[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 035928f..5dd0375 100644 (file)
--- 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 cbdb0af..0c90ae5 100644 (file)
--- 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 6747006..152d0ba 100644 (file)
--- 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)