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>

37 files changed, 163 insertions, 157 deletions

diff --git a/arch/alpha/kernel/semaphore.c b/arch/alpha/kernel/semaphore.c
index 8c8aaa205eae..8d2982aa1b8d 100644
--- a/arch/alpha/kernel/semaphore.c
+++ b/arch/alpha/kernel/semaphore.c
@@ -69,7 +69,7 @@ __down_failed(struct semaphore *sem)
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down failed(%p)\n",
-	       tsk->comm, tsk->pid, sem);
+	       tsk->comm, task_pid_nr(tsk), sem);
 #endif
 
 	tsk->state = TASK_UNINTERRUPTIBLE;
@@ -98,7 +98,7 @@ __down_failed(struct semaphore *sem)
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down acquired(%p)\n",
-	       tsk->comm, tsk->pid, sem);
+	       tsk->comm, task_pid_nr(tsk), sem);
 #endif
 }
 
@@ -111,7 +111,7 @@ __down_failed_interruptible(struct semaphore *sem)
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down failed(%p)\n",
-	       tsk->comm, tsk->pid, sem);
+	       tsk->comm, task_pid_nr(tsk), sem);
 #endif
 
 	tsk->state = TASK_INTERRUPTIBLE;
@@ -139,7 +139,7 @@ __down_failed_interruptible(struct semaphore *sem)
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down %s(%p)\n",
-	       current->comm, current->pid,
+	       current->comm, task_pid_nr(current),
 	       (ret < 0 ? "interrupted" : "acquired"), sem);
 #endif
 	return ret;
@@ -168,7 +168,7 @@ down(struct semaphore *sem)
 #endif
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down(%p) <count=%d> from %p\n",
-	       current->comm, current->pid, sem,
+	       current->comm, task_pid_nr(current), sem,
 	       atomic_read(&sem->count), __builtin_return_address(0));
 #endif
 	__down(sem);
@@ -182,7 +182,7 @@ down_interruptible(struct semaphore *sem)
 #endif
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down(%p) <count=%d> from %p\n",
-	       current->comm, current->pid, sem,
+	       current->comm, task_pid_nr(current), sem,
 	       atomic_read(&sem->count), __builtin_return_address(0));
 #endif
 	return __down_interruptible(sem);
@@ -201,7 +201,7 @@ down_trylock(struct semaphore *sem)
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): down_trylock %s from %p\n",
-	       current->comm, current->pid,
+	       current->comm, task_pid_nr(current),
 	       ret ? "failed" : "acquired",
 	       __builtin_return_address(0));
 #endif
@@ -217,7 +217,7 @@ up(struct semaphore *sem)
 #endif
 #ifdef CONFIG_DEBUG_SEMAPHORE
 	printk("%s(%d): up(%p) <count=%d> from %p\n",
-	       current->comm, current->pid, sem,
+	       current->comm, task_pid_nr(current), sem,
 	       atomic_read(&sem->count), __builtin_return_address(0));
 #endif
 	__up(sem);
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index ec0f05e0d8ff..2dc7f9fed213 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -182,7 +182,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
 #ifdef CONFIG_SMP
 	printk("CPU %d ", hard_smp_processor_id());
 #endif
-	printk("%s(%d): %s %ld\n", current->comm, current->pid, str, err);
+	printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);
 	dik_show_regs(regs, r9_15);
 	add_taint(TAINT_DIE);
 	dik_show_trace((unsigned long *)(regs+1));
@@ -646,7 +646,7 @@ got_exception:
 	lock_kernel();
 
 	printk("%s(%d): unhandled unaligned exception\n",
-	       current->comm, current->pid);
+	       current->comm, task_pid_nr(current));
 
