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authorAl Viro <viro@parcelfarce.linux.theplanet.co.uk>2005-11-13 16:06:55 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-13 18:14:13 -0800
commita1261f54611ec4ad6a7ab7080f86747e3ac3685b (patch)
tree8a65c419da590e3712543f69284fb5f8cd613a37 /include/linux/sched.h
parent7feacd53347c04aee789ba5d632eda0c3fc421c4 (diff)
downloadlwn-a1261f54611ec4ad6a7ab7080f86747e3ac3685b.tar.gz
lwn-a1261f54611ec4ad6a7ab7080f86747e3ac3685b.zip
[PATCH] m68k: introduce task_thread_info
new helper - task_thread_info(task). On platforms that have thread_info allocated separately (i.e. in default case) it simply returns task->thread_info. m68k wants (and for good reasons) to embed its thread_info into task_struct. So it will (in later patch) have task_thread_info() of its own. For now we just add a macro for generic case and convert existing instances of its body in core kernel to uses of new macro. Obviously safe - all normal architectures get the same preprocessor output they used to get. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h16
1 files changed, 9 insertions, 7 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2bbf968b23d9..f8650314ba2f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1233,32 +1233,34 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
+#define task_thread_info(task) (task)->thread_info
+
/* set thread flags in other task's structures
* - see asm/thread_info.h for TIF_xxxx flags available
*/
static inline void set_tsk_thread_flag(struct task_struct *tsk, int flag)
{
- set_ti_thread_flag(tsk->thread_info,flag);
+ set_ti_thread_flag(task_thread_info(tsk), flag);
}
static inline void clear_tsk_thread_flag(struct task_struct *tsk, int flag)
{
- clear_ti_thread_flag(tsk->thread_info,flag);
+ clear_ti_thread_flag(task_thread_info(tsk), flag);
}
static inline int test_and_set_tsk_thread_flag(struct task_struct *tsk, int flag)
{
- return test_and_set_ti_thread_flag(tsk->thread_info,flag);
+ return test_and_set_ti_thread_flag(task_thread_info(tsk), flag);
}
static inline int test_and_clear_tsk_thread_flag(struct task_struct *tsk, int flag)
{
- return test_and_clear_ti_thread_flag(tsk->thread_info,flag);
+ return test_and_clear_ti_thread_flag(task_thread_info(tsk), flag);
}
static inline int test_tsk_thread_flag(struct task_struct *tsk, int flag)
{
- return test_ti_thread_flag(tsk->thread_info,flag);
+ return test_ti_thread_flag(task_thread_info(tsk), flag);
}
static inline void set_tsk_need_resched(struct task_struct *tsk)
@@ -1329,12 +1331,12 @@ extern void signal_wake_up(struct task_struct *t, int resume_stopped);
static inline unsigned int task_cpu(const struct task_struct *p)
{
- return p->thread_info->cpu;
+ return task_thread_info(p)->cpu;
}
static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
{
- p->thread_info->cpu = cpu;
+ task_thread_info(p)->cpu = cpu;
}
#else