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NFSv4: Ensure DELEGRETURN returns attributes

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Upon return of a write delegation, the server will almost always bump the
 change attribute. Ensure that we pick up that change so that we don't
 invalidate our data cache unnecessarily.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2006-01-03 09:55:38 +01:00
parent beb2a5ec38
commit fa178f29c0
4 changed files with 41 additions and 17 deletions
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17
fs/nfs/nfs4proc.c
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@ -2920,11 +2920,12 @@ nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
struct nfs4_delegreturndata {
struct nfs4_delegreturnargs args;
struct nfs4_delegreturnres res;
struct nfs_fh fh;
nfs4_stateid stateid;
struct rpc_cred *cred;
unsigned long timestamp;
const struct nfs_server *server;
struct nfs_fattr fattr;
int rpc_status;
};
@ -2934,8 +2935,10 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *calldata)
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DELEGRETURN],
.rpc_argp = &data->args,
.rpc_resp = &data->res,
.rpc_cred = data->cred,
};
nfs_fattr_init(data->res.fattr);
rpc_call_setup(task, &msg, 0);
}
@ -2944,7 +2947,7 @@ 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);
renew_lease(data->res.server, data->timestamp);
}
static void nfs4_delegreturn_release(void *calldata)
@ -2964,6 +2967,7 @@ const static struct rpc_call_ops nfs4_delegreturn_ops = {
static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid)
{
struct nfs4_delegreturndata *data;
struct nfs_server *server = NFS_SERVER(inode);
struct rpc_task *task;
int status;
@ -2972,11 +2976,13 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return -ENOMEM;
data->args.fhandle = &data->fh;
data->args.stateid = &data->stateid;
data->args.bitmask = server->attr_bitmask;
nfs_copy_fh(&data->fh, NFS_FH(inode));
memcpy(&data->stateid, stateid, sizeof(data->stateid));
data->res.fattr = &data->fattr;
data->res.server = server;
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);
@ -2985,8 +2991,11 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return PTR_ERR(task);
}
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
if (status == 0) {
status = data->rpc_status;
if (status == 0)
nfs_post_op_update_inode(inode, &data->fattr);
}
rpc_release_task(task);
return status;
}