 	printk("pc = [<%016lx>]  ra = [<%016lx>]  ps = %04lx\n",
 	       pc, una_reg(26), regs->ps);
@@ -786,7 +786,7 @@ do_entUnaUser(void __user * va, unsigned long opcode,
 		}
 		if (++cnt < 5) {
 			printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
-			       current->comm, current->pid,
+			       current->comm, task_pid_nr(current),
 			       regs->pc - 4, va, opcode, reg);
 		}
 		last_time = jiffies;
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index e0593e606140..4829f96585b1 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -194,7 +194,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		goto survive;
 	}
 	printk(KERN_ALERT "VM: killing process %s(%d)\n",
-	       current->comm, current->pid);
+	       current->comm, task_pid_nr(current));
 	if (!user_mode(regs))
 		goto no_context;
 	do_group_exit(SIGKILL);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 93b7f8e22dcc..4f1a03124a74 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -265,7 +265,7 @@ void __show_regs(struct pt_regs *regs)
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
-	printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
+	printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
 	__show_regs(regs);
 	__backtrace();
 }
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 5feee722ea98..4b05dc5c1023 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -382,16 +382,16 @@ static void clear_breakpoint(struct task_struct *task, struct debug_entry *bp)
 
 		if (ret != 2 || old_insn.thumb != BREAKINST_THUMB)
 			printk(KERN_ERR "%s:%d: corrupted Thumb breakpoint at "
-				"0x%08lx (0x%04x)\n", task->comm, task->pid,
-				addr, old_insn.thumb);
+				"0x%08lx (0x%04x)\n", task->comm,
+				task_pid_nr(task), addr, old_insn.thumb);
 	} else {
 		ret = swap_insn(task, addr & ~3, &old_insn.arm,
 				&bp->insn.arm, 4);
 
 		if (ret != 4 || old_insn.arm != BREAKINST_ARM)
 			printk(KERN_ERR "%s:%d: corrupted ARM breakpoint at "
-				"0x%08lx (0x%08x)\n", task->comm, task->pid,
-				addr, old_insn.arm);
+				"0x%08lx (0x%08x)\n", task->comm,
+				task_pid_nr(task), addr, old_insn.arm);
 	}
 }
 
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 8ad47619c079..4764bd9ccee8 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -223,7 +223,7 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p
 	print_modules();
 	__show_regs(regs);
 	printk("Process %s (pid: %d, stack limit = 0x%p)\n",
-		tsk->comm, tsk->pid, thread + 1);
+		tsk->comm, task_pid_nr(tsk), thread + 1);
 
 	if (!user_mode(regs) || in_interrupt()) {
 		dump_mem("Stack: ", regs->ARM_sp,
@@ -337,7 +337,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_UNDEFINED) {
 		printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",
-			current->comm, current->pid, pc);
+			current->comm, task_pid_nr(current), pc);
 		dump_instr(regs);
 	}
 #endif
@@ -388,7 +388,7 @@ static int bad_syscall(int n, struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_SYSCALL) {
 		printk(KERN_ERR "[%d] %s: obsolete system call %08x.\n",
-			current->pid, current->comm, n);
+			task_pid_nr(current), current->comm, n);
 		dump_instr(regs);
 	}
 #endif
@@ -565,7 +565,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 	 */
 	if (user_debug & UDBG_SYSCALL) {
 		printk("[%d] %s: arm syscall %d\n",
-		       current->pid, current->comm, no);
+		       task_pid_nr(current), current->comm, no);
 		dump_instr(regs);
 		if (user_mode(regs)) {
 			__show_regs(regs);
@@ -642,7 +642,7 @@ baddataabort(int code, unsigned long instr, struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_BADABORT) {
 		printk(KERN_ERR "[%d] %s: bad data abort: code %d instr 0x%08lx\n",
-			current->pid, current->comm, code, instr);
+			task_pid_nr(current), current->comm, code, instr);
 		dump_instr(regs);
 		show_pte(current->mm, addr);
 	}
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 074b7cb07743..e162cca5917f 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -757,7 +757,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	if (ai_usermode & 1)
 		printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*lx "
 		       "Address=0x%08lx FSR 0x%03x\n", current->comm,
-			current->pid, instrptr,
+			task_pid_nr(current), instrptr,
 		        thumb_mode(regs) ? 4 : 8,
 		        thumb_mode(regs) ? tinstr : instr,
 		        addr, fsr);
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index a3405b3c1eef..d025a22eb225 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -773,7 +773,7 @@ emulate_mmap (struct file *file, unsigned long start, unsigned long len, int pro
 			if (flags & MAP_SHARED)
 				printk(KERN_INFO
 				       "%s(%d): emulate_mmap() can't share head (addr=0x%lx)\n",
-				       current->comm, current->pid, start);
+				       current->comm, task_pid_nr(current), start);
 			ret = mmap_subpage(file, start, min(PAGE_ALIGN(start), end), prot, flags,
 					   off);
 			if (IS_ERR((void *) ret))
@@ -786,7 +786,7 @@ emulate_mmap (struct file *file, unsigned long start, unsigned long len, int pro
 			if (flags & MAP_SHARED)
 				printk(KERN_INFO
 				       "%s(%d): emulate_mmap() can't share tail (end=0x%lx)\n",
-				       current->comm, current->pid, end);
+				       current->comm, task_pid_nr(current), end);
 			ret = mmap_subpage(file, max(start, PAGE_START(end)), end, prot, flags,
 					   (off + len) - offset_in_page(end));
 			if (IS_ERR((void *) ret))
@@ -816,7 +816,7 @@ emulate_mmap (struct file *file, unsigned long start, unsigned long len, int pro
 
