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authorAndy Adamson <andros@netapp.com>2012-05-23 05:02:35 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-24 16:15:48 -0400
commit82be417aa37c05116e310b0f2171187ea389f89b (patch)
tree901d8fc702d6aef425c4b17cdf62e4fdd8c81833 /fs/nfs/pnfs.h
parent88034c3d88c2c48b215f2cc5eb22e564aa817f9c (diff)
NFSv4.1 cache mdsthreshold values on OPEN
Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 7980756b2f5..29fd23c0efd 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -227,6 +227,7 @@ int pnfs_read_done_resend_to_mds(struct inode *inode, struct list_head *head,
const struct nfs_pgio_completion_ops *compl_ops);
int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head,
const struct nfs_pgio_completion_ops *compl_ops);
+struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
/* nfs4_deviceid_flags */
enum {
@@ -360,6 +361,14 @@ static inline int pnfs_return_layout(struct inode *ino)
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return (dst && src && src->bm != 0 &&
+ nfss->pnfs_curr_ld->id == src->l_type);
+}
+
#ifdef NFS_DEBUG
void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
#else
@@ -485,6 +494,18 @@ static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
return 0;
}
+static inline bool
+pnfs_use_threshold(struct nfs4_threshold **dst, struct nfs4_threshold *src,
+ struct nfs_server *nfss)
+{
+ return false;
+}
+
+static inline struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
+{
+ return NULL;
+}
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */