Use helpers to obtain task pid in printks (arch code)

One of the easiest things to isolate is the pid printed in kernel log.
There was a patch, that made this for arch-independent code, this one makes
so for arch/xxx files.

It took some time to cross-compile it, but hopefully these are all the
printks in arch code.

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/sparc/kernel/ptrace.c

@@ -155,7 +155,7 @@ static inline void read_sunos_user(struct pt_regs *regs, unsigned long offset,
 		/* Rest of them are completely unsupported. */
 	default:
 		printk("%s [%d]: Wants to read user offset %ld\n",
-		       current->comm, current->pid, offset);
+		       current->comm, task_pid_nr(current), offset);
 		pt_error_return(regs, EIO);
 		return;
 	}
@@ -222,7 +222,7 @@ static inline void write_sunos_user(struct pt_regs *regs, unsigned long offset,
 		/* Rest of them are completely unsupported or "no-touch". */
 	default:
 		printk("%s [%d]: Wants to write user offset %ld\n",
-		       current->comm, current->pid, offset);
+		       current->comm, task_pid_nr(current), offset);
 		goto failure;
 	}
 success:

arch/sparc/kernel/sys_sparc.c

@@ -357,7 +357,7 @@ c_sys_nis_syscall (struct pt_regs *regs)
 	if (count++ > 5)
 		return -ENOSYS;
 	printk ("%s[%d]: Unimplemented SPARC system call %d\n",
-		current->comm, current->pid, (int)regs->u_regs[1]);
+		current->comm, task_pid_nr(current), (int)regs->u_regs[1]);
 #ifdef DEBUG_UNIMP_SYSCALL	
 	show_regs (regs);
 #endif

arch/sparc/kernel/traps.c

@@ -38,7 +38,7 @@ struct trap_trace_entry trapbuf[1024];
 
 void syscall_trace_entry(struct pt_regs *regs)
 {
-	printk("%s[%d]: ", current->comm, current->pid);
+	printk("%s[%d]: ", current->comm, task_pid_nr(current));
 	printk("scall<%d> (could be %d)\n", (int) regs->u_regs[UREG_G1],
 	       (int) regs->u_regs[UREG_I0]);
 }
@@ -99,7 +99,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 "              /_| \\__/ |_\\\n"
 "                 \\__U_/\n");
 
-	printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter);
+	printk("%s(%d): %s [#%d]\n", current->comm, task_pid_nr(current), str, ++die_counter);
 	show_regs(regs);
 	add_taint(TAINT_DIE);