 	if ((flags & MAP_SHARED) && !is_congruent)
 		printk(KERN_INFO "%s(%d): emulate_mmap() can't share contents of incongruent mmap "
-		       "(addr=0x%lx,off=0x%llx)\n", current->comm, current->pid, start, off);
+		       "(addr=0x%lx,off=0x%llx)\n", current->comm, task_pid_nr(current), start, off);
 
 	DBG("mmap_body: mapping [0x%lx-0x%lx) %s with poff 0x%llx\n", pstart, pend,
 	    is_congruent ? "congruent" : "not congruent", poff);
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index f55fa07849c4..59169bf7145f 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -158,14 +158,14 @@
  */
 #define PROTECT_CTX(c, f) \
 	do {  \
-		DPRINT(("spinlock_irq_save ctx %p by [%d]\n", c, current->pid)); \
+		DPRINT(("spinlock_irq_save ctx %p by [%d]\n", c, task_pid_nr(current))); \
 		spin_lock_irqsave(&(c)->ctx_lock, f); \
-		DPRINT(("spinlocked ctx %p  by [%d]\n", c, current->pid)); \
+		DPRINT(("spinlocked ctx %p  by [%d]\n", c, task_pid_nr(current))); \
 	} while(0)
 
 #define UNPROTECT_CTX(c, f) \
 	do { \
-		DPRINT(("spinlock_irq_restore ctx %p by [%d]\n", c, current->pid)); \
+		DPRINT(("spinlock_irq_restore ctx %p by [%d]\n", c, task_pid_nr(current))); \
 		spin_unlock_irqrestore(&(c)->ctx_lock, f); \
 	} while(0)
 
@@ -227,12 +227,12 @@
 #ifdef PFM_DEBUGGING
 #define DPRINT(a) \
 	do { \
-		if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), current->pid); printk a; } \
+		if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \
 	} while (0)
 
 #define DPRINT_ovfl(a) \
 	do { \
-		if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), current->pid); printk a; } \
+		if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d [%d] ", __FUNCTION__, __LINE__, smp_processor_id(), task_pid_nr(current)); printk a; } \
 	} while (0)
 #endif
 
@@ -913,7 +913,7 @@ pfm_mask_monitoring(struct task_struct *task)
 	unsigned long mask, val, ovfl_mask;
 	int i;
 
