netdev - [PATCH net-next v10 04/10] slab: introduce kvmalloc_array_node() and kvcalloc

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Date: Thu, 18 Apr 2024 13:36:10 +0200
From: Alexander Lobakin <aleksander.lobakin@...el.com>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Alexander Lobakin <aleksander.lobakin@...el.com>,
	Alexander Duyck <alexanderduyck@...com>,
	Yunsheng Lin <linyunsheng@...wei.com>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	Ilias Apalodimas <ilias.apalodimas@...aro.org>,
	Christoph Lameter <cl@...ux.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	nex.sw.ncis.osdt.itp.upstreaming@...el.com,
	netdev@...r.kernel.org,
	intel-wired-lan@...ts.osuosl.org,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next v10 04/10] slab: introduce kvmalloc_array_node() and kvcalloc_node()

Add NUMA-aware counterparts for kvmalloc_array() and kvcalloc() to be
able to flexibly allocate arrays for a particular node.
Rewrite kvmalloc_array() to kvmalloc_array_node(NUMA_NO_NODE) call.

Acked-by: Vlastimil Babka <vbabka@...e.cz>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@...el.com>
---
 include/linux/slab.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/include/linux/slab.h b/include/linux/slab.h
index e53cbfa18325..d1d1fa5e7983 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -774,14 +774,27 @@ static inline __alloc_size(1) void *kvzalloc(size_t size, gfp_t flags)
 	return kvmalloc(size, flags | __GFP_ZERO);
 }
 
-static inline __alloc_size(1, 2) void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
+static inline __alloc_size(1, 2) void *
+kvmalloc_array_node(size_t n, size_t size, gfp_t flags, int node)
 {
 	size_t bytes;
 
 	if (unlikely(check_mul_overflow(n, size, &bytes)))
 		return NULL;
 
-	return kvmalloc(bytes, flags);
+	return kvmalloc_node(bytes, flags, node);
+}
+
+static inline __alloc_size(1, 2) void *
+kvmalloc_array(size_t n, size_t size, gfp_t flags)
+{
+	return kvmalloc_array_node(n, size, flags, NUMA_NO_NODE);
+}
+
+static inline __alloc_size(1, 2) void *
+kvcalloc_node(size_t n, size_t size, gfp_t flags, int node)
+{
+	return kvmalloc_array_node(n, size, flags | __GFP_ZERO, node);
 }
 
 static inline __alloc_size(1, 2) void *kvcalloc(size_t n, size_t size, gfp_t flags)
-- 
2.44.0