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>

6 files changed, 97 insertions, 92 deletions

diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index a3405b3..d025a22 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 f55fa07..59169bf7 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_context_t *ctx, void *arg, int count, struct pt_regs *reg
 	ctx->ctx_fl_can_restart  = 0;
 	ctx->ctx_fl_going_zombie = 0;
 
-	DPRINT(("disconnected [%d] from context\n", task->pid));
+	DPRINT(("disconnected [%d] from context\n", task_pid_nr(task)));
 
 	return 0;
 }
@@ -4631,7 +4633,7 @@ pfm_exit_thread(struct task_struct *task)
 
 	PROTECT_CTX(ctx, flags);
 
-	DPRINT(("state=%d task [%d]\n", ctx->ctx_state, task->pid));
+	DPRINT(("state=%d task [%d]\n", ctx->ctx_state, task_pid_nr(task)));
 
 	state = ctx->ctx_state;
 	switch(state) {
@@ -4640,13 +4642,13 @@ pfm_exit_thread(struct task_struct *task)
 	 		 * only comes to this function if pfm_context is not NULL, i.e., cannot
 			 * be in unloaded state
 	 		 */
-			printk(KERN_ERR "perfmon: pfm_exit_thread [%d] ctx unloaded\n", task->pid);
+			printk(KERN_ERR "perfmon: pfm_exit_thread [%d] ctx unloaded\n", task_pid_nr(task));
 			break;
 		case PFM_CTX_LOADED:
 		case PFM_CTX_MASKED:
 			ret = pfm_context_unload(ctx, NULL, 0, regs);
 			if (ret) {
-				printk(KERN_ERR "perfmon: pfm_exit_thread [%d] state=%d unload failed %d\n", task->pid, state, ret);
+				printk(KERN_ERR "perfmon: pfm_exit_thread [%d] state=%d unload failed %d\n", task_pid_nr(task), state, ret);
 			}
 			DPRINT(("ctx unloaded for current state was %d\n", state));
 
@@ -4655,12 +4657,12 @@ pfm_exit_thread(struct task_struct *task)
 		case PFM_CTX_ZOMBIE:
 			ret = pfm_context_unload(ctx, NULL, 0, regs);
 			if (ret) {
-				printk(KERN_ERR "perfmon: pfm_exit_thread [%d] state=%d unload failed %d\n", task->pid, state, ret);
+				printk(KERN_ERR "perfmon: pfm_exit_thread [%d] state=%d unload failed %d\n", task_pid_nr(task), state, ret);
 			}
 			free_ok = 1;
 			break;
 		default:
-			printk(KERN_ERR "perfmon: pfm_exit_thread [%d] unexpected state=%d\n", task->pid, state);
+			printk(KERN_ERR "perfmon: pfm_exit_thread [%d] unexpected state=%d\n", task_pid_nr(task), state);
 			break;
 	}
 	UNPROTECT_CTX(ctx, flags);
@@ -4744,7 +4746,7 @@ recheck:
 	DPRINT(("context %d state=%d [%d] task_state=%ld must_stop=%d\n",
 		ctx->ctx_fd,
 		state,
-		task->pid,
+		task_pid_nr(task),
 		task->state, PFM_CMD_STOPPED(cmd)));
 
 	/*
@@ -4791,7 +4793,7 @@ recheck:
 	 */
 	if (PFM_CMD_STOPPED(cmd)) {
 		if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) {
-			DPRINT(("[%d] task not in stopped state\n", task->pid));
+			DPRINT(("[%d] task not in stopped state\n", task_pid_nr(task)));
 			return -EBUSY;
 		}
 		/*
@@ -4884,7 +4886,7 @@ restart_args:
 	 * limit abuse to min page size
 	 */
 	if (unlikely(sz > PFM_MAX_ARGSIZE)) {
-		printk(KERN_ERR "perfmon: [%d] argument too big %lu\n", current->pid, sz);
+		printk(KERN_ERR "perfmon: [%d] argument too big %lu\n", task_pid_nr(current), sz);
 		return -E2BIG;
 	}
 
