On 07/22, Oleg Nesterov wrote:
>
> +static void sb_freeze_unlock(struct super_block *sb)
> +{
> + int level;
> +
> + for (level = 0; level < SB_FREEZE_LEVELS; ++level)
> + percpu_up_write(sb->s_writers.rw_sem + level);
> }
OK, this is not exactly right, see the fix below.
Otherwise seems to work, but see another email I'll send in reply to 0/4.
Oleg.
--- a/fs/super.c
+++ b/fs/super.c
@@ -1237,7 +1237,7 @@ static void sb_freeze_unlock(struct super_block *sb)
{
int level;
- for (level = 0; level < SB_FREEZE_LEVELS; ++level)
+ for (level = SB_FREEZE_LEVELS; --level >= 0; )
percpu_up_write(sb->s_writers.rw_sem + level);
}
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