From: Al Viro <viro@ftp.linux.org.uk>
Date: Thu, 12 Jan 2006 09:05:40 +0000 (-0800)
Subject: [PATCH] i386: task_thread_info()
X-Git-Tag: v2.6.16-rc1~266
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=06b425d80f56280e698b3e8487c372e0d39d9ba1;p=linux-2.6

[PATCH] i386: task_thread_info()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 035928f3f6..5dd03757f5 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -601,8 +601,8 @@ static inline void disable_tsc(struct task_struct *prev_p,
 	 * gcc should eliminate the ->thread_info dereference if
 	 * has_secure_computing returns 0 at compile time (SECCOMP=n).
 	 */
-	prev = prev_p->thread_info;
-	next = next_p->thread_info;
+	prev = task_thread_info(prev_p);
+	next = task_thread_info(next_p);
 
 	if (has_secure_computing(prev) || has_secure_computing(next)) {
 		/* slow path here */
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index cbdb0afed7..0c90ae54dd 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -311,7 +311,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 		"movl %1,%%ebp\n\t"
 		"jmp resume_userspace"
 		: /* no outputs */
-		:"r" (&info->regs), "r" (tsk->thread_info) : "ax");
+		:"r" (&info->regs), "r" (task_thread_info(tsk)) : "ax");
 	/* we never return here */
 }
 
diff --git a/include/asm-i386/i387.h b/include/asm-i386/i387.h
index 6747006743..152d0baa57 100644
--- a/include/asm-i386/i387.h
+++ b/include/asm-i386/i387.h
@@ -49,19 +49,19 @@ static inline void __save_init_fpu( struct task_struct *tsk )
 		X86_FEATURE_FXSR,
 		"m" (tsk->thread.i387.fxsave)
 		:"memory");
-	tsk->thread_info->status &= ~TS_USEDFPU;
+	task_thread_info(tsk)->status &= ~TS_USEDFPU;
 }
 
 #define __unlazy_fpu( tsk ) do { \
-	if ((tsk)->thread_info->status & TS_USEDFPU) \
+	if (task_thread_info(tsk)->status & TS_USEDFPU) \
 		save_init_fpu( tsk ); \
 } while (0)
 
 #define __clear_fpu( tsk )					\
 do {								\
-	if ((tsk)->thread_info->status & TS_USEDFPU) {		\
+	if (task_thread_info(tsk)->status & TS_USEDFPU) {		\
 		asm volatile("fnclex ; fwait");				\
-		(tsk)->thread_info->status &= ~TS_USEDFPU;	\
+		task_thread_info(tsk)->status &= ~TS_USEDFPU;	\
 		stts();						\
 	}							\
 } while (0)