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nfs41 write sequence setup done support 

Separate write calls from nfs41: sequence setup/done support

Implement the write rpc_call_prepare method for
asynchronuos nfs rpcs, call nfs41_setup_sequence from
respective rpc_call_validate_args methods.

Call nfs4_sequence_done from respective rpc_call_done methods.

Note that we need to pass a pointer to the nfs_server in calls data
for passing on to nfs4_sequence_done.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[pnfs: client data server write validate and release]
Signed-off-by: Andy Adamson <andros@umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[move the nfs4_sequence_free_slot call in nfs_readpage_retry from]
[nfs41: separate free slot from sequence done
Signed-off-by: Andy Adamson <andros@umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: Support sessions with O_DIRECT.]
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: nfs4_sequence_free_slot use nfs_client for data server]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson 2009-04-01 09:22:26 -04:00 committed by Benny Halevy
parent f11c88af26
commit def6ed7ef4
4 changed files with 32 additions and 0 deletions
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3
fs/nfs/direct.c
View File

@ -676,6 +676,9 @@ out_unlock:
}
static const struct rpc_call_ops nfs_write_direct_ops = {
#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_write_result,
.rpc_release = nfs_direct_write_release,
};

3
fs/nfs/internal.h
View File

@ -209,6 +209,9 @@ extern int nfs4_path_walk(struct nfs_server *server,
/* read.c */
extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
/* write.c */
extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
/* nfs4proc.c */
extern int _nfs4_call_sync(struct nfs_server *server,
struct rpc_message *msg,

4
fs/nfs/nfs4proc.c
View File

@ -2890,6 +2890,10 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
/* slot is freed in nfs_writeback_done */
nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
task->tk_status);
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
rpc_restart_call(task);
return -EAGAIN;

22
fs/nfs/write.c
View File

@ -25,6 +25,7 @@
#include "delegation.h"
#include "internal.h"
#include "iostat.h"
#include "nfs4_fs.h"
#define NFSDBG_FACILITY NFSDBG_PAGECACHE
@ -1050,7 +1051,23 @@ out:
nfs_writedata_release(calldata);
}
#if defined(CONFIG_NFS_V4_1)
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_client *clp = (NFS_SERVER(data->inode))->nfs_client;
if (nfs4_setup_sequence(clp, &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
}
#endif /* CONFIG_NFS_V4_1 */
static const struct rpc_call_ops nfs_write_partial_ops = {
#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_partial,
.rpc_release = nfs_writeback_release_partial,
};
@ -1113,6 +1130,9 @@ remove_request:
}
static const struct rpc_call_ops nfs_write_full_ops = {
#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_full,
.rpc_release = nfs_writeback_release_full,
};
@ -1195,6 +1215,8 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
/* Can't do anything about it except throw an error. */
task->tk_status = -EIO;
}
nfs4_sequence_free_slot(NFS_SERVER(data->inode)->nfs_client,
&data->res.seq_res);
return 0;
}