Re: [PATCH TRIVIAL] mm: Fix build warning in kmem_cache_create()

From: David Rientjes
Date: Mon Jul 16 2012 - 05:58:21 EST


On Sun, 15 Jul 2012, Shuah Khan wrote:

> I can work on reshuffling the code. Do have a question though. This
> following sanity check is currently done only when CONFIG_DEBUG_VM is
> defined. However, it does appear to be something that is that should be
> checked even in regular path.
>
> struct kmem_cache *kmem_cache_create(const char *name, size_t size,
> size_t align,
> unsigned long flags, void (*ctor)(void *))
> {
> struct kmem_cache *s = NULL;
>
> #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
>

Agreed, this shouldn't depend on CONFIG_DEBUG_VM.
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