-	DPRINT_ovfl(("masking monitoring for [%d]\n", task->pid));
+	DPRINT_ovfl(("masking monitoring for [%d]\n", task_pid_nr(task)));
 
 	ovfl_mask = pmu_conf->ovfl_val;
 	/*
@@ -992,12 +992,12 @@ pfm_restore_monitoring(struct task_struct *task)
 	ovfl_mask = pmu_conf->ovfl_val;
 
 	if (task != current) {
-		printk(KERN_ERR "perfmon.%d: invalid task[%d] current[%d]\n", __LINE__, task->pid, current->pid);
+		printk(KERN_ERR "perfmon.%d: invalid task[%d] current[%d]\n", __LINE__, task_pid_nr(task), task_pid_nr(current));
 		return;
 	}
 	if (ctx->ctx_state != PFM_CTX_MASKED) {
 		printk(KERN_ERR "perfmon.%d: task[%d] current[%d] invalid state=%d\n", __LINE__,
-			task->pid, current->pid, ctx->ctx_state);
+			task_pid_nr(task), task_pid_nr(current), ctx->ctx_state);
 		return;
 	}
 	psr = pfm_get_psr();
@@ -1051,7 +1051,8 @@ pfm_restore_monitoring(struct task_struct *task)
 		if ((mask & 0x1) == 0UL) continue;
 		ctx->th_pmcs[i] = ctx->ctx_pmcs[i];
 		ia64_set_pmc(i, ctx->th_pmcs[i]);
-		DPRINT(("[%d] pmc[%d]=0x%lx\n", task->pid, i, ctx->th_pmcs[i]));
+		DPRINT(("[%d] pmc[%d]=0x%lx\n",
+					task_pid_nr(task), i, ctx->th_pmcs[i]));
 	}
 	ia64_srlz_d();
 
@@ -1370,7 +1371,7 @@ pfm_reserve_session(struct task_struct *task, int is_syswide, unsigned int cpu)
 
 error_conflict:
 	DPRINT(("system wide not possible, conflicting session [%d] on CPU%d\n",
-  		pfm_sessions.pfs_sys_session[cpu]->pid,
+  		task_pid_nr(pfm_sessions.pfs_sys_session[cpu]),
 		cpu));
 abort:
 	UNLOCK_PFS(flags);
@@ -1442,7 +1443,7 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz
 
 	/* sanity checks */
 	if (task->mm == NULL || size == 0UL || vaddr == NULL) {
-		printk(KERN_ERR "perfmon: pfm_remove_smpl_mapping [%d] invalid context mm=%p\n", task->pid, task->mm);
+		printk(KERN_ERR "perfmon: pfm_remove_smpl_mapping [%d] invalid context mm=%p\n", task_pid_nr(task), task->mm);
 		return -EINVAL;
 	}
 
@@ -1459,7 +1460,7 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz
 
 	up_write(&task->mm->mmap_sem);
 	if (r !=0) {
-		printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task->pid, vaddr, size);
+		printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size);
 	}
 
 	DPRINT(("do_unmap(%p, %lu)=%d\n", vaddr, size, r));
@@ -1501,7 +1502,7 @@ pfm_free_smpl_buffer(pfm_context_t *ctx)
 	return 0;
 
 invalid_free:
-	printk(KERN_ERR "perfmon: pfm_free_smpl_buffer [%d] no buffer\n", current->pid);
+	printk(KERN_ERR "perfmon: pfm_free_smpl_buffer [%d] no buffer\n", task_pid_nr(current));
 	return -EINVAL;
 }
 #endif
@@ -1547,13 +1548,13 @@ pfm_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
 	unsigned long flags;
   	DECLARE_WAITQUEUE(wait, current);
 	if (PFM_IS_FILE(filp) == 0) {
-		printk(KERN_ERR "perfmon: pfm_poll: bad magic [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_poll: bad magic [%d]\n", task_pid_nr(current));
 		return -EINVAL;
 	}
 
 	ctx = (pfm_context_t *)filp->private_data;
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: pfm_read: NULL ctx [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_read: NULL ctx [%d]\n", task_pid_nr(current));
 		return -EINVAL;
 	}
 
