| Date | Mon, 27 Nov 2017 18:22:16 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 10/24] x86/mm/kaiser: Map the entry stack variables |
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On Mon, Nov 27, 2017 at 11:49:09AM +0100, Ingo Molnar wrote: > diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c > index 157f81816915..631e229ab428 100644 > --- a/arch/x86/kernel/process_64.c > +++ b/arch/x86/kernel/process_64.c > @@ -59,7 +59,7 @@ > #include <asm/unistd_32_ia32.h> > #endif > > -__visible DEFINE_PER_CPU(unsigned long, rsp_scratch); > +__visible DEFINE_PER_CPU_USER_MAPPED(unsigned long, rsp_scratch); > > /* Prints also some state that isn't saved in the pt_regs */ > void __show_regs(struct pt_regs *regs, int all)
Do we still need this one? It appears to me we'll never actually execute that part of entry_SYSCALL_64 anymore, due to entry_SYSCALL_64_trampoline.
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