Hi,
as far as I can tell, none of FAT or its offsprings use atime, so
perhaps fs/fat/inode.c should just set MS_NOATIME, so that we don't
get unnecessary "inode" writes ? (They hurt if you want to reduce
worst-case latency in the write path.)
Here's a patch for 2.6.11 (with some offset, because I pulled it
from a larger patch).
Does this look good ?
Thanks,
- Werner
---------------------------------- cut here -----------------------------------
Signed-off-by: Werner Almesberger <[EMAIL PROTECTED]>
--- linux-2.6.11-orig/fs/fat/inode.c Wed Mar 2 04:38:08 2005
+++ linux-2.6.11/fs/fat/inode.c Thu Mar 3 01:35:57 2005
@@ -413,7 +483,7 @@ static void __exit fat_destroy_inodecach
static int fat_remount(struct super_block *sb, int *flags, char *data)
{
- *flags |= MS_NODIRATIME;
+ *flags |= MS_NODIRATIME | MS_NOATIME;
return 0;
}
@@ -1058,7 +1128,7 @@ int fat_fill_super(struct super_block *s
sb->s_fs_info = sbi;
memset(sbi, 0, sizeof(struct msdos_sb_info));
- sb->s_flags |= MS_NODIRATIME;
+ sb->s_flags |= MS_NODIRATIME | MS_NOATIME;
sb->s_magic = MSDOS_SUPER_MAGIC;
sb->s_op = &fat_sops;
sb->s_export_op = &fat_export_ops;
--
_________________________________________________________________________
/ Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] /
/_http://www.almesberger.net/____________________________________________/
-
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
