Andy Lutomirski cf9328cc99 x86/asm/entry/32: Stop caching MSR_IA32_SYSENTER_ESP in tss.sp1 ... We write a stack pointer to MSR_IA32_SYSENTER_ESP exactly once, and we unnecessarily cache the value in tss.sp1. We never read the cached value. Remove all of the caching. It serves no purpose. Suggested-by: Denys Vlasenko <dvlasenk@redhat.com> Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/05a0163eb33ef5208363f0015496855da7cebadd.1428002830.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-04-03 08:30:44 +02:00
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asm	x86/asm/entry/32: Stop caching MSR_IA32_SYSENTER_ESP in tss.sp1	2015-04-03 08:30:44 +02:00
uapi/asm	Linux 4.0-rc5	2015-03-23 11:13:15 +01:00