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| author | Andy Lutomirski <luto@kernel.org> | 2016-10-31 15:18:49 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-01 07:47:55 +0100 |
| commit | af25ed59b5616b389d90877f7085dc5d457a3d49 (patch) | |
| tree | aef06c59b5b02eae1d6250bb4ad34466bf1615b5 /arch/x86/include/asm/special_insns.h | |
| parent | 0d50612c041f213fb6b98e3ff06e306a859c36f2 (diff) | |
| download | lwn-af25ed59b5616b389d90877f7085dc5d457a3d49.tar.gz lwn-af25ed59b5616b389d90877f7085dc5d457a3d49.zip | |
x86/fpu: Remove clts()
The kernel doesn't use clts() any more. Remove it and all of its
paravirt infrastructure.
A careful reader may notice that xen_clts() appears to have been
buggy -- it didn't update xen_cr0_value.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kvm list <kvm@vger.kernel.org>
Link: http://lkml.kernel.org/r/3d3c8ca62f17579b9849a013d71e59a4d5d1b079.1477951965.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/special_insns.h')
| -rw-r--r-- | arch/x86/include/asm/special_insns.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h index 29b417bd8a68..12af3e35edfa 100644 --- a/arch/x86/include/asm/special_insns.h +++ b/arch/x86/include/asm/special_insns.h @@ -6,11 +6,6 @@ #include <asm/nops.h> -static inline void native_clts(void) -{ - asm volatile("clts"); -} - /* * Volatile isn't enough to prevent the compiler from reordering the * read/write functions for the control registers and messing everything up. @@ -208,12 +203,6 @@ static inline void load_gs_index(unsigned selector) #endif -/* Clear the 'TS' bit */ -static inline void clts(void) -{ - native_clts(); -} - #endif/* CONFIG_PARAVIRT */ static inline void clflush(volatile void *__p) |