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x86/fpu: Rename fpu__activate_curr() to fpu__initialize()

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Rename this function to better express that it's all about
initializing the FPU state of a task which goes hand in hand
with the fpu::initialized field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Eric Biggers <ebiggers3@gmail.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Link: http://lkml.kernel.org/r/20170923130016.21448-33-mingo@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2017-09-23 15:00:15 +02:00
parent e10078eba6
commit 2ce03d850b
5 changed files with 8 additions and 8 deletions
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2
arch/x86/include/asm/fpu/internal.h
View File

@ -23,7 +23,7 @@
/*
* High level FPU state handling functions:
*/
extern void fpu__activate_curr(struct fpu *fpu);
extern void fpu__initialize(struct fpu *fpu);
extern void fpu__activate_fpstate_read(struct fpu *fpu);
extern void fpu__activate_fpstate_write(struct fpu *fpu);
extern void fpu__save(struct fpu *fpu);

8
arch/x86/kernel/fpu/core.c
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@ -224,7 +224,7 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
* Activate the current task's in-memory FPU context,
* if it has not been used before:
*/
void fpu__activate_curr(struct fpu *fpu)
void fpu__initialize(struct fpu *fpu)
{
WARN_ON_FPU(fpu != &current->thread.fpu);
@ -237,7 +237,7 @@ void fpu__activate_curr(struct fpu *fpu)
fpu->initialized = 1;
}
}
EXPORT_SYMBOL_GPL(fpu__activate_curr);
EXPORT_SYMBOL_GPL(fpu__initialize);
/*
* This function must be called before we read a task's fpstate.
@ -316,7 +316,7 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
*/
void fpu__restore(struct fpu *fpu)
{
fpu__activate_curr(fpu);
fpu__initialize(fpu);
/* Avoid __kernel_fpu_begin() right after fpregs_activate() */
kernel_fpu_disable();
@ -392,7 +392,7 @@ void fpu__clear(struct fpu *fpu)
*/
if (static_cpu_has(X86_FEATURE_FPU)) {
preempt_disable();
fpu__activate_curr(fpu);
fpu__initialize(fpu);
user_fpu_begin();
copy_init_fpstate_to_fpregs();
preempt_enable();

2
arch/x86/kernel/fpu/signal.c
View File

@ -280,7 +280,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
if (!access_ok(VERIFY_READ, buf, size))
return -EACCES;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
if (!static_cpu_has(X86_FEATURE_FPU))
return fpregs_soft_set(current, NULL,

2
arch/x86/kvm/x86.c
View File

@ -7225,7 +7225,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
int r;
sigset_t sigsaved;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);

2
arch/x86/math-emu/fpu_entry.c
View File

@ -114,7 +114,7 @@ void math_emulate(struct math_emu_info *info)
struct desc_struct code_descriptor;
struct fpu *fpu = &current->thread.fpu;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
#ifdef RE_ENTRANT_CHECKING
if (emulating) {