Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 28 Dec 2006 15:51:59 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [PATCH] Use correct macros in raid code, not raw asm |
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On Fri, 29 Dec 2006, Rusty Russell wrote: > > This make sure it's paravirtualized correctly when CONFIG_PARAVIRT=y.
Why doesn't this code use "kernel_fpu_begin()" and "kernel_fpu_end()"?
The raid6 code is crap, and slower. It does "fsave/frstor" or movaps or other crud, and the thing is, it shouldn't. It should just do kernel_fpu_begin/end(), which does it all right, and avoids saving any state at all unless it's being used by the user RIGHT NOW.
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