2005-03-21 18:18:39

by OGAWA Hirofumi

[permalink] [raw]
Subject: [PATCH 1/2] FAT: set MS_NOATIME to msdos

Hi,

These patches is fixes and improvements for ->adate of msdos.

Please apply.
--
OGAWA Hirofumi <[email protected]>



MSDOS doesn't have atime, so this sets MS_NOATIME to msdos in order
that we don't get unnecessary writes.

Signed-off-by: Werner Almesberger <[email protected]>
Signed-off-by: OGAWA Hirofumi <[email protected]>
---

fs/fat/inode.c | 3 ++-
fs/msdos/namei.c | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)

diff -puN fs/fat/inode.c~fat_msdos-use-noatime fs/fat/inode.c
--- linux-2.6.11/fs/fat/inode.c~fat_msdos-use-noatime 2005-03-16 11:11:45.000000000 +0900
+++ linux-2.6.11-hirofumi/fs/fat/inode.c 2005-03-16 11:13:30.000000000 +0900
@@ -431,7 +431,8 @@ static void __exit fat_destroy_inodecach

static int fat_remount(struct super_block *sb, int *flags, char *data)
{
- *flags |= MS_NODIRATIME;
+ struct msdos_sb_info *sbi = MSDOS_SB(sb);
+ *flags |= MS_NODIRATIME | (sbi->options.isvfat ? 0 : MS_NOATIME);
return 0;
}

diff -puN fs/msdos/namei.c~fat_msdos-use-noatime fs/msdos/namei.c
--- linux-2.6.11/fs/msdos/namei.c~fat_msdos-use-noatime 2005-03-16 11:12:11.000000000 +0900
+++ linux-2.6.11-hirofumi/fs/msdos/namei.c 2005-03-16 11:13:38.000000000 +0900
@@ -671,6 +671,7 @@ static int msdos_fill_super(struct super
if (res)
return res;

+ sb->s_flags |= MS_NOATIME;
sb->s_root->d_op = &msdos_dentry_operations;
return 0;
}
_