@@ -1607,7 +1608,7 @@ pfm_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
 
 		PROTECT_CTX(ctx, flags);
 	}
-	DPRINT(("[%d] back to running ret=%ld\n", current->pid, ret));
+	DPRINT(("[%d] back to running ret=%ld\n", task_pid_nr(current), ret));
   	set_current_state(TASK_RUNNING);
 	remove_wait_queue(&ctx->ctx_msgq_wait, &wait);
 
@@ -1616,7 +1617,7 @@ pfm_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
 	ret = -EINVAL;
 	msg = pfm_get_next_msg(ctx);
 	if (msg == NULL) {
-		printk(KERN_ERR "perfmon: pfm_read no msg for ctx=%p [%d]\n", ctx, current->pid);
+		printk(KERN_ERR "perfmon: pfm_read no msg for ctx=%p [%d]\n", ctx, task_pid_nr(current));
 		goto abort_locked;
 	}
 
@@ -1647,13 +1648,13 @@ pfm_poll(struct file *filp, poll_table * wait)
 	unsigned int mask = 0;
 
 	if (PFM_IS_FILE(filp) == 0) {
-		printk(KERN_ERR "perfmon: pfm_poll: bad magic [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_poll: bad magic [%d]\n", task_pid_nr(current));
 		return 0;
 	}
 
 	ctx = (pfm_context_t *)filp->private_data;
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: pfm_poll: NULL ctx [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_poll: NULL ctx [%d]\n", task_pid_nr(current));
 		return 0;
 	}
 
@@ -1692,7 +1693,7 @@ pfm_do_fasync(int fd, struct file *filp, pfm_context_t *ctx, int on)
 	ret = fasync_helper (fd, filp, on, &ctx->ctx_async_queue);
 
 	DPRINT(("pfm_fasync called by [%d] on ctx_fd=%d on=%d async_queue=%p ret=%d\n",
-		current->pid,
+		task_pid_nr(current),
 		fd,
 		on,
 		ctx->ctx_async_queue, ret));
@@ -1707,13 +1708,13 @@ pfm_fasync(int fd, struct file *filp, int on)
 	int ret;
 
 	if (PFM_IS_FILE(filp) == 0) {
-		printk(KERN_ERR "perfmon: pfm_fasync bad magic [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_fasync bad magic [%d]\n", task_pid_nr(current));
 		return -EBADF;
 	}
 
 	ctx = (pfm_context_t *)filp->private_data;
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: pfm_fasync NULL ctx [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_fasync NULL ctx [%d]\n", task_pid_nr(current));
 		return -EBADF;
 	}
 	/*
@@ -1759,7 +1760,7 @@ pfm_syswide_force_stop(void *info)
 	if (owner != ctx->ctx_task) {
 		printk(KERN_ERR "perfmon: pfm_syswide_force_stop CPU%d unexpected owner [%d] instead of [%d]\n",
 			smp_processor_id(),
-			owner->pid, ctx->ctx_task->pid);
+			task_pid_nr(owner), task_pid_nr(ctx->ctx_task));
 		return;
 	}
 	if (GET_PMU_CTX() != ctx) {
@@ -1769,7 +1770,7 @@ pfm_syswide_force_stop(void *info)
 		return;
 	}
 
-	DPRINT(("on CPU%d forcing system wide stop for [%d]\n", smp_processor_id(), ctx->ctx_task->pid));	
+	DPRINT(("on CPU%d forcing system wide stop for [%d]\n", smp_processor_id(), task_pid_nr(ctx->ctx_task)));
 	/*
 	 * the context is already protected in pfm_close(), we simply
 	 * need to mask interrupts to avoid a PMU interrupt race on
@@ -1821,7 +1822,7 @@ pfm_flush(struct file *filp, fl_owner_t id)
 
 	ctx = (pfm_context_t *)filp->private_data;
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: pfm_flush: NULL ctx [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_flush: NULL ctx [%d]\n", task_pid_nr(current));
 		return -EBADF;
 	}
 
