Messages in this thread | | | Subject | Re: [PATCH] x86/fpu: Disable BH while while loading FPU registers in __fpu__restore_sig() | From | Dave Hansen <> | Date | Mon, 19 Nov 2018 07:08:44 -0800 |
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On 11/19/18 7:06 AM, Sebastian Andrzej Siewior wrote: > On 2018-11-19 07:04:35 [-0800], Dave Hansen wrote: >> Does the local_bh_disable() itself survive? > Not in __fpu__restore_sig(). I do have: > | static inline void __fpregs_changes_begin(void) > | { > | preempt_disable(); > | local_bh_disable(); > | } > > and __fpregs_changes_begin() is introduced as part of the series.
OK, so can we just comment *that*, please? Basically, why do we need botj?
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