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authorEric Dumazet <edumazet@google.com>2014-06-04 16:11:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-04 16:54:14 -0700
commit72d09633c9afa02bea317d65eb8b8a4ce7659a2a (patch)
tree0ba5329fbb8261c0b24591532d2bc83a4067a2e4
parentd867f203b974e9a670028fda909ef09044b221f6 (diff)
downloadlinux-linaro-stable-72d09633c9afa02bea317d65eb8b8a4ce7659a2a.tar.gz
mm/zswap: NUMA aware allocation for zswap_dstmem
zswap_dstmem is a percpu block of memory, which should be allocated using kmalloc_node(), to get better NUMA locality. Without it, all the blocks are allocated from a single node. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Seth Jennings <sjennings@variantweb.net> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/zswap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/zswap.c b/mm/zswap.c
index aeaef0fb5624..008388fe7b0f 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -347,7 +347,7 @@ static int __zswap_cpu_notifier(unsigned long action, unsigned long cpu)
return NOTIFY_BAD;
}
*per_cpu_ptr(zswap_comp_pcpu_tfms, cpu) = tfm;
- dst = kmalloc(PAGE_SIZE * 2, GFP_KERNEL);
+ dst = kmalloc_node(PAGE_SIZE * 2, GFP_KERNEL, cpu_to_node(cpu));
if (!dst) {
pr_err("can't allocate compressor buffer\n");
crypto_free_comp(tfm);