From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 2 May 2017 01:09:44 +0000 (-0700)
Subject: f2fs: flush dirty nats periodically
X-Git-Tag: v4.12-rc1~71^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1c0f4bf5c3df13da4090a602c377f7d7a3708ce8;p=thirdparty%2Fkernel%2Flinux.git

f2fs: flush dirty nats periodically

This patch flushes dirty nats in order to acquire available nids by writing
checkpoint. Otherwise, we can have no chance to get freed nids.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a32268eeb4727..6e1c8cf757491 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -419,7 +419,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
 	else
 		build_free_nids(sbi, false, false);
 
-	if (!is_idle(sbi))
+	if (!is_idle(sbi) && !excess_dirty_nats(sbi))
 		return;
 
 	/* checkpoint is the only way to shrink partial cached entries */