8 files changed, 145 insertions, 134 deletions

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 73ca86d03810..8e4894b205e2 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -967,7 +967,7 @@ find_memmap_space (void)
  * to use.  We can allocate partial granules only if the unavailable
  * parts exist, and are WB.
  */
-void
+unsigned long
 efi_memmap_init(unsigned long *s, unsigned long *e)
 {
         struct kern_memdesc *k, *prev = NULL;
@@ -1084,6 +1084,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e)
         /* reserve the memory we are using for kern_memmap */
         *s = (u64)kern_memmap;
         *e = (u64)++k;
+
+        return total_mem;
 }
 
 void
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_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 ff80eab83b38..a7af1cb419f9 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 c613fc0e91cc..2418289ee5ca 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/setup.c b/arch/ia64/kernel/setup.c
index c5cfcfa4c87c..cbf67f1aa291 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -208,6 +208,48 @@ static int __init register_memory(void)
 
 __initcall(register_memory);
 
+
+#ifdef CONFIG_KEXEC
+static void __init setup_crashkernel(unsigned long total, int *n)
+{
+        unsigned long long base = 0, size = 0;
+        int ret;
+
+        ret = parse_crashkernel(boot_command_line, total,
+                        &size, &base);
+        if (ret == 0 && size > 0) {
+                if (!base) {
+                        sort_regions(rsvd_region, *n);
+                        base = kdump_find_rsvd_region(size,
+                                        rsvd_region, *n);
+                }
+                if (base != ~0UL) {
+                        printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+                                        "for crashkernel (System RAM: %ldMB)\n",
+                                        (unsigned long)(size >> 20),
+                                        (unsigned long)(base >> 20),
+                                        (unsigned long)(total >> 20));
+                        rsvd_region[*n].start =
+                                (unsigned long)__va(base);
+                        rsvd_region[*n].end =
+                                (unsigned long)__va(base + size);
+                        (*n)++;
+                        crashk_res.start = base;
+                        crashk_res.end = base + size - 1;
+                }
+        }
+        efi_memmap_res.start = ia64_boot_param->efi_memmap;
+        efi_memmap_res.end = efi_memmap_res.start +
+                ia64_boot_param->efi_memmap_size;
+        boot_param_res.start = __pa(ia64_boot_param);
+        boot_param_res.end = boot_param_res.start +
+                sizeof(*ia64_boot_param);
+}
+#else
+static inline void __init setup_crashkernel(unsigned long total, int *n)
+{}
+#endif
+
 /**
  * reserve_memory - setup reserved memory areas
  *
@@ -219,6 +261,7 @@ void __init
 reserve_memory (void)
 {
         int n = 0;
+        unsigned long total_memory;
 
         /*
          * none of the entries in this table overlap
@@ -254,50 +297,11 @@ reserve_memory (void)
                 n++;
 #endif
 
-        efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
+        total_memory = efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
         n++;
 
-#ifdef CONFIG_KEXEC
-        /* crashkernel=size@offset specifies the size to reserve for a crash
-         * kernel. If offset is 0, then it is determined automatically.
-         * By reserving this memory we guarantee that linux never set's it
-         * up as a DMA target.Useful for holding code to do something
-         * appropriate after a kernel panic.
-         */
-        {
-                char *from = strstr(boot_command_line, "crashkernel=");
-                unsigned long base, size;
-                if (from) {
-                        size = memparse(from + 12, &from);
-                        if (*from == '@')
-                                base = memparse(from+1, &from);
-                        else
-                                base = 0;
-                        if (size) {
-                                if (!base) {
-                                        sort_regions(rsvd_region, n);
-                                        base = kdump_find_rsvd_region(size,
-                                                                rsvd_region, n);
-                                        }
-                                if (base != ~0UL) {
-                                        rsvd_region[n].start =
-                                                (unsigned long)__va(base);
-                                        rsvd_region[n].end =
-                                                (unsigned long)__va(base + size);
-                                        n++;
-                                        crashk_res.start = base;
-                                        crashk_res.end = base + size - 1;
-                                }
-                        }
-                }
-                efi_memmap_res.start = ia64_boot_param->efi_memmap;
-                efi_memmap_res.end = efi_memmap_res.start +
-                        ia64_boot_param->efi_memmap_size;
-                boot_param_res.start = __pa(ia64_boot_param);
-                boot_param_res.end = boot_param_res.start +
-                        sizeof(*ia64_boot_param);
-        }
-#endif
+        setup_crashkernel(total_memory, &n);
+
         /* end of memory marker */
         rsvd_region[n].start = ~0UL;
         rsvd_region[n].end   = ~0UL;
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index aeec8184e862..cdb64cc4d9c8 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -227,7 +227,7 @@ ia64_rt_sigreturn (struct sigscratch *scr)
         si.si_signo = SIGSEGV;
         si.si_errno = 0;
         si.si_code = SI_KERNEL;
-        si.si_pid = current->pid;
+        si.si_pid = task_pid_vnr(current);
         si.si_uid = current->uid;
         si.si_addr = sc;
         force_sig_info(SIGSEGV, &si, current);
@@ -332,7 +332,7 @@ force_sigsegv_info (int sig, void __user *addr)
         si.si_signo = SIGSEGV;
         si.si_errno = 0;
         si.si_code = SI_KERNEL;
-        si.si_pid = current->pid;
+        si.si_pid = task_pid_vnr(current);
         si.si_uid = current->uid;
         si.si_addr = addr;
         force_sig_info(SIGSEGV, &si, current);
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 3aeaf15e468b..78d65cb947d2 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 fe6aa5a9f8fa..2173de9fe917 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 {