diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-03 09:55:24 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-06 14:58:46 -0500 |
| commit | 58d9714a44a79bba9b414da3ffbf3c753dc5915f (patch) | |
| tree | 623141f0a40a470c0c81c2edcd8c45c6b0daf4f9 /fs/nfs/nfs4proc.c | |
| parent | 5043e900f5404c01864fbeb5826aa7de3981bbc1 (diff) | |
| download | linux-58d9714a44a79bba9b414da3ffbf3c753dc5915f.tar.bz2 | |
NFSv4: Send RENEW requests to the server only when we're holding state
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4proc.c')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 46623ac3ce86..cc33a1c32cfb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -63,6 +63,7 @@ static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinf static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *); static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry); static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception); +static int nfs4_wait_clnt_recover(struct rpc_clnt *clnt, struct nfs4_client *clp); extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus); extern struct rpc_procinfo nfs4_procedures[]; @@ -765,6 +766,15 @@ out: return -EACCES; } +int nfs4_recover_expired_lease(struct nfs_server *server) +{ + struct nfs4_client *clp = server->nfs4_state; + + if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) + nfs4_schedule_state_recovery(clp); + return nfs4_wait_clnt_recover(server->client, clp); +} + /* * OPEN_EXPIRED: * reclaim state on the server after a network partition. @@ -840,6 +850,9 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred int open_flags = flags & (FMODE_READ|FMODE_WRITE); int err; + err = nfs4_recover_expired_lease(server); + if (err != 0) + return err; /* Protect against reboot recovery - NOTE ORDER! */ down_read(&clp->cl_sem); /* Protect against delegation recall */ @@ -921,12 +934,16 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st int status; /* Protect against reboot recovery conflicts */ - down_read(&clp->cl_sem); status = -ENOMEM; if (!(sp = nfs4_get_state_owner(server, cred))) { dprintk("nfs4_do_open: nfs4_get_state_owner failed!\n"); goto out_err; } + status = nfs4_recover_expired_lease(server); + if (status != 0) + goto out_err; + down_read(&clp->cl_sem); + status = -ENOMEM; opendata = nfs4_opendata_alloc(dentry, sp, flags, sattr); if (opendata == NULL) goto err_put_state_owner; @@ -2897,6 +2914,7 @@ nfs4_proc_setclientid_confirm(struct nfs4_client *clp) spin_lock(&clp->cl_lock); clp->cl_lease_time = fsinfo.lease_time * HZ; clp->cl_last_renewal = now; + clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); spin_unlock(&clp->cl_lock); } return status; |