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Commit 72d09633 authored by Eric Dumazet's avatar Eric Dumazet Committed by Linus Torvalds
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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: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarSeth Jennings <sjennings@variantweb.net>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d867f203

mm/zswap.c

+1 −1
Original line number Diff line number Diff line
@@ -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);