Commit bbafffd2 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4.1: Exchange ID must use GFP_NOFS allocation mode 



Exchange ID can be called in a lease reclaim situation, so it
will deadlock if it then tries to write out dirty NFS pages.

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent a9e64442

fs/nfs/nfs4proc.c

+3 −3
Original line number Diff line number Diff line
@@ -5192,20 +5192,20 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) 
				clp->cl_rpcclient->cl_auth->au_flavor);



	res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),

					GFP_KERNEL);

					GFP_NOFS);

	if (unlikely(res.server_owner == NULL)) {

		status = -ENOMEM;

		goto out;

	}



	res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),

					GFP_KERNEL);

					GFP_NOFS);

	if (unlikely(res.server_scope == NULL)) {

		status = -ENOMEM;

		goto out_server_owner;

	}



	res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_KERNEL);

	res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);

	if (unlikely(res.impl_id == NULL)) {

		status = -ENOMEM;

		goto out_server_scope;