linux-kernel - [tip:x86/fpu] x86/fpu: Move lazy restore functions up a few lines

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Message-ID: <tip-1c927eea4cad83c439cb51e9c96ad19cb005157d@git.kernel.org>
Date:	Thu, 19 Feb 2015 03:33:16 -0800
From:	tip-bot for Rik van Riel <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...nel.org, hpa@...or.com, oleg@...hat.com,
	torvalds@...ux-foundation.org, bp@...e.de,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, riel@...hat.com
Subject: [tip:x86/fpu] x86/fpu: Move lazy restore functions up a few lines

Commit-ID:  1c927eea4cad83c439cb51e9c96ad19cb005157d
Gitweb:     http://git.kernel.org/tip/1c927eea4cad83c439cb51e9c96ad19cb005157d
Author:     Rik van Riel <riel@...hat.com>
AuthorDate: Fri, 6 Feb 2015 15:02:01 -0500
Committer:  Borislav Petkov <bp@...e.de>
CommitDate: Thu, 19 Feb 2015 11:15:53 +0100

x86/fpu: Move lazy restore functions up a few lines

We need another lazy restore related function, that will be called
from a function that is above where the lazy restore functions are
now. It would be nice to keep all three functions grouped together.

Signed-off-by: Rik van Riel <riel@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Link: http://lkml.kernel.org/r/1423252925-14451-5-git-send-email-riel@redhat.com
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/include/asm/fpu-internal.h | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 02f2e08..217d6d7 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -67,6 +67,24 @@ extern void finit_soft_fpu(struct i387_soft_struct *soft);
 static inline void finit_soft_fpu(struct i387_soft_struct *soft) {}
 #endif
 
+/*
+ * Must be run with preemption disabled: this clears the fpu_owner_task,
+ * on this CPU.
+ *
+ * This will disable any lazy FPU state restore of the current FPU state,
+ * but if the current thread owns the FPU, it will still be saved by.
+ */
+static inline void __cpu_disable_lazy_restore(unsigned int cpu)
+{
+	per_cpu(fpu_owner_task, cpu) = NULL;
+}
+
+static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu)
+{
+	return new == this_cpu_read_stable(fpu_owner_task) &&
+		cpu == new->thread.fpu.last_cpu;
+}
+
 static inline int is_ia32_compat_frame(void)
 {
 	return config_enabled(CONFIG_IA32_EMULATION) &&
@@ -398,24 +416,6 @@ static inline void drop_init_fpu(struct task_struct *tsk)
  */
 typedef struct { int preload; } fpu_switch_t;
 
-/*
- * Must be run with preemption disabled: this clears the fpu_owner_task,
- * on this CPU.
- *
- * This will disable any lazy FPU state restore of the current FPU state,
- * but if the current thread owns the FPU, it will still be saved by.
- */
-static inline void __cpu_disable_lazy_restore(unsigned int cpu)
-{
-	per_cpu(fpu_owner_task, cpu) = NULL;
-}
-
-static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu)
-{
-	return new == this_cpu_read_stable(fpu_owner_task) &&
-		cpu == new->thread.fpu.last_cpu;
-}
-
 static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct task_struct *new, int cpu)
 {
 	fpu_switch_t fpu;
--
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