Messages in this thread | | | Date | Mon, 26 Mar 2018 19:31:10 -0700 | From | Matthew Wilcox <> | Subject | Re: [PATCH 3/6] Protectable Memory |
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On Tue, Mar 27, 2018 at 04:55:21AM +0300, Igor Stoppa wrote: > +static inline void *pmalloc_array_align(struct pmalloc_pool *pool, > + size_t n, size_t size, > + short int align_order) > +{
You're missing:
if (size != 0 && n > SIZE_MAX / size) return NULL;
> + return pmalloc_align(pool, n * size, align_order); > +}
> +static inline void *pcalloc_align(struct pmalloc_pool *pool, size_t n, > + size_t size, short int align_order) > +{ > + return pzalloc_align(pool, n * size, align_order); > +}
Ditto.
> +static inline void *pcalloc(struct pmalloc_pool *pool, size_t n, > + size_t size) > +{ > + return pzalloc_align(pool, n * size, PMALLOC_ALIGN_DEFAULT); > +}
If you make this one:
return pcalloc_align(pool, n, size, PMALLOC_ALIGN_DEFAULT)
then you don't need the check in this function.
Also, do we really need 'align' as a parameter to the allocator functions rather than to the pool?
I'd just reuse ARCH_KMALLOC_MINALIGN from slab.h as the alignment, and then add the special alignment options when we have a real user for them.
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