Use helpers to obtain task pid in printks

The task_struct->pid member is going to be deprecated, so start
using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in
the kernel.

The first thing to start with is the pid, printed to dmesg - in
this case we may safely use task_pid_nr(). Besides, printks produce
more (much more) than a half of all the explicit pid usage.

[akpm@linux-foundation.org: git-drm went and changed lots of stuff]
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 9d458504e3a6..a7e30462600f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3502,7 +3502,7 @@ EXPORT_SYMBOL(sub_preempt_count);
 static noinline void __schedule_bug(struct task_struct *prev)
 {
         printk(KERN_ERR "BUG: scheduling while atomic: %s/0x%08x/%d\n",
-                prev->comm, preempt_count(), prev->pid);
+                prev->comm, preempt_count(), task_pid_nr(prev));
         debug_show_held_locks(prev);
         if (irqs_disabled())
                 print_irqtrace_events(prev);
@@ -4865,7 +4865,8 @@ static void show_task(struct task_struct *p)
                 free = (unsigned long)n - (unsigned long)end_of_stack(p);
         }
 #endif
-        printk(KERN_CONT "%5lu %5d %6d\n", free, p->pid, p->parent->pid);
+        printk(KERN_CONT "%5lu %5d %6d\n", free,
+                task_pid_nr(p), task_pid_nr(p->parent));
 
         if (state != TASK_RUNNING)
                 show_stack(p, NULL);
@@ -5172,7 +5173,7 @@ static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p)
                         if (p->mm && printk_ratelimit())
                                 printk(KERN_INFO "process %d (%s) no "
                                        "longer affine to cpu%d\n",
-                                       p->pid, p->comm, dead_cpu);
+                               task_pid_nr(p), p->comm, dead_cpu);
                 }
         } while (!__migrate_task_irq(p, dead_cpu, dest_cpu));
 }