Re: cdrom: use kmalloced buffers instead of buffers on stack

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From: David Miller

Subject: Re: cdrom: use kmalloced buffers instead of buffers on stack

Date: Monday, April 21, 2008 - 7:03 pm

From: Jeff Garzik <jeff@garzik.org>
Date: Mon, 21 Apr 2008 22:01:26 -0400

quoted text> Eh... AFAICS this is only really useful in two of the cases converted.
> 
> For all the other cases (<= 32 bytes), it is _far_ less complex, far 
> less code to simply communicate the additional alignment requirements to 
> the compiler.
> 
> What about __attribute__ __aligned__?  Was that tried?

On some platforms the stack is virtually mapped instead of
from kmalloc or get_free_pages memory.

DMA on stack buffers is really not feasible.
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Messages in current thread:

Re: cdrom: use kmalloced buffers instead of buffers on stack, Jeff Garzik, (Mon Apr 21, 7:01 pm)

Re: cdrom: use kmalloced buffers instead of buffers on stack, David Miller, (Mon Apr 21, 7:03 pm)

Re: cdrom: use kmalloced buffers instead of buffers on stack, Thomas Bogendoerfer, (Mon Apr 21, 10:48 pm)

Re: cdrom: use kmalloced buffers instead of buffers on stack, Jens Axboe, (Mon Apr 21, 11:33 pm)

Re: cdrom: use kmalloced buffers instead of buffers on stack, FUJITA Tomonori, (Tue Apr 22, 4:47 am)

Re: cdrom: use kmalloced buffers instead of buffers on stack, Jens Axboe, (Tue Apr 22, 4:55 am)

Re: cdrom: use kmalloced buffers instead of buffers on stack, FUJITA Tomonori, (Tue Apr 22, 4:59 am)

Re: cdrom: use kmalloced buffers instead of buffers on stack, Jens Axboe, (Tue Apr 22, 5:04 am)

Re: cdrom: use kmalloced buffers instead of buffers on stack, FUJITA Tomonori, (Tue Apr 22, 5:25 am)

Re: cdrom: use kmalloced buffers instead of buffers on stack, Jens Axboe, (Tue Apr 22, 5:30 am)


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