Messages in this thread | | | Date | Sun, 29 Jun 2008 16:29:44 +0300 | From | Avi Kivity <> | Subject | Re: ABI change for device drivers using future AVX instruction set |
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Andi Kleen wrote:
>> If you use xsave, I don't see how this is different to the user fpu save >> area. >> > > For once there's no clear error handling path for allocation failures > on the (arbitarily sized) xsave state. On user code that can be barely > tolerated, but for the kernel it would be deadly. >
if (kernel_fpu_begin() < 0) goto no_sse;
The question is not if it can be done or not, it's whether making raid preemptible is worthwhile, and whether we see/want more sse/avx accelerated drivers or not.
-- error compiling committee.c: too many arguments to function
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