When a fs is frozen, a process can hang because we wait in
uniterruptible state. We give the user the possibility to kill the process.
Not-signed-off-by: Marco Stornelli <marco.stornelli@xxxxxxxxx>
---
--- fs/super.c.orig 2013-03-24 09:56:33.000000000 +0100
+++ fs/super.c 2013-03-24 09:58:41.000000000 +0100
@@ -1198,7 +1198,7 @@ retry:
if (unlikely(sb->s_writers.frozen >= level)) {
if (!wait)
return 0;
- wait_event(sb->s_writers.wait_unfrozen,
+ wait_event_killable(sb->s_writers.wait_unfrozen,
sb->s_writers.frozen < level);
}
@@ -1248,7 +1248,7 @@ static void sb_wait_write(struct super_b
* of frozen and checking of the counter
*/
prepare_to_wait(&sb->s_writers.wait, &wait,
- TASK_UNINTERRUPTIBLE);
+ TASK_KILLABLE);
writers = percpu_counter_sum(&sb->s_writers.counter[level-1]);
if (writers)
--
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