On Fri, Jul 20, 2001 at 10:17:20AM +0100, vishwanath pargaonkar wrote:
> Hi,
>
> can any one please help me with this. i want allocate
> a memory in the kernel -a buffer of size 2k to 5k.
> can i do it using malloc with second parameter as
> M_TEMP and third as M_WAITOK.
>
> can anybody tell me what M_TEMP means .what is maximum
> malloc i can do with M_TEMP?
> will the OS allow me to malloc 4k buffer in side
> kernel??shd i give M_WAITOK or M_DONTWAIT???
M_TEMP is merely there for statistics gathering. If you're writing
a subsystem and plan to malloc() a lot of things for the subsystem you may
want to create your own malloc type (see malloc(9)).
On another note, remember that if you allocate a 5k buffer with malloc()
on x86 where the page size if 4k, that you're not guaranteed to have a
physically contiguous backing.
> please tell me.
> thanx in advance.
Regards,
--
Bosko Milekic
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