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Message-Id: <e36ec0763cb0eec04b40af33b2384581c084baf1.1437665045.git.luto@kernel.org> Date: Thu, 23 Jul 2015 08:31:43 -0700 From: Andy Lutomirski <luto@...nel.org> To: X86 ML <x86@...nel.org>, linux-kernel@...r.kernel.org Cc: Steven Rostedt <rostedt@...dmis.org>, Willy Tarreau <w@....eu>, Borislav Petkov <bp@...en8.de>, Thomas Gleixner <tglx@...utronix.de>, Peter Zijlstra <peterz@...radead.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Andy Lutomirski <luto@...nel.org> Subject: [PATCH 5/5] x86/entry: Replace SWAPGS_UNSAFE_STACK with SWAPGS in entry_SYSENTER_compat Now that we have a valid stack between SYSENTER and SWAPGS, let paravirt use it. Signed-off-by: Andy Lutomirski <luto@...nel.org> --- arch/x86/entry/entry_64_compat.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index d7571532e7ce..35ee218e8d4d 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -63,7 +63,7 @@ ENTRY(entry_SYSENTER_compat) * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON, * it is too small to ever cause noticeable irq latency. */ - SWAPGS_UNSAFE_STACK + SWAPGS movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp ENABLE_INTERRUPTS(CLBR_NONE) -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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