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x86/fpu: Move fpu_copy() to fpu/core.c 

Move fpu_copy() where its only user is.

Beyond readability this also speeds up compilation, as fpu-internal.h
is included in over a dozen .c files.

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>
hifive-unleashed-5.1
Ingo Molnar 2015-04-22 20:09:29 +02:00
parent 6522d78377
commit e102f30f4e
2 changed files with 14 additions and 14 deletions
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14
arch/x86/include/asm/fpu-internal.h
View File

@ -565,20 +565,6 @@ extern int fpstate_alloc(struct fpu *fpu);
extern void fpstate_free(struct fpu *fpu);
extern int fpu__copy(struct task_struct *dst, struct task_struct *src);
static inline void fpu_copy(struct task_struct *dst, struct task_struct *src)
{
if (use_eager_fpu()) {
memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
__save_fpu(dst);
} else {
struct fpu *dfpu = &dst->thread.fpu;
struct fpu *sfpu = &src->thread.fpu;
fpu__save(src);
memcpy(dfpu->state, sfpu->state, xstate_size);
}
}
static inline unsigned long
alloc_mathframe(unsigned long sp, int ia32_frame, unsigned long *buf_fx,
unsigned long *size)

14
arch/x86/kernel/fpu/core.c
View File

@ -203,6 +203,20 @@ void fpstate_free(struct fpu *fpu)
}
EXPORT_SYMBOL_GPL(fpstate_free);
static void fpu_copy(struct task_struct *dst, struct task_struct *src)
{
if (use_eager_fpu()) {
memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
__save_fpu(dst);
} else {
struct fpu *dfpu = &dst->thread.fpu;
struct fpu *sfpu = &src->thread.fpu;
fpu__save(src);
memcpy(dfpu->state, sfpu->state, xstate_size);
}
}
int fpu__copy(struct task_struct *dst, struct task_struct *src)
{
dst->thread.fpu.counter = 0;