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nfs41: lease renewal

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Send a NFSv4.1 SEQUENCE op rather than RENEW that was deprecated in
minorversion 1.
Use the nfs_client minorversion to select reboot_recover/
network_partition_recovery/state_renewal ops.

Note: we use reclaimer to create the nfs41 session before there are any
cl_superblocks for the nfs_client.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: check for session not minorversion]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[revamped patch for new nfs4_state_manager design]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: obliterate nfs4_state_recovery_ops.renew_lease method]
    moved to nfs4_state_maintenance_ops
[also undid per-minorversion nfs4_state_recovery_ops here]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Benny Halevy 2009-04-01 09:22:44 -04:00
parent b069d94af7
commit 29fba38b79
3 changed files with 33 additions and 1 deletions
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6
fs/nfs/nfs4_fs.h
View file

@ -180,6 +180,10 @@ struct nfs4_state_recovery_ops {
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
};
struct nfs4_state_maintenance_ops {
int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *);
};
extern const struct dentry_operations nfs4_dentry_operations;
extern const struct inode_operations nfs4_dir_inode_operations;
@ -220,6 +224,8 @@ static inline int nfs4_setup_sequence(struct nfs_client *clp,
}
#endif /* CONFIG_NFS_V4_1 */
extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
extern const u32 nfs4_pathconf_bitmap[2];

24
fs/nfs/nfs4proc.c
View file

@ -3016,6 +3016,9 @@ static void nfs4_renew_done(struct rpc_task *task, void *data)
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
dprintk("%s calling put_rpccred on rpc_cred %p\n", __func__,
task->tk_msg.rpc_cred);
put_rpccred(task->tk_msg.rpc_cred);
}
static const struct rpc_call_ops nfs4_renew_ops = {
@ -4790,6 +4793,27 @@ struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops = {
.recover_lock = nfs4_lock_expired,
};
struct nfs4_state_maintenance_ops nfs40_state_renewal_ops = {
.sched_state_renewal = nfs4_proc_async_renew,
};
#if defined(CONFIG_NFS_V4_1)
struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
.sched_state_renewal = nfs41_proc_async_sequence,
};
#endif
/*
* Per minor version reboot and network partition recovery ops
*/
struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
&nfs40_state_renewal_ops,
#if defined(CONFIG_NFS_V4_1)
&nfs41_state_renewal_ops,
#endif
};
static const struct inode_operations nfs4_file_inode_operations = {
.permission = nfs_permission,
.getattr = nfs_getattr,

4
fs/nfs/nfs4renewd.c
View file

@ -59,12 +59,14 @@
void
nfs4_renew_state(struct work_struct *work)
{
struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
long lease, timeout;
unsigned long last, now;
ops = nfs4_state_renewal_ops[clp->cl_minorversion];
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
@ -86,7 +88,7 @@ nfs4_renew_state(struct work_struct *work)
nfs_expire_all_delegations(clp);
} else {
/* Queue an asynchronous RENEW. */
nfs4_proc_async_renew(clp, cred);
ops->sched_state_renewal(clp, cred);
put_rpccred(cred);
}
timeout = (2 * lease) / 3;