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PERCPU : __percpu_alloc_mask() can dynamically size percpu_data storage

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Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data,
we can use nr_cpu_ids, which is generally < NR_CPUS.

Signed-off-by: Eric Dumazet <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: "David S. Miller" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Eric Dumazet 2008-02-06 01:37:01 -08:00 • committed by Linus Torvalds
commit b324215190
2 changed files with 2 additions and 2 deletions
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2
mm/allocpercpu.c
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@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(__percpu_populate_mask);
*/
void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask)
{
void *pdata = kzalloc(sizeof(struct percpu_data), gfp);
void *pdata = kzalloc(nr_cpu_ids * sizeof(void *), gfp);
void *__pdata = __percpu_disguise(pdata);
if (unlikely(!pdata))