@@ -5031,11 +5033,11 @@ pfm_context_force_terminate(pfm_context_t *ctx, struct pt_regs *regs)
 {
 	int ret;
 
-	DPRINT(("entering for [%d]\n", current->pid));
+	DPRINT(("entering for [%d]\n", task_pid_nr(current)));
 
 	ret = pfm_context_unload(ctx, NULL, 0, regs);
 	if (ret) {
-		printk(KERN_ERR "pfm_context_force_terminate: [%d] unloaded failed with %d\n", current->pid, ret);
+		printk(KERN_ERR "pfm_context_force_terminate: [%d] unloaded failed with %d\n", task_pid_nr(current), ret);
 	}
 
 	/*
@@ -5072,7 +5074,7 @@ pfm_handle_work(void)
 
 	ctx = PFM_GET_CTX(current);
 	if (ctx == NULL) {
-		printk(KERN_ERR "perfmon: [%d] has no PFM context\n", current->pid);
+		printk(KERN_ERR "perfmon: [%d] has no PFM context\n", task_pid_nr(current));
 		return;
 	}
 
@@ -5269,7 +5271,7 @@ pfm_overflow_handler(struct task_struct *task, pfm_context_t *ctx, u64 pmc0, str
 	DPRINT_ovfl(("pmc0=0x%lx pid=%d iip=0x%lx, %s "
 		     "used_pmds=0x%lx\n",
 			pmc0,
-			task ? task->pid: -1,
+			task ? task_pid_nr(task): -1,
 			(regs ? regs->cr_iip : 0),
 			CTX_OVFL_NOBLOCK(ctx) ? "nonblocking" : "blocking",
 			ctx->ctx_used_pmds[0]));
@@ -5458,7 +5460,7 @@ pfm_overflow_handler(struct task_struct *task, pfm_context_t *ctx, u64 pmc0, str
 	}
 
 	DPRINT_ovfl(("owner [%d] pending=%ld reason=%u ovfl_pmds=0x%lx ovfl_notify=0x%lx masked=%d\n",
-			GET_PMU_OWNER() ? GET_PMU_OWNER()->pid : -1,
+			GET_PMU_OWNER() ? task_pid_nr(GET_PMU_OWNER()) : -1,
 			PFM_GET_WORK_PENDING(task),
 			ctx->ctx_fl_trap_reason,
 			ovfl_pmds,
@@ -5483,7 +5485,7 @@ pfm_overflow_handler(struct task_struct *task, pfm_context_t *ctx, u64 pmc0, str
 sanity_check:
 	printk(KERN_ERR "perfmon: CPU%d overflow handler [%d] pmc0=0x%lx\n",
 			smp_processor_id(),
-			task ? task->pid : -1,
+			task ? task_pid_nr(task) : -1,
 			pmc0);
 	return;
 
@@ -5516,7 +5518,7 @@ stop_monitoring:
 	 *
 	 * Overall pretty hairy stuff....
 	 */
-	DPRINT(("ctx is zombie for [%d], converted to spurious\n", task ? task->pid: -1));
+	DPRINT(("ctx is zombie for [%d], converted to spurious\n", task ? task_pid_nr(task): -1));
 	pfm_clear_psr_up();
 	ia64_psr(regs)->up = 0;
 	ia64_psr(regs)->sp = 1;
@@ -5577,13 +5579,13 @@ pfm_do_interrupt_handler(int irq, void *arg, struct pt_regs *regs)
 
 report_spurious1:
 	printk(KERN_INFO "perfmon: spurious overflow interrupt on CPU%d: process %d has no PFM context\n",
-		this_cpu, task->pid);
+		this_cpu, task_pid_nr(task));
 	pfm_unfreeze_pmu();
 	return -1;
 report_spurious2:
 	printk(KERN_INFO "perfmon: spurious overflow interrupt on CPU%d: process %d, invalid flag\n", 
 		this_cpu, 
-		task->pid);
+		task_pid_nr(task));
 	pfm_unfreeze_pmu();
 	return -1;
 }
@@ -5870,7 +5872,8 @@ pfm_force_cleanup(pfm_context_t *ctx, struct pt_regs *regs)
 	ia64_psr(regs)->sp = 1;
 
