From: Michal Hocko <mhocko@novell.com>
Subject: Don't fail allocations for the slot table when mounting an NFS filesystem
Patch-mainline: no
References: bnc#519820

When the *_slot_table_entries exceeds 111, the slot_table_size
exceeds 32K and an order-4 allocation is forced.  This does not
retry nearly as much as order-3 so failure is more likely.
But mount and autofs in particular doesn't cope well with failure.
So force __GFP_REPEAT - the assumption is that people will only
set the slot_table_size sysctl large on a machine with plenty
of memory, so this should not block indefinitely.

Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: Neil Brown <neilb@suse.de>

---
 net/sunrpc/xprtsock.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2295,7 +2295,7 @@ static struct rpc_xprt *xs_setup_xprt(st
 	xprt = &new->xprt;
 
 	xprt->max_reqs = slot_table_size;
-	xprt->slot = kcalloc(xprt->max_reqs, sizeof(struct rpc_rqst), GFP_KERNEL);
+	xprt->slot = kcalloc(xprt->max_reqs, sizeof(struct rpc_rqst), GFP_KERNEL | __GFP_REPEAT);
 	if (xprt->slot == NULL) {
 		kfree(xprt);
 		dprintk("RPC:       xs_setup_xprt: couldn't allocate slot "
