On Sun, Mar 04, 2001 at 11:41:12PM +0100, Manfred Spraul wrote:
> >
> > Does kmalloc() make any guarantees of the alignment of allocated
> > blocks? Will the returned block always be 4-, 8- or 16-byte
> > aligned, for example?
> >
>
> 4-byte alignment is guaranteed on 32-bit cpus, 8-byte alignment on
> 64-bit cpus.
So, to summarise (for 32-bit CPUs):
o Alan Cox & Manfred Spraul say 4-byte alignment is guaranteed.
o If you need larger alignment, you need to alloc a larger space,
round as necessary, and keep the original pointer for kfree()
Maybe I'll just use get_free_pages, since it's a 64KB chunk that
I need (and it's only a once-off).
Thanks for your advice.
Later,
Kenn
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