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: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e8988c000e7f..f8817e81096e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -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;