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ceph fscache: Introduce a routine for uncaching single no data page from fscache

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Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Reviewed-by: Milosz Tanski <milosz@adfin.com>
This commit is contained in:
Li Wang 2013-12-19 06:03:48 -08:00 committed by Ilya Dryomov
parent 7221fe4c2e
commit 3f42bc4bea
1 changed files with 13 additions and 0 deletions
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13
fs/ceph/cache.h
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@ -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); 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, static inline void ceph_fscache_readpages_cancel(struct inode *inode,
struct list_head *pages) struct list_head *pages)
{ {
@ -145,6 +153,11 @@ static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp)
return 1; 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, static inline void ceph_fscache_readpages_cancel(struct inode *inode,
struct list_head *pages) struct list_head *pages)
{ {