2012/5/19 Christoph Lameter <cl@xxxxxxxxx>:
> This patch has the effect of adding sanity checks for SLUB and SLOB
> under CONFIG_DEBUG_VM and removes the checks in SLAB for !CONFIG_DEBUG_VM.
If !CONFIG_DEBUG_VM,
code for sanity checks remain in __kmem_cache_create in slab.c, doesn't it?
> +#ifdef CONFIG_DEBUG_VM
> + if (!name || in_interrupt() || size < sizeof(void *) ||
> + size > KMALLOC_MAX_SIZE) {
> + printk(KERN_ERR "kmem_cache_create(%s) integrity check"
> + " failed\n", name);
> + goto out;
> + }
> +#endif
Currently, when !CONFIG_DEBUG_VM, name check is handled differently in
sl[aou]bs.
slob worked with !name, but slab, slub return NULL.
So I think some change is needed for name handling.
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