From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 12 Apr 2016 21:11:03 +0000 (-0700)
Subject: f2fs: don't invalidate atomic page if successful
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=63c52d7878903a014fa4c9075afd051b1e77597b;p=linux-beck.git

f2fs: don't invalidate atomic page if successful

If we committed atomic write successfully, we don't need to invalidate pages.

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

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 299c784f5b61..770cdc95120f 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -223,9 +223,10 @@ static int __revoke_inmem_pages(struct inode *inode,
 			f2fs_put_dnode(&dn);
 		}
 next:
-		ClearPageUptodate(page);
+		/* we don't need to invalidate this in the sccessful status */
+		if (drop || recover)
+			ClearPageUptodate(page);
 		set_page_private(page, 0);
-		ClearPageUptodate(page);
 		f2fs_put_page(page, 1);
 
 		list_del(&cur->list);