From 7f8e05f60c87646e12c761fef61dd71a7e67112e Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 3 Apr 2009 16:42:45 +0100 Subject: NFS: Store pages from an NFS inode into a local cache Store pages from an NFS inode into the cache data storage object associated with that inode. Signed-off-by: David Howells Acked-by: Steve Dickson Acked-by: Trond Myklebust Acked-by: Al Viro Tested-by: Daire Byrne --- fs/nfs/fscache.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'fs/nfs/fscache.h') diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h index 099349c171ca..1ec3ebb0efcd 100644 --- a/fs/nfs/fscache.h +++ b/fs/nfs/fscache.h @@ -91,6 +91,7 @@ extern int __nfs_readpage_from_fscache(struct nfs_open_context *, extern int __nfs_readpages_from_fscache(struct nfs_open_context *, struct inode *, struct address_space *, struct list_head *, unsigned *); +extern void __nfs_readpage_to_fscache(struct inode *, struct page *, int); /* * wait for a page to complete writing to the cache @@ -140,6 +141,19 @@ static inline int nfs_readpages_from_fscache(struct nfs_open_context *ctx, return -ENOBUFS; } +/* + * Store a page newly fetched from the server in an inode data storage object + * in the cache. + */ +static inline void nfs_readpage_to_fscache(struct inode *inode, + struct page *page, + int sync) +{ + if (PageFsCache(page)) + __nfs_readpage_to_fscache(inode, page, sync); +} + + #else /* CONFIG_NFS_FSCACHE */ static inline int nfs_fscache_register(void) { return 0; } static inline void nfs_fscache_unregister(void) {} @@ -184,6 +198,8 @@ static inline int nfs_readpages_from_fscache(struct nfs_open_context *ctx, { return -ENOBUFS; } +static inline void nfs_readpage_to_fscache(struct inode *inode, + struct page *page, int sync) {} #endif /* CONFIG_NFS_FSCACHE */ #endif /* _NFS_FSCACHE_H */ -- cgit v1.2.3-70-g09d2