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Commit acfe7d74 authored by Eric Dumazet's avatar Eric Dumazet Committed by Pekka Enberg
Browse files

slab: remove one NR_CPUS dependency 



Reduce high order allocations in do_tune_cpucache() for some setups.
(NR_CPUS=4096 -> we need 64KB)

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent 95b68865

mm/slab.c

+3 −2
Original line number Diff line number Diff line
@@ -3934,7 +3934,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp) 


struct ccupdate_struct {

	struct kmem_cache *cachep;

	struct array_cache *new[NR_CPUS];

	struct array_cache *new[0];

};



static void do_ccupdate_local(void *info)
@@ -3956,7 +3956,8 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit, 
	struct ccupdate_struct *new;

	int i;



	new = kzalloc(sizeof(*new), gfp);

	new = kzalloc(sizeof(*new) + nr_cpu_ids * sizeof(struct array_cache *),

		      gfp);

	if (!new)

		return -ENOMEM;