 	if (GET_PMU_OWNER() == task) {
-		DPRINT(("cleared ownership for [%d]\n", ctx->ctx_task->pid));
+		DPRINT(("cleared ownership for [%d]\n",
+					task_pid_nr(ctx->ctx_task)));
 		SET_PMU_OWNER(NULL, NULL);
 	}
 
@@ -5882,7 +5885,7 @@ pfm_force_cleanup(pfm_context_t *ctx, struct pt_regs *regs)
 	task->thread.pfm_context  = NULL;
 	task->thread.flags       &= ~IA64_THREAD_PM_VALID;
 
-	DPRINT(("force cleanup for [%d]\n",  task->pid));
+	DPRINT(("force cleanup for [%d]\n",  task_pid_nr(task)));
 }
 
 
@@ -6426,7 +6429,7 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx)
 
 		if (PMD_IS_COUNTING(i)) {
 			DPRINT(("[%d] pmd[%d] ctx_pmd=0x%lx hw_pmd=0x%lx\n",
-				task->pid,
+				task_pid_nr(task),
 				i,
 				ctx->ctx_pmds[i].val,
 				val & ovfl_val));
@@ -6448,11 +6451,11 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx)
 			 */
 			if (pmc0 & (1UL << i)) {
 				val += 1 + ovfl_val;
-				DPRINT(("[%d] pmd[%d] overflowed\n", task->pid, i));
+				DPRINT(("[%d] pmd[%d] overflowed\n", task_pid_nr(task), i));
 			}
 		}
 
-		DPRINT(("[%d] ctx_pmd[%d]=0x%lx  pmd_val=0x%lx\n", task->pid, i, val, pmd_val));
+		DPRINT(("[%d] ctx_pmd[%d]=0x%lx  pmd_val=0x%lx\n", task_pid_nr(task), i, val, pmd_val));
 
 		if (is_self) ctx->th_pmds[i] = pmd_val;
 
@@ -6793,14 +6796,14 @@ dump_pmu_state(const char *from)
 	printk("CPU%d from %s() current [%d] iip=0x%lx %s\n", 
 		this_cpu, 
 		from, 
-		current->pid, 
+		task_pid_nr(current),
 		regs->cr_iip,
 		current->comm);
 
 	task = GET_PMU_OWNER();
 	ctx  = GET_PMU_CTX();
 
-	printk("->CPU%d owner [%d] ctx=%p\n", this_cpu, task ? task->pid : -1, ctx);
+	printk("->CPU%d owner [%d] ctx=%p\n", this_cpu, task ? task_pid_nr(task) : -1, ctx);
 
 	psr = pfm_get_psr();
 
@@ -6848,7 +6851,7 @@ pfm_inherit(struct task_struct *task, struct pt_regs *regs)
 {
 	struct thread_struct *thread;
 
-	DPRINT(("perfmon: pfm_inherit clearing state for [%d]\n", task->pid));
+	DPRINT(("perfmon: pfm_inherit clearing state for [%d]\n", task_pid_nr(task)));
 
 	thread = &task->thread;
 
diff --git a/arch/ia64/kernel/perfmon_default_smpl.c b/arch/ia64/kernel/perfmon_default_smpl.c
index ff80eab..a7af1cb 100644
--- a/arch/ia64/kernel/perfmon_default_smpl.c
+++ b/arch/ia64/kernel/perfmon_default_smpl.c
@@ -44,11 +44,11 @@ default_validate(struct task_struct *task, unsigned int flags, int cpu, void *da
 	int ret = 0;
 
 	if (data == NULL) {
-		DPRINT(("[%d] no argument passed\n", task->pid));
+		DPRINT(("[%d] no argument passed\n", task_pid_nr(task)));
 		return -EINVAL;
 	}
 