@@ -1969,7 +1970,7 @@ pfm_close(struct inode *inode, struct file *filp)
 	
 	ctx = (pfm_context_t *)filp->private_data;
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: pfm_close: NULL ctx [%d]\n", current->pid);
+		printk(KERN_ERR "perfmon: pfm_close: NULL ctx [%d]\n", task_pid_nr(current));
 		return -EBADF;
 	}
 
@@ -2066,7 +2067,7 @@ pfm_close(struct inode *inode, struct file *filp)
 	 	 */
 		ctx->ctx_state = PFM_CTX_ZOMBIE;
 
-		DPRINT(("zombie ctx for [%d]\n", task->pid));
+		DPRINT(("zombie ctx for [%d]\n", task_pid_nr(task)));
 		/*
 		 * cannot free the context on the spot. deferred until
 		 * the task notices the ZOMBIE state
@@ -2472,7 +2473,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t
 	/* invoke and lock buffer format, if found */
 	fmt = pfm_find_buffer_fmt(arg->ctx_smpl_buf_id);
 	if (fmt == NULL) {
-		DPRINT(("[%d] cannot find buffer format\n", task->pid));
+		DPRINT(("[%d] cannot find buffer format\n", task_pid_nr(task)));
 		return -EINVAL;
 	}
 
@@ -2483,7 +2484,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t
 
 	ret = pfm_buf_fmt_validate(fmt, task, ctx_flags, cpu, fmt_arg);
 
-	DPRINT(("[%d] after validate(0x%x,%d,%p)=%d\n", task->pid, ctx_flags, cpu, fmt_arg, ret));
+	DPRINT(("[%d] after validate(0x%x,%d,%p)=%d\n", task_pid_nr(task), ctx_flags, cpu, fmt_arg, ret));
 
 	if (ret) goto error;
 
@@ -2605,23 +2606,23 @@ pfm_task_incompatible(pfm_context_t *ctx, struct task_struct *task)
 	 * no kernel task or task not owner by caller
 	 */
 	if (task->mm == NULL) {
-		DPRINT(("task [%d] has not memory context (kernel thread)\n", task->pid));
+		DPRINT(("task [%d] has not memory context (kernel thread)\n", task_pid_nr(task)));
 		return -EPERM;
 	}
 	if (pfm_bad_permissions(task)) {
-		DPRINT(("no permission to attach to  [%d]\n", task->pid));
+		DPRINT(("no permission to attach to  [%d]\n", task_pid_nr(task)));
 		return -EPERM;
 	}
 	/*
 	 * cannot block in self-monitoring mode
 	 */
 	if (CTX_OVFL_NOBLOCK(ctx) == 0 && task == current) {
-		DPRINT(("cannot load a blocking context on self for [%d]\n", task->pid));
+		DPRINT(("cannot load a blocking context on self for [%d]\n", task_pid_nr(task)));
 		return -EINVAL;
 	}
 
 	if (task->exit_state == EXIT_ZOMBIE) {
-		DPRINT(("cannot attach to  zombie task [%d]\n", task->pid));
+		DPRINT(("cannot attach to  zombie task [%d]\n", task_pid_nr(task)));
 		return -EBUSY;
 	}
 
@@ -2631,7 +2632,7 @@ pfm_task_incompatible(pfm_context_t *ctx, struct task_struct *task)
 	if (task == current) return 0;
 
 	if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) {
-		DPRINT(("cannot attach to non-stopped task [%d] state=%ld\n", task->pid, task->state));
+		DPRINT(("cannot attach to non-stopped task [%d] state=%ld\n", task_pid_nr(task), task->state));
 		return -EBUSY;
 	}
 	/*
@@ -3512,7 +3513,7 @@ pfm_use_debug_registers(struct task_struct *task)
 
 	if (pmu_conf->use_rr_dbregs == 0) return 0;
 
