6938406f5f6320 (patch)
tree5f2b08f5ab421c3644a988acc5ec7a1c65a631bd /fs/nilfs2/ioctl.c
parent4138ec23820012009aecc2b02856c62872dd3c34 (diff)
downloadlinux-ae191838b0251d73b9d0a7254c6938406f5f6320.tar.bz2
nilfs2: optimize rec_len functions
This is a similar change to those in ext2/ext3 codebase (commit 40a063f6691ce937 and a4ae3094869f18e2, respectively). The addition of 64k block capability in the rec_len_from_disk and rec_len_to_disk functions added a bit of math overhead which slows down file create workloads needlessly when the architecture cannot even support 64k blocks. This will cut the corner. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/ioctl.c')
-rw-r--r--fs/nilfs2/ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index d89173edd7fe..5471eed5eccb 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -28,6 +28,7 @@
#include <linux/vmalloc.h>
#include <linux/compat.h> /* compat_ptr() */
#include <linux/mount.h> /* mnt_want_write(), mnt_drop_write() */
+#include <linux/buffer_head.h>
#include <linux/nilfs2_fs.h>
#include "nilfs.h"
#include "segment.h"