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Subject[PATCH 5/5] f2fs: don't stop GC if GC is contended
Date
Let's do GC as much as possible, while gc_urgent is set.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/gc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b9d93fd532a9..bc9420ce2275 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -76,14 +76,15 @@ static int gc_thread_func(void *data)
* 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);
--
2.15.0.531.g2ccb3012c9-goog
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