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NFS: Use local disk inode cache

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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>
This commit is contained in:
David Howells
2009-04-03 16:42:43 +01:00
parent 10329a5d48
commit ef79c097bb
4 changed files with 191 additions and 0 deletions
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10
include/linux/nfs_fs.h
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@@ -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;