Re: [PATCH] __init in mm/slab.c

From: Manfred Spraul
Date: Sun Nov 14 2004 - 03:20:25 EST

From the bk commit log:

ChangeSet 1.2132, 2004/11/13 20:59:55-08:00, Andries.Brouwer@xxxxxx

[PATCH] __init in mm/slab.c

The below removes an __initdata
(for initarray_generic that is referenced in non-init code).

I think the patch is wrong and should be reverted: initarray_generic is referenced, but never used:

if (g_cpucache_up == NONE) {
/* Note: the first kmem_cache_create must create
* the cache that's used by kmalloc(24), otherwise
* the creation of further caches will BUG().
cachep->array[smp_processor_id()] = &initarray_generic.cache;
g_cpucache_up = PARTIAL;
} else {
cachep->array[smp_processor_id()] = kmalloc(sizeof(struct arraycache_init),GFP_KERNEL);

g_cpucache_up is NONE during bootstrap and FULL after boot. Thus the initarray is never accessed after boot.

Andries, why did you propose this change? Does the current code trigger an automatic test?

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