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| author | Andy Adamson <andros@netapp.com> | 2011-03-03 15:13:45 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 15:38:44 -0500 |
| commit | 0382b74409c6b9ef12c952b50bb44f557a361a43 (patch) | |
| tree | 0eebc04006a3b70fb6605c42ee89cdc0ccd8b1cf /fs/nfs/pnfs.h | |
| parent | 44b83799a922a153957c65ccfc985a8c902958c8 (diff) | |
| download | lwn-0382b74409c6b9ef12c952b50bb44f557a361a43.tar.gz lwn-0382b74409c6b9ef12c952b50bb44f557a361a43.zip | |
NFSv4.1: implement generic pnfs layer write switch
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Mike Sager <sager@netapp.com>
Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Fred Isaman <iisaman@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 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 1d4e6317fa95..6380b9405bcd 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -79,6 +79,7 @@ struct pnfs_layoutdriver_type { * I/O, else return PNFS_NOT_ATTEMPTED to fall back to normal NFS */ enum pnfs_try_status (*read_pagelist) (struct nfs_read_data *nfs_data); + enum pnfs_try_status (*write_pagelist) (struct nfs_write_data *nfs_data, int how); }; struct pnfs_layout_hdr { @@ -120,6 +121,8 @@ pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, enum pnfs_iomode access_type); void set_pnfs_layoutdriver(struct nfs_server *, u32 id); void unset_pnfs_layoutdriver(struct nfs_server *); +enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *, + const struct rpc_call_ops *, int); enum pnfs_try_status pnfs_try_to_read_data(struct nfs_read_data *, const struct rpc_call_ops *); void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *); @@ -200,6 +203,13 @@ pnfs_try_to_read_data(struct nfs_read_data *data, return PNFS_NOT_ATTEMPTED; } +static inline enum pnfs_try_status +pnfs_try_to_write_data(struct nfs_write_data *data, + const struct rpc_call_ops *call_ops, int how) +{ + return PNFS_NOT_ATTEMPTED; +} + static inline bool pnfs_roc(struct inode *ino) { |