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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>
This commit is contained in:
Eric Dumazet 2014-06-04 16:11:11 -07:00 committed by Linus Torvalds
parent d867f203b9
commit 72d09633c9
1 changed files with 1 additions and 1 deletions
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2
mm/zswap.c
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@ -347,7 +347,7 @@ static int __zswap_cpu_notifier(unsigned long action, unsigned long cpu)
return NOTIFY_BAD; return NOTIFY_BAD;
} }
*per_cpu_ptr(zswap_comp_pcpu_tfms, cpu) = tfm; *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) { if (!dst) {
pr_err("can't allocate compressor buffer\n"); pr_err("can't allocate compressor buffer\n");
crypto_free_comp(tfm); crypto_free_comp(tfm);