NFS/pnfs: Don't use RPC_TASK_CRED_NOREF with pnfs

When we're doing pnfs then the credential being used for the RPC call
is not necessarily the same as the one used in the open context, so
don't use RPC_TASK_CRED_NOREF.

Fixes: 6129650 ("NFSv4: Avoid referencing the cred unnecessarily during NFSv4 I/O")
Signed-off-by: Trond Myklebust <[email protected]>

Author: Trond Myklebust

fs/nfs/pagelist.c

@@ -752,7 +752,7 @@ int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
 		.callback_ops = call_ops,
 		.callback_data = hdr,
 		.workqueue = nfsiod_workqueue,
-		.flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF | flags,
+		.flags = RPC_TASK_ASYNC | flags,
 	};
 
 	hdr->rw_ops->rw_initiate(hdr, &msg, rpc_ops, &task_setup_data, how);
@@ -950,7 +950,8 @@ static int nfs_generic_pg_pgios(struct nfs_pageio_descriptor *desc)
 					hdr->cred,
 					NFS_PROTO(hdr->inode),
 					desc->pg_rpc_callops,
-					desc->pg_ioflags, 0);
+					desc->pg_ioflags,
+					RPC_TASK_CRED_NOREF);
 	return ret;
 }
 

fs/nfs/pnfs_nfs.c

@@ -536,7 +536,8 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
 			nfs_init_commit(data, NULL, NULL, cinfo);
 			nfs_initiate_commit(NFS_CLIENT(inode), data,
 					    NFS_PROTO(data->inode),
-					    data->mds_ops, how, 0);
+					    data->mds_ops, how,
+					    RPC_TASK_CRED_NOREF);
 		} else {
 			nfs_init_commit(data, NULL, data->lseg, cinfo);
 			initiate_commit(data, how);

fs/nfs/write.c

@@ -1695,7 +1695,7 @@ int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data,
 		.callback_ops = call_ops,
 		.callback_data = data,
 		.workqueue = nfsiod_workqueue,
-		.flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF | flags,
+		.flags = RPC_TASK_ASYNC | flags,
 		.priority = priority,
 	};
 	/* Set up the initial task struct.  */
@@ -1813,7 +1813,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
 	nfs_init_commit(data, head, NULL, cinfo);
 	atomic_inc(&cinfo->mds->rpcs_out);
 	return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
-				   data->mds_ops, how, 0);
+				   data->mds_ops, how, RPC_TASK_CRED_NOREF);
 }
 
 /*