-	DPRINT(("called for [%d]\n", task->pid));
+	DPRINT(("called for [%d]\n", task_pid_nr(task)));
 
 	/*
 	 * do it only once
@@ -3543,7 +3544,7 @@ pfm_use_debug_registers(struct task_struct *task)
 	DPRINT(("ptrace_use_dbregs=%u  sys_use_dbregs=%u by [%d] ret = %d\n",
 		  pfm_sessions.pfs_ptrace_use_dbregs,
 		  pfm_sessions.pfs_sys_use_dbregs,
-		  task->pid, ret));
+		  task_pid_nr(task), ret));
 
 	UNLOCK_PFS(flags);
 
@@ -3568,7 +3569,7 @@ pfm_release_debug_registers(struct task_struct *task)
 
 	LOCK_PFS(flags);
 	if (pfm_sessions.pfs_ptrace_use_dbregs == 0) {
-		printk(KERN_ERR "perfmon: invalid release for [%d] ptrace_use_dbregs=0\n", task->pid);
+		printk(KERN_ERR "perfmon: invalid release for [%d] ptrace_use_dbregs=0\n", task_pid_nr(task));
 		ret = -1;
 	}  else {
 		pfm_sessions.pfs_ptrace_use_dbregs--;
@@ -3620,7 +3621,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 
 	/* sanity check */
 	if (unlikely(task == NULL)) {
-		printk(KERN_ERR "perfmon: [%d] pfm_restart no task\n", current->pid);
+		printk(KERN_ERR "perfmon: [%d] pfm_restart no task\n", task_pid_nr(current));
 		return -EINVAL;
 	}
 
@@ -3629,7 +3630,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 		fmt = ctx->ctx_buf_fmt;
 
 		DPRINT(("restarting self %d ovfl=0x%lx\n",
-			task->pid,
+			task_pid_nr(task),
 			ctx->ctx_ovfl_regs[0]));
 
 		if (CTX_HAS_SMPL(ctx)) {
@@ -3653,11 +3654,11 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 				pfm_reset_regs(ctx, ctx->ctx_ovfl_regs, PFM_PMD_LONG_RESET);
 
 			if (rst_ctrl.bits.mask_monitoring == 0) {
-				DPRINT(("resuming monitoring for [%d]\n", task->pid));
+				DPRINT(("resuming monitoring for [%d]\n", task_pid_nr(task)));
 
 				if (state == PFM_CTX_MASKED) pfm_restore_monitoring(task);
 			} else {
-				DPRINT(("keeping monitoring stopped for [%d]\n", task->pid));
+				DPRINT(("keeping monitoring stopped for [%d]\n", task_pid_nr(task)));
 
 				// cannot use pfm_stop_monitoring(task, regs);
 			}
@@ -3714,10 +3715,10 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 	 * "self-monitoring".
 	 */
 	if (CTX_OVFL_NOBLOCK(ctx) == 0 && state == PFM_CTX_MASKED) {
-		DPRINT(("unblocking [%d] \n", task->pid));
+		DPRINT(("unblocking [%d] \n", task_pid_nr(task)));
 		complete(&ctx->ctx_restart_done);
 	} else {
-		DPRINT(("[%d] armed exit trap\n", task->pid));
+		DPRINT(("[%d] armed exit trap\n", task_pid_nr(task)));
 
 		ctx->ctx_fl_trap_reason = PFM_TRAP_REASON_RESET;
 
@@ -3805,7 +3806,7 @@ pfm_write_ibr_dbr(int mode, pfm_context_t *ctx, void *arg, int count, struct pt_
 	 * don't bother if we are loaded and task is being debugged
 	 */
 	if (is_loaded && (thread->flags & IA64_THREAD_DBG_VALID) != 0) {
-		DPRINT(("debug registers already in use for [%d]\n", task->pid));
+		DPRINT(("debug registers already in use for [%d]\n", task_pid_nr(task)));
 		return -EBUSY;
 	}
 
