| Date | Tue, 20 Jun 2023 10:47:44 +0200 | From | Borislav Petkov <> | Subject | Re: [patch v3 3/7] x86/smp: Remove pointless wmb()s from native_stop_other_cpus() |
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On Thu, Jun 15, 2023 at 10:33:54PM +0200, Thomas Gleixner wrote: > The wmb()s before sending the IPIs are not synchronizing anything. > > If at all then the apic IPI functions have to provide or act as appropriate > barriers. > > Remove these cargo cult barriers which have no explanation of what they are > synchronizing. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > --- > V3: Remove second instance and reword changelog - PeterZ > --- > arch/x86/kernel/smp.c | 6 ------ > 1 file changed, 6 deletions(-)
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
-- Regards/Gruss, Boris.
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