f2fs: wake up discard_thread iff there is a candidate
This patch fixes to avoid needless wake ups.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a04bd75..4e2529f 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1494,8 +1494,7 @@
kmem_cache_free(discard_entry_slab, entry);
}
- dcc->discard_wake = 1;
- wake_up_interruptible_all(&dcc->discard_wait_queue);
+ wake_up_discard_thread(sbi, false);
}
static int create_discard_cmd_control(struct f2fs_sb_info *sbi)