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Subject[PATCH] (19/22) task_thread_info - part 3/4
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a) in smp_lock.h #include of sched.h and spinlock.h moved under
#ifdef CONFIG_LOCK_KERNEL.
b) interrupt.h now explicitly pulls sched.h (not via smp_lock.h from
hardirq.h as it used to)
c) in two more places we need changes to compensate for (a) - one place in
arch/sparc needs string.h now and hardirq.h needs forward declaration of
task_struct and direct include of thread_info.h.
d) thread_info-related helpers in sched.h and thread_info.h put under
ifndef __HAVE_THREAD_FUNCTIONS. Obviously safe.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
----
diff -urN RC13-rc7-other-helpers/arch/sparc/lib/bitext.c RC13-rc7-includes/arch/sparc/lib/bitext.c
--- RC13-rc7-other-helpers/arch/sparc/lib/bitext.c 2005-06-17 15:48:29.000000000 -0400
+++ RC13-rc7-includes/arch/sparc/lib/bitext.c 2005-08-25 00:54:18.000000000 -0400
@@ -10,6 +10,7 @@
*/

#include <linux/smp_lock.h>
+#include <linux/string.h>
#include <linux/bitops.h>

#include <asm/bitext.h>
diff -urN RC13-rc7-other-helpers/include/linux/hardirq.h RC13-rc7-includes/include/linux/hardirq.h
--- RC13-rc7-other-helpers/include/linux/hardirq.h 2005-08-10 10:37:54.000000000 -0400
+++ RC13-rc7-includes/include/linux/hardirq.h 2005-08-25 00:54:18.000000000 -0400
@@ -4,6 +4,7 @@
#include <linux/config.h>
#include <linux/preempt.h>
#include <linux/smp_lock.h>
+#include <linux/thread_info.h>
#include <asm/hardirq.h>
#include <asm/system.h>

@@ -90,6 +91,8 @@
#define nmi_enter() irq_enter()
#define nmi_exit() sub_preempt_count(HARDIRQ_OFFSET)

+struct task_struct;
+
#ifndef CONFIG_VIRT_CPU_ACCOUNTING
static inline void account_user_vtime(struct task_struct *tsk)
{
diff -urN RC13-rc7-other-helpers/include/linux/interrupt.h RC13-rc7-includes/include/linux/interrupt.h
--- RC13-rc7-other-helpers/include/linux/interrupt.h 2005-06-17 15:48:29.000000000 -0400
+++ RC13-rc7-includes/include/linux/interrupt.h 2005-08-25 00:54:18.000000000 -0400
@@ -12,6 +12,7 @@
#include <asm/atomic.h>
#include <asm/ptrace.h>
#include <asm/system.h>
+#include <linux/sched.h>

/*
* For 2.4.x compatibility, 2.4.x can use
diff -urN RC13-rc7-other-helpers/include/linux/sched.h RC13-rc7-includes/include/linux/sched.h
--- RC13-rc7-other-helpers/include/linux/sched.h 2005-08-25 00:54:17.000000000 -0400
+++ RC13-rc7-includes/include/linux/sched.h 2005-08-25 00:54:18.000000000 -0400
@@ -1136,6 +1136,8 @@
spin_unlock(&p->alloc_lock);
}

+#ifndef __HAVE_THREAD_FUNCTIONS
+
#define task_thread_info(task) (task)->thread_info

static inline void setup_thread_info(struct task_struct *p, struct thread_info *ti)
@@ -1176,6 +1178,8 @@
return test_ti_thread_flag(task_thread_info(tsk), flag);
}

+#endif
+
static inline void set_tsk_need_resched(struct task_struct *tsk)
{
set_tsk_thread_flag(tsk,TIF_NEED_RESCHED);
diff -urN RC13-rc7-other-helpers/include/linux/smp_lock.h RC13-rc7-includes/include/linux/smp_lock.h
--- RC13-rc7-other-helpers/include/linux/smp_lock.h 2005-06-17 15:48:29.000000000 -0400
+++ RC13-rc7-includes/include/linux/smp_lock.h 2005-08-25 00:54:18.000000000 -0400
@@ -2,11 +2,10 @@
#define __LINUX_SMPLOCK_H

#include <linux/config.h>
+#ifdef CONFIG_LOCK_KERNEL
#include <linux/sched.h>
#include <linux/spinlock.h>

-#ifdef CONFIG_LOCK_KERNEL
-
#define kernel_locked() (current->lock_depth >= 0)

extern int __lockfunc __reacquire_kernel_lock(void);
diff -urN RC13-rc7-other-helpers/include/linux/thread_info.h RC13-rc7-includes/include/linux/thread_info.h
--- RC13-rc7-other-helpers/include/linux/thread_info.h 2005-06-17 15:48:29.000000000 -0400
+++ RC13-rc7-includes/include/linux/thread_info.h 2005-08-25 00:54:18.000000000 -0400
@@ -22,6 +22,7 @@

#ifdef __KERNEL__

+#ifndef __HAVE_THREAD_FUNCTIONS
/*
* flag set/clear/test wrappers
* - pass TIF_xxxx constants to these functions
@@ -88,5 +89,6 @@
}

#endif
+#endif

#endif /* _LINUX_THREAD_INFO_H */
-
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