-	DPRINT(("[%d] validate flags=0x%x CPU%d\n", task->pid, flags, cpu));
+	DPRINT(("[%d] validate flags=0x%x CPU%d\n", task_pid_nr(task), flags, cpu));
 
 	/*
 	 * must hold at least the buffer header + one minimally sized entry
@@ -88,7 +88,7 @@ default_init(struct task_struct *task, void *buf, unsigned int flags, int cpu, v
 	hdr->hdr_count        = 0UL;
 
 	DPRINT(("[%d] buffer=%p buf_size=%lu hdr_size=%lu hdr_version=%u cur_offs=%lu\n",
-		task->pid,
+		task_pid_nr(task),
 		buf,
 		hdr->hdr_buf_size,
 		sizeof(*hdr),
@@ -245,7 +245,7 @@ default_restart(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, stru
 static int
 default_exit(struct task_struct *task, void *buf, struct pt_regs *regs)
 {
-	DPRINT(("[%d] exit(%p)\n", task->pid, buf));
+	DPRINT(("[%d] exit(%p)\n", task_pid_nr(task), buf));
 	return 0;
 }
 
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index c613fc0..2418289 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -105,7 +105,8 @@ show_regs (struct pt_regs *regs)
 	unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
 
 	print_modules();
-	printk("\nPid: %d, CPU %d, comm: %20s\n", current->pid, smp_processor_id(), current->comm);
+	printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current),
+			smp_processor_id(), current->comm);
 	printk("psr : %016lx ifs : %016lx ip  : [<%016lx>]    %s\n",
 	       regs->cr_ipsr, regs->cr_ifs, ip, print_tainted());
 	print_symbol("ip is at %s\n", ip);
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 3aeaf15..78d65cb 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -61,7 +61,7 @@ die (const char *str, struct pt_regs *regs, long err)
 
 	if (++die.lock_owner_depth < 3) {
 		printk("%s[%d]: %s %ld [%d]\n",
-			current->comm, current->pid, str, err, ++die_counter);
+		current->comm, task_pid_nr(current), str, err, ++die_counter);
 		(void) notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
 		show_regs(regs);
   	} else
@@ -315,7 +315,7 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr)
 				last.time = current_jiffies + 5 * HZ;
 				printk(KERN_WARNING
 		       			"%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n",
-		       			current->comm, current->pid, regs->cr_iip + ia64_psr(regs)->ri, isr);
+		       			current->comm, task_pid_nr(current), regs->cr_iip + ia64_psr(regs)->ri, isr);
 			}
 		}
 	}
@@ -453,7 +453,7 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
 		if (code == 8) {
 # ifdef CONFIG_IA64_PRINT_HAZARDS
 			printk("%s[%d]: possible hazard @ ip=%016lx (pr = %016lx)\n",
-			       current->comm, current->pid,
+			       current->comm, task_pid_nr(current),
 			       regs.cr_iip + ia64_psr(&regs)->ri, regs.pr);
 # endif
 			return;
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index fe6aa5a..2173de9 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -1340,7 +1340,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
 			size_t len;
 
 			len = sprintf(buf, "%s(%d): unaligned access to 0x%016lx, "
-				      "ip=0x%016lx\n\r", current->comm, current->pid,
+				      "ip=0x%016lx\n\r", current->comm,
+				      task_pid_nr(current),
 				      ifa, regs->cr_iip + ipsr->ri);
 			/*
 			 * Don't call tty_write_message() if we're in the kernel; we might
@@ -1363,7 +1364,7 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
 				       "administrator\n"
 				       "echo 0 > /proc/sys/kernel/ignore-"
 				       "unaligned-usertrap to re-enable\n",
-				       current->comm, current->pid);
+				       current->comm, task_pid_nr(current));
 			}
 		}
 	} else {