On 3/19/2007, "Andrew Morton" <[EMAIL PROTECTED]> wrote:
> Would prefer to do:
>
> static inline void kmem_cache_free_if_not_null(struct kmem_cache *cachep,
> void *objp)
> {
> if (objp)
> kmem_cache_free(cachep, objp);
> }
>
> so that we don't add extra overhead to all the thousands of existing,
> well-behaved callsites.
That bloats kernel text all the same so it's much cleaner to just make
the callers explicitly check for NULL then. That said, I'm sorry but I
just don't buy the "overhead" part of your argument since it's one
branch and no extra data cache pressure especially as we're already
doing the BUG_ON and page flag checking.
But, since you're NAKing my patch, we need to get the mempool for from
the original thread in to fix the oops.
Pekka
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