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| author | Ingo Molnar <mingo@kernel.org> | 2015-04-03 12:02:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:10 +0200 |
| commit | 97185c95f7ab7f752473c34672dab0925758094b (patch) | |
| tree | 287e1d57d678656ada4da43572d1defef7d3ae7e /arch/x86/kvm | |
| parent | 68ad8b9feae583cc5102ec86ad410fce542a5311 (diff) | |
| download | op-kernel-dev-97185c95f7ab7f752473c34672dab0925758094b.zip op-kernel-dev-97185c95f7ab7f752473c34672dab0925758094b.tar.gz | |
x86/fpu: Split an fpstate_alloc_init() function out of init_fpu()
Most init_fpu() users don't want the register-saving aspect of the
function, they are calling it for 'current' and when FPU registers
are not allocated and initialized yet.
Split out a simplified API that does just that (and add debug-checks
for these conditions): fpstate_alloc_init().
Use it where appropriate.
Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c73efcd..bfc3966 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6600,7 +6600,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int r; sigset_t sigsaved; - if (!tsk_used_math(current) && init_fpu(current)) + if (!tsk_used_math(current) && fpstate_alloc_init(current)) return -ENOMEM; if (vcpu->sigset_active) |
