[PATCH 31/50] arm: task_thread_info()

From: Al Viro
Date: Tue Jan 03 2006 - 16:11:49 EST


References: <20060103210515.5135@xxxxxxxxxxxxxxxx>
In-Reply-To: <20060103210515.5135@xxxxxxxxxxxxxxxx>

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

---

arch/arm/kernel/process.c | 4 ++--
arch/arm/kernel/ptrace.c | 10 +++++-----
include/asm-arm/system.h | 2 +-
include/asm-arm/thread_info.h | 4 ++--
4 files changed, 10 insertions(+), 10 deletions(-)

c7ac2c8f297bf79b4e036bd41a7d3152065c6d28
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 30494aa..ca0febd 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -343,10 +343,10 @@ void flush_thread(void)
void release_thread(struct task_struct *dead_task)
{
#if defined(CONFIG_VFP)
- vfp_release_thread(&dead_task->thread_info->vfpstate);
+ vfp_release_thread(&task_thread_info(dead_task)->vfpstate);
#endif
#if defined(CONFIG_IWMMXT)
- iwmmxt_task_release(dead_task->thread_info);
+ iwmmxt_task_release(task_thread_info(dead_task));
#endif
}

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 2b84f78..f003062 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -604,7 +604,7 @@ static int ptrace_setregs(struct task_st
*/
static int ptrace_getfpregs(struct task_struct *tsk, void __user *ufp)
{
- return copy_to_user(ufp, &tsk->thread_info->fpstate,
+ return copy_to_user(ufp, &task_thread_info(tsk)->fpstate,
sizeof(struct user_fp)) ? -EFAULT : 0;
}

@@ -613,7 +613,7 @@ static int ptrace_getfpregs(struct task_
*/
static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
thread->used_cp[1] = thread->used_cp[2] = 1;
return copy_from_user(&thread->fpstate, ufp,
sizeof(struct user_fp)) ? -EFAULT : 0;
@@ -626,7 +626,7 @@ static int ptrace_setfpregs(struct task_
*/
static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;

if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
@@ -643,7 +643,7 @@ static int ptrace_getwmmxregs(struct tas
*/
static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;

if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
@@ -779,7 +779,7 @@ long arch_ptrace(struct task_struct *chi
#endif

case PTRACE_GET_THREAD_AREA:
- ret = put_user(child->thread_info->tp_value,
+ ret = put_user(task_thread_info(child)->tp_value,
(unsigned long __user *) data);
break;

diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index 5621d61..a7da094 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -168,7 +168,7 @@ extern struct task_struct *__switch_to(s

#define switch_to(prev,next,last) \
do { \
- last = __switch_to(prev,prev->thread_info,next->thread_info); \
+ last = __switch_to(prev,task_thread_info(prev), task_thread_info(next)); \
} while (0)

/*
diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h
index 7c98557..46a4e98 100644
--- a/include/asm-arm/thread_info.h
+++ b/include/asm-arm/thread_info.h
@@ -100,9 +100,9 @@ extern void free_thread_info(struct thre
#define put_thread_info(ti) put_task_struct((ti)->task)

#define thread_saved_pc(tsk) \
- ((unsigned long)(pc_pointer((tsk)->thread_info->cpu_context.pc)))
+ ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))
#define thread_saved_fp(tsk) \
- ((unsigned long)((tsk)->thread_info->cpu_context.fp))
+ ((unsigned long)(task_thread_info(tsk)->cpu_context.fp))

extern void iwmmxt_task_disable(struct thread_info *);
extern void iwmmxt_task_copy(struct thread_info *, void *);
--
0.99.9.GIT

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