linux-kernel - [PATCH 3.4 094/172] fuse: set stolen page uptodate

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Date:	Tue, 16 Jun 2015 16:35:48 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Miklos Szeredi <mszeredi@...e.cz>,
	Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 094/172] fuse: set stolen page uptodate

From: Miklos Szeredi <mszeredi@...e.cz>

3.4.108-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit aa991b3b267e24f578bac7b09cc57579b660304b upstream.

Regular pipe buffers' ->steal method (generic_pipe_buf_steal()) doesn't set
PG_uptodate.

Don't warn on this condition, just set the uptodate flag.

Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 fs/fuse/dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 8b3fd48..0949b83 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -717,8 +717,8 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 
 	newpage = buf->page;
 
-	if (WARN_ON(!PageUptodate(newpage)))
-		return -EIO;
+	if (!PageUptodate(newpage))
+		SetPageUptodate(newpage);
 
 	ClearPageMappedToDisk(newpage);
 
-- 
1.9.1

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