netfilter: nf_conntrack: allow nf_ct_alloc_hashtable() to get highmem pages

commit 6b1686a71e3158d3c5f125260effce171cc7852b upstream.

commit ea781f197d6a8 (use SLAB_DESTROY_BY_RCU and get rid of call_rcu())
did a mistake in __vmalloc() call in nf_ct_alloc_hashtable().

I forgot to add __GFP_HIGHMEM, so pages were taken from LOWMEM only.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 4d79e3c1616ce57ff2335487f2492afea9ebead2..65bcd7ec95b03d2ffbdb051f1951305997f1986c 100644 (file)
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1178,7 +1178,8 @@ void *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced, int nulls)
        if (!hash) {
                *vmalloced = 1;
                printk(KERN_WARNING "nf_conntrack: falling back to vmalloc.\n");
-               hash = __vmalloc(sz, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
+               hash = __vmalloc(sz, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
+                                PAGE_KERNEL);
        }
 
        if (hash && nulls)