[patch 52/96] net/netfilter/x_tables.c: use kvmalloc() in xt_alloc_table_info()

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From: Michal Hocko <mhocko@xxxxxxxx>
Subject: net/netfilter/x_tables.c: use kvmalloc() in xt_alloc_table_info()

xt_alloc_table_info() basically opencodes kvmalloc() so use the library
function instead.

Link: http://lkml.kernel.org/r/20170531155145.17111-4-mhocko@xxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Cc: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx>
Cc: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 net/netfilter/x_tables.c |   12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff -puN net/netfilter/x_tables.c~netfilter-use-kvmalloc-xt_alloc_table_info net/netfilter/x_tables.c
--- a/net/netfilter/x_tables.c~netfilter-use-kvmalloc-xt_alloc_table_info
+++ a/net/netfilter/x_tables.c
@@ -1003,14 +1003,10 @@ struct xt_table_info *xt_alloc_table_inf
 	if ((SMP_ALIGN(size) >> PAGE_SHIFT) + 2 > totalram_pages)
 		return NULL;
 
-	if (sz <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER))
-		info = kmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY);
-	if (!info) {
-		info = __vmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
-				 PAGE_KERNEL);
-		if (!info)
-			return NULL;
-	}
+	info = kvmalloc(sz, GFP_KERNEL);
+	if (!info)
+		return NULL;
+
 	memset(info, 0, sizeof(*info));
 	info->size = size;
 	return info;
_
--
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