Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / cris / kernel / process.c

diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 9f7cad7..123451c 100644 (file)
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -1,4 +1,4 @@
-/* $Id: process.c,v 1.17 2004/04/05 13:53:48 starvik Exp $
+/* $Id: process.c,v 1.21 2005/03/04 08:16:17 starvik Exp $
  * 
  *  linux/arch/cris/kernel/process.c
  *
@@ -8,6 +8,18 @@
  *  Authors:   Bjorn Wesen (bjornw@axis.com)
  *
  *  $Log: process.c,v $
+ *  Revision 1.21  2005/03/04 08:16:17  starvik
+ *  Merge of Linux 2.6.11.
+ *
+ *  Revision 1.20  2005/01/18 05:57:22  starvik
+ *  Renamed hlt_counter to cris_hlt_counter and made it global.
+ *
+ *  Revision 1.19  2004/10/19 13:07:43  starvik
+ *  Merge of Linux 2.6.9
+ *
+ *  Revision 1.18  2004/08/16 12:37:23  starvik
+ *  Merge of Linux 2.6.8
+ *
  *  Revision 1.17  2004/04/05 13:53:48  starvik
  *  Merge of Linux 2.6.5
  *
@@ -104,6 +116,7 @@
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
 #include <asm/irq.h>
+#include <asm/system.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/fs_struct.h>
@@ -113,6 +126,7 @@
 #include <linux/user.h>
 #include <linux/elfcore.h>
 #include <linux/mqueue.h>
+#include <linux/reboot.h>
 
 //#define DEBUG
 
@@ -160,18 +174,18 @@ EXPORT_SYMBOL(init_task);
  * region by enable_hlt/disable_hlt.
  */
 
-static int hlt_counter=0;
+int cris_hlt_counter=0;
 
 void disable_hlt(void)
 {
-       hlt_counter++;
+       cris_hlt_counter++;
 }
 
 EXPORT_SYMBOL(disable_hlt);
 
 void enable_hlt(void)
 {
-       hlt_counter--;
+       cris_hlt_counter--;
 }
 
 EXPORT_SYMBOL(enable_hlt);
@@ -181,8 +195,6 @@ EXPORT_SYMBOL(enable_hlt);
  */
 void (*pm_idle)(void);
 
-extern void default_idle(void);
-
 /*
  * The idle thread. There's no useful work to be
  * done, so just try to conserve power and have a
@@ -194,27 +206,30 @@ void cpu_idle (void)
        /* endless idle loop with no priority at all */
        while (1) {
                while (!need_resched()) {
-                       void (*idle)(void) = pm_idle;
-
+                       void (*idle)(void);
+                       /*
+                        * Mark this as an RCU critical section so that
+                        * synchronize_kernel() in the unload path waits
+                        * for our completion.
+                        */
+                       idle = pm_idle;
                        if (!idle)
                                idle = default_idle;
-
                        idle();
                }
+               preempt_enable_no_resched();
                schedule();
+               preempt_disable();
        }
-
 }
 
 void hard_reset_now (void);
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
        hard_reset_now();
 }
 
-EXPORT_SYMBOL(machine_restart);
-
 /*
  * Similar to machine_power_off, but don't shut off power.  Add code
  * here to freeze the system for e.g. post-mortem debug purpose when
@@ -225,16 +240,12 @@ void machine_halt(void)
 {
 }
 
-EXPORT_SYMBOL(machine_halt);
-
 /* If or when software power-off is implemented, add code here.  */
 
 void machine_power_off(void)
 {
 }
 
-EXPORT_SYMBOL(machine_power_off);
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
@@ -245,34 +256,6 @@ void flush_thread(void)
 {
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-#if 0
-       int i;
-
-       /* changed the size calculations - should hopefully work better. lbt */
-       dump->magic = CMAGIC;
-       dump->start_code = 0;
-       dump->start_stack = regs->esp & ~(PAGE_SIZE - 1);
-       dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-       dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
-       dump->u_dsize -= dump->u_tsize;
-       dump->u_ssize = 0;
-       for (i = 0; i < 8; i++)
-               dump->u_debugreg[i] = current->debugreg[i];  
-
-       if (dump->start_stack < TASK_SIZE)
-               dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
-       dump->regs = *regs;
-
-       dump->u_fpvalid = dump_fpu (regs, &dump->i387);
-#endif 
-}
-
 /* Fill in the fpu structure for a core dump. */
 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 {