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x86/fpu: Rename save_xstate_sig() to copy_fpstate_to_sigframe()

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Standardize the naming of save_xstate_sig() by renaming it to
copy_fpstate_to_sigframe(): this tells us at a glance that
the function copies an FPU fpstate to a signal frame.

This naming also follows the naming of copy_fpregs_to_fpstate().

Don't put 'xstate' into the name: since this is a generic name,
it's expected that the function is able to handle xstate frames
as well, beyond legacy frames.

xstate used to be the odd case in the x86 FPU code - now it's the
common case.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
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>
This commit is contained in:
Ingo Molnar 2015-04-28 11:35:20 +02:00
parent 36e49e7f2e
commit c8e1404120
4 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86/ia32/ia32_signal.c
View file

@ -327,7 +327,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
sp = alloc_mathframe(sp, 1, &fx_aligned, &math_size);
*fpstate = (struct _fpstate_ia32 __user *) sp;
if (save_xstate_sig(*fpstate, (void __user *)fx_aligned,
if (copy_fpstate_to_sigframe(*fpstate, (void __user *)fx_aligned,
math_size) < 0)
return (void __user *) -1L;
}

2
arch/x86/include/asm/fpu/internal.h
View file

@ -523,7 +523,7 @@ static inline void switch_fpu_finish(struct fpu *new_fpu, fpu_switch_t fpu_switc
/*
* Signal frame handlers...
*/
extern int save_xstate_sig(void __user *buf, void __user *fx, int size);
extern int copy_fpstate_to_sigframe(void __user *buf, void __user *fx, int size);
extern int __restore_xstate_sig(void __user *buf, void __user *fx, int size);
static inline int xstate_sigframe_size(void)

2
arch/x86/kernel/fpu/xstate.c
View file

@ -293,7 +293,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
* For [f]xsave state, update the SW reserved fields in the [f]xsave frame
* indicating the absence/presence of the extended state to the user.
*/
int save_xstate_sig(void __user *buf, void __user *buf_fx, int size)
int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
{
struct xsave_struct *xsave = &current->thread.fpu.state.xsave;
struct task_struct *tsk = current;

2
arch/x86/kernel/signal.c
View file

@ -235,7 +235,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
/* save i387 and extended state */
if (fpu->fpstate_active &&
save_xstate_sig(*fpstate, (void __user *)buf_fx, math_size) < 0)
copy_fpstate_to_sigframe(*fpstate, (void __user *)buf_fx, math_size) < 0)
return (void __user *)-1L;
return (void __user *)sp;