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Btrfs: Add flush barriers on commit

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-01-09 09:23:21 -05:00
parent bcd987feef
commit 21ad10cf3e
3 changed files with 16 additions and 3 deletions
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9
fs/btrfs/super.c
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@@ -64,13 +64,14 @@ static void btrfs_put_super (struct super_block * sb)
enum {
Opt_subvol, Opt_nodatasum, Opt_nodatacow, Opt_max_extent,
Opt_alloc_start, Opt_err,
Opt_alloc_start, Opt_nobarrier, Opt_err,
};
static match_table_t tokens = {
{Opt_subvol, "subvol=%s"},
{Opt_nodatasum, "nodatasum"},
{Opt_nodatacow, "nodatacow"},
{Opt_nobarrier, "nobarrier"},
{Opt_max_extent, "max_extent=%s"},
{Opt_alloc_start, "alloc_start=%s"},
{Opt_err, NULL}
@@ -148,6 +149,12 @@ static int parse_options (char * options,
btrfs_set_opt(info->mount_opt, NODATASUM);
}
break;
case Opt_nobarrier:
if (info) {
printk("btrfs: turning off barriers\n");
btrfs_set_opt(info->mount_opt, NOBARRIER);
}
break;
case Opt_max_extent:
if (info) {
char *num = match_strdup(&args[0]);