From 3f42bc4beadef554fd0d4e6408e9142da268613b Mon Sep 17 00:00:00 2001
From: Li Wang <liwang@ubuntukylin.com>
Date: Thu, 19 Dec 2013 06:03:48 -0800
Subject: [PATCH] ceph fscache: Introduce a routine for uncaching single no
data page from fscache
Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Reviewed-by: Milosz Tanski <milosz@adfin.com>
---
fs/ceph/cache.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/fs/ceph/cache.h b/fs/ceph/cache.h
index ba949408a336e..da95f61b7a09e 100644
--- a/fs/ceph/cache.h
+++ b/fs/ceph/cache.h
@@ -67,6 +67,14 @@ static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
return fscache_maybe_release_page(ci->fscache, page, gfp);
}
+static inline void ceph_fscache_readpage_cancel(struct inode *inode,
+ struct page *page)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ if (fscache_cookie_valid(ci->fscache) && PageFsCache(page))
+ __fscache_uncache_page(ci->fscache, page);
+}
+
static inline void ceph_fscache_readpages_cancel(struct inode *inode,
struct list_head *pages)
{
@@ -145,6 +153,11 @@ static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
return 1;
}
+static inline void ceph_fscache_readpage_cancel(struct inode *inode,
+ struct page *page)
+{
+}
+
static inline void ceph_fscache_readpages_cancel(struct inode *inode,
struct list_head *pages)
{
--
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