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authorDavid Howells <dhowells@redhat.com>2009-04-03 16:42:43 +0100
committerDavid Howells <dhowells@redhat.com>2009-04-03 16:42:43 +0100
commitef79c097bbe9724e13937271b3457df560e00370 (patch)
treea8671781cc0c9deb85fa76a8b4211c5e693b4343 /include/linux/nfs_fs.h
parent10329a5d48f5abc14a37d30b706e330f8598297a (diff)
downloadlwn-ef79c097bbe9724e13937271b3457df560e00370.tar.gz
lwn-ef79c097bbe9724e13937271b3457df560e00370.zip
NFS: Use local disk inode cache
Bind data storage objects in the local cache to NFS inodes. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
-rw-r--r--include/linux/nfs_fs.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index fd3e7f9c6fd3..8a99e79d5ea5 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -185,6 +185,9 @@ struct nfs_inode {
fmode_t delegation_state;
struct rw_semaphore rwsem;
#endif /* CONFIG_NFS_V4*/
+#ifdef CONFIG_NFS_FSCACHE
+ struct fscache_cookie *fscache;
+#endif
struct inode vfs_inode;
};
@@ -207,6 +210,8 @@ struct nfs_inode {
#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */
#define NFS_INO_MOUNTPOINT (3) /* inode is remote mountpoint */
#define NFS_INO_FLUSHING (4) /* inode is flushing out data */
+#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */
+#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */
static inline struct nfs_inode *NFS_I(const struct inode *inode)
{
@@ -260,6 +265,11 @@ static inline int NFS_STALE(const struct inode *inode)
return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
}
+static inline int NFS_FSCACHE(const struct inode *inode)
+{
+ return test_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
+}
+
static inline __u64 NFS_FILEID(const struct inode *inode)
{
return NFS_I(inode)->fileid;