From 26e976a884be9aa08f8ff906372f25f68df0d948 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 3 Jan 2006 09:55:21 +0100 Subject: [PATCH] NFSv4: OPEN/LOCK/LOCKU/CLOSE will automatically renew the NFSv4 lease Cut down on the number of unnecessary RENEW requests on the wire. Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 34 +++++++++++++++++++++++++++++++--- 1 file changed, 31 insertions(+), 3 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f060e65..76d7d02 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -174,8 +174,7 @@ static void nfs4_setup_readdir(u64 cookie, u32 *verifier, struct dentry *dentry, kunmap_atomic(start, KM_USER0); } -static void -renew_lease(struct nfs_server *server, unsigned long timestamp) +static void renew_lease(const struct nfs_server *server, unsigned long timestamp) { struct nfs4_client *clp = server->nfs4_state; spin_lock(&clp->cl_lock); @@ -207,6 +206,7 @@ struct nfs4_opendata { struct dentry *dir; struct nfs4_state_owner *owner; struct iattr attrs; + unsigned long timestamp; int rpc_status; int cancelled; }; @@ -548,6 +548,7 @@ static void nfs4_open_confirm_prepare(struct rpc_task *task, void *calldata) .rpc_resp = &data->c_res, .rpc_cred = data->owner->so_cred, }; + data->timestamp = jiffies; rpc_call_setup(task, &msg, 0); } @@ -558,9 +559,11 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata) data->rpc_status = task->tk_status; if (RPC_ASSASSINATED(task)) return; - if (data->rpc_status == 0) + if (data->rpc_status == 0) { memcpy(data->o_res.stateid.data, data->c_res.stateid.data, sizeof(data->o_res.stateid.data)); + renew_lease(data->o_res.server, data->timestamp); + } nfs_increment_open_seqid(data->rpc_status, data->c_arg.seqid); nfs_confirm_seqid(&data->owner->so_seqid, data->rpc_status); } @@ -633,6 +636,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) data->o_arg.clientid = sp->so_client->cl_clientid; if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR]; + data->timestamp = jiffies; rpc_call_setup(task, &msg, 0); } @@ -656,6 +660,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata) default: data->rpc_status = -ENOTDIR; } + renew_lease(data->o_res.server, data->timestamp); } nfs_increment_open_seqid(data->rpc_status, data->o_arg.seqid); } @@ -1014,6 +1019,7 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr, .rpc_argp = &arg, .rpc_resp = &res, }; + unsigned long timestamp = jiffies; int status; nfs_fattr_init(fattr); @@ -1025,6 +1031,8 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr, memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid)); status = rpc_call_sync(server->client, &msg, 0); + if (status == 0 && state != NULL) + renew_lease(server, timestamp); return status; } @@ -1049,6 +1057,7 @@ struct nfs4_closedata { struct nfs_closeargs arg; struct nfs_closeres res; struct nfs_fattr fattr; + unsigned long timestamp; }; static void nfs4_free_closedata(void *data) @@ -1078,6 +1087,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data) case 0: memcpy(&state->stateid, &calldata->res.stateid, sizeof(state->stateid)); + renew_lease(server, calldata->timestamp); break; case -NFS4ERR_STALE_STATEID: case -NFS4ERR_EXPIRED: @@ -1130,6 +1140,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data) if (mode != 0) msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE]; calldata->arg.open_flags = mode; + calldata->timestamp = jiffies; rpc_call_setup(task, &msg, 0); } @@ -1694,11 +1705,13 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata) wdata->args.bitmask = server->attr_bitmask; wdata->res.server = server; + wdata->timestamp = jiffies; nfs_fattr_init(fattr); status = rpc_call_sync(server->client, &msg, rpcflags); dprintk("NFS reply write: %d\n", status); if (status < 0) return status; + renew_lease(server, wdata->timestamp); nfs_post_op_update_inode(inode, fattr); return wdata->res.count; } @@ -1733,8 +1746,11 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata) cdata->args.bitmask = server->attr_bitmask; cdata->res.server = server; + cdata->timestamp = jiffies; nfs_fattr_init(fattr); status = rpc_call_sync(server->client, &msg, 0); + if (status >= 0) + renew_lease(server, cdata->timestamp); dprintk("NFS reply commit: %d\n", status); if (status >= 0) nfs_post_op_update_inode(inode, fattr); @@ -2890,6 +2906,8 @@ struct nfs4_delegreturndata { struct nfs_fh fh; nfs4_stateid stateid; struct rpc_cred *cred; + unsigned long timestamp; + const struct nfs_server *server; int rpc_status; }; @@ -2908,6 +2926,8 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) { struct nfs4_delegreturndata *data = calldata; data->rpc_status = task->tk_status; + if (data->rpc_status == 0) + renew_lease(data->server, data->timestamp); } static void nfs4_delegreturn_release(void *calldata) @@ -2938,6 +2958,8 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co nfs_copy_fh(&data->fh, NFS_FH(inode)); memcpy(&data->stateid, stateid, sizeof(data->stateid)); data->cred = get_rpccred(cred); + data->timestamp = jiffies; + data->server = NFS_SERVER(inode); data->rpc_status = 0; task = rpc_run_task(NFS_CLIENT(inode), RPC_TASK_ASYNC, &nfs4_delegreturn_ops, data); @@ -3067,6 +3089,7 @@ struct nfs4_unlockdata { struct nfs_open_context *ctx; struct file_lock fl; const struct nfs_server *server; + unsigned long timestamp; }; static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl, @@ -3114,6 +3137,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data) memcpy(calldata->lsp->ls_stateid.data, calldata->res.stateid.data, sizeof(calldata->lsp->ls_stateid.data)); + renew_lease(calldata->server, calldata->timestamp); break; case -NFS4ERR_STALE_STATEID: case -NFS4ERR_EXPIRED: @@ -3143,6 +3167,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data) task->tk_action = NULL; return; } + calldata->timestamp = jiffies; rpc_call_setup(task, &msg, 0); } @@ -3214,6 +3239,7 @@ struct nfs4_lockdata { struct nfs4_lock_state *lsp; struct nfs_open_context *ctx; struct file_lock fl; + unsigned long timestamp; int rpc_status; int cancelled; }; @@ -3273,6 +3299,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata) data->arg.open_stateid = &state->stateid; data->arg.new_lock_owner = 1; } + data->timestamp = jiffies; rpc_call_setup(task, &msg, 0); out: dprintk("%s: done!, ret = %d\n", __FUNCTION__, data->rpc_status); @@ -3298,6 +3325,7 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) memcpy(data->lsp->ls_stateid.data, data->res.stateid.data, sizeof(data->lsp->ls_stateid.data)); data->lsp->ls_flags |= NFS_LOCK_INITIALIZED; + renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp); } nfs_increment_lock_seqid(data->rpc_status, data->arg.lock_seqid); out: -- 2.7.4