@@ -3846,7 +3847,7 @@ pfm_write_ibr_dbr(int mode, pfm_context_t *ctx, void *arg, int count, struct pt_
 	 * is shared by all processes running on it
  	 */
 	if (first_time && can_access_pmu) {
-		DPRINT(("[%d] clearing ibrs, dbrs\n", task->pid));
+		DPRINT(("[%d] clearing ibrs, dbrs\n", task_pid_nr(task)));
 		for (i=0; i < pmu_conf->num_ibrs; i++) {
 			ia64_set_ibr(i, 0UL);
 			ia64_dv_serialize_instruction();
@@ -4035,7 +4036,7 @@ pfm_stop(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 		return -EBUSY;
 	}
 	DPRINT(("task [%d] ctx_state=%d is_system=%d\n",
-		PFM_CTX_TASK(ctx)->pid,
+		task_pid_nr(PFM_CTX_TASK(ctx)),
 		state,
 		is_system));
 	/*
@@ -4093,7 +4094,7 @@ pfm_stop(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 		 * monitoring disabled in kernel at next reschedule
 		 */
 		ctx->ctx_saved_psr_up = 0;
-		DPRINT(("task=[%d]\n", task->pid));
+		DPRINT(("task=[%d]\n", task_pid_nr(task)));
 	}
 	return 0;
 }
@@ -4298,11 +4299,12 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 
 		if (is_system) {
 			if (pfm_sessions.pfs_ptrace_use_dbregs) {
-				DPRINT(("cannot load [%d] dbregs in use\n", task->pid));
+				DPRINT(("cannot load [%d] dbregs in use\n",
+							task_pid_nr(task)));
 				ret = -EBUSY;
 			} else {
 				pfm_sessions.pfs_sys_use_dbregs++;
-				DPRINT(("load [%d] increased sys_use_dbreg=%u\n", task->pid, pfm_sessions.pfs_sys_use_dbregs));
+				DPRINT(("load [%d] increased sys_use_dbreg=%u\n", task_pid_nr(task), pfm_sessions.pfs_sys_use_dbregs));
 				set_dbregs = 1;
 			}
 		}
@@ -4394,7 +4396,7 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 
 			/* allow user level control */
 			ia64_psr(regs)->sp = 0;
-			DPRINT(("clearing psr.sp for [%d]\n", task->pid));
+			DPRINT(("clearing psr.sp for [%d]\n", task_pid_nr(task)));
 
 			SET_LAST_CPU(ctx, smp_processor_id());
 			INC_ACTIVATION();
@@ -4429,7 +4431,7 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 		 */
 		SET_PMU_OWNER(task, ctx);
 
-		DPRINT(("context loaded on PMU for [%d]\n", task->pid));
+		DPRINT(("context loaded on PMU for [%d]\n", task_pid_nr(task)));
 	} else {
 		/*
 		 * when not current, task MUST be stopped, so this is safe
@@ -4493,7 +4495,7 @@ pfm_context_unload(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 	int prev_state, is_system;
 	int ret;
 
-	DPRINT(("ctx_state=%d task [%d]\n", ctx->ctx_state, task ? task->pid : -1));
+	DPRINT(("ctx_state=%d task [%d]\n", ctx->ctx_state, task ? task_pid_nr(task) : -1));
 
 	prev_state = ctx->ctx_state;
 	is_system  = ctx->ctx_fl_system;
@@ -4568,7 +4570,7 @@ pfm_context_unload(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 		 */
 		ia64_psr(regs)->sp = 1;
 
-		DPRINT(("setting psr.sp for [%d]\n", task->pid));
+		DPRINT(("setting psr.sp for [%d]\n", task_pid_nr(task)));
 	}
 	/*
 	 * save PMDs to context
@@ -4608,7 +4610,7 @@ pfm_context_unload(pfm_c