f2fs: don't stop GC if GC is contended
Let's do GC as much as possible, while gc_urgent is set.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 3018f23..125ea85 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -76,14 +76,15 @@
* invalidated soon after by user update or deletion.
* So, I'd like to wait some time to collect dirty segments.
*/
- if (!mutex_trylock(&sbi->gc_mutex))
- goto next;
-
if (gc_th->gc_urgent) {
wait_ms = gc_th->urgent_sleep_time;
+ mutex_lock(&sbi->gc_mutex);
goto do_gc;
}
+ if (!mutex_trylock(&sbi->gc_mutex))
+ goto next;
+
if (!is_idle(sbi)) {
increase_sleep_time(gc_th, &wait_ms);
mutex_unlock(&sbi->gc_mutex);