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x86/fpu: Rename restore_xstate_sig() to fpu__restore_sig()

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restore_xstate_sig() is a misnomer: it's not limited to 'xstate' at all,
it is the high level 'restore FPU state from a signal frame' function
that works with all legacy FPU formats as well.

Rename it (and its helper) accordingly, and also move it to the
fpu__*() namespace.

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 2015-04-29 20:55:19 +02:00
parent 04c8e01d50
commit 9dfe99b755
4 changed files with 6 additions and 6 deletions
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2
arch/x86/ia32/ia32_signal.c
View File

@ -197,7 +197,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
buf = compat_ptr(tmp);
} get_user_catch(err);
err |= restore_xstate_sig(buf, 1);
err |= fpu__restore_sig(buf, 1);
force_iret();

6
arch/x86/include/asm/fpu/internal.h
View File

@ -497,14 +497,14 @@ static inline void switch_fpu_finish(struct fpu *new_fpu, fpu_switch_t fpu_switc
* Signal frame handlers...
*/
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);
extern int __fpu__restore_sig(void __user *buf, void __user *fx, int size);
static inline int xstate_sigframe_size(void)
{
return use_xsave() ? xstate_size + FP_XSTATE_MAGIC2_SIZE : xstate_size;
}
static inline int restore_xstate_sig(void __user *buf, int ia32_frame)
static inline int fpu__restore_sig(void __user *buf, int ia32_frame)
{
void __user *buf_fx = buf;
int size = xstate_sigframe_size();
@ -514,7 +514,7 @@ static inline int restore_xstate_sig(void __user *buf, int ia32_frame)
size += sizeof(struct i387_fsave_struct);
}
return __restore_xstate_sig(buf, buf_fx, size);
return __fpu__restore_sig(buf, buf_fx, size);
}
/*

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

@ -388,7 +388,7 @@ static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
return frstor_user(buf);
}
int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
{
int ia32_fxstate = (buf != buf_fx);
struct task_struct *tsk = current;

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

@ -102,7 +102,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
get_user_ex(buf, &sc->fpstate);
} get_user_catch(err);
err |= restore_xstate_sig(buf, config_enabled(CONFIG_X86_32));
err |= fpu__restore_sig(buf, config_enabled(CONFIG_X86_32));
force_iret();