On Sat, Feb 1, 2014 at 5:38 PM, Linus Torvalds <torva...@linux-foundation.org> wrote: > It definitely does not want an else, I think. > > If tsk_used_math() is false, or if the FPU restore failed, we > *definitely* need that stts(). Otherwise we'd return to user mode with > random contents in the FP state, and let user mode muck around with > it. > > No?
So if the restore failed, we should do something like drop_init_fpu(), which will restore init-state to the registers. for eager-fpu() paths we don't use clts() stts() etc. thanks, suresh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
