linux-kernel - [PATCH 4/7] Ceph: Uncaching no-data page in readpage()

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Message-Id: <1328cc859d1b2d40786fc3aa634a36764b286e70.1384183054.git.liwang@ubuntukylin.com>
Date:	Tue, 12 Nov 2013 09:25:37 +0800
From:	Li Wang <liwang@...ntukylin.com>
To:	linux-kernel@...r.kernel.org
Cc:	ceph-devel@...r.kernel.org, Sage Weil <sage@...tank.com>,
	linux-fsdevel@...r.kernel.org, Steve French <sfrench@...ba.org>,
	linux-cifs@...r.kernel.org, Milosz Tanski <milosz@...in.com>,
	David Howells <dhowells@...hat.com>, linux-cachefs@...hat.com,
	Li Wang <liwang@...ntukylin.com>
Subject: [PATCH 4/7] Ceph: Uncaching no-data page in readpage()

Currently, if one page allocated into fscache in readpage(), however, with
no-data read, it is not uncached. This patch fixes this.

Signed-off-by: Li Wang <liwang@...ntukylin.com>
---
 fs/ceph/addr.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6df8bd4..be5f4b6 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -209,6 +209,7 @@ static int readpage_nounlock(struct file *filp, struct page *page)
 		err = 0;
 	if (err < 0) {
 		SetPageError(page);
+		ceph_fscache_readpage_cancel(inode, page);
 		goto out;
 	} else if (err < PAGE_CACHE_SIZE) {
 		/* zero fill remainder of page */
-- 
1.7.9.5

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