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| author | Andy Adamson <andros@netapp.com> | 2012-05-23 05:02:35 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-05-24 16:15:48 -0400 |
| commit | 82be417aa37c05116e310b0f2171187ea389f89b (patch) | |
| tree | 901d8fc702d6aef425c4b17cdf62e4fdd8c81833 /fs/nfs/pnfs.h | |
| parent | 88034c3d88c2c48b215f2cc5eb22e564aa817f9c (diff) | |
| download | lwn-82be417aa37c05116e310b0f2171187ea389f89b.tar.gz lwn-82be417aa37c05116e310b0f2171187ea389f89b.zip | |
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.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 7980756b2f57..29fd23c0efdc 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 */ |