Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

7 files changed, 64 insertions, 117 deletions

diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 3c71f776872c..c7272b894283 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -18,53 +18,10 @@
 
 #include <linux/kernel_stat.h>
 #include <linux/interrupt.h>
-#include <linux/seq_file.h>
 #include <linux/module.h>
 #include <asm/uaccess.h>
 
 /*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
-{
-        int i = *(loff_t *) v, j;
-        struct irqaction * action;
-        unsigned long flags;
-
-        if (i == 0) {
-                seq_printf(p, "           ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "CPU%d       ",j);
-                seq_putc(p, '\n');
-        }
-
-        if (i < NR_IRQS) {
-                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-                action = irq_desc[i].action;
-                if (!action)
-                        goto skip;
-                seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-                seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-                seq_printf(p, " %14s", irq_desc[i].chip->typename);
-                seq_printf(p, "  %s", action->name);
-
-                for (action=action->next; action; action = action->next)
-                        seq_printf(p, ", %s", action->name);
-
-                seq_putc(p, '\n');
-skip:
-                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-        }
-        return 0;
-}
-
-/*
  * do_IRQ handles all normal device IRQs (the special
  * SMP cross-CPU interrupts have their own specific
  * handlers).
@@ -78,7 +35,7 @@ asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs)
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
         /* FIXME M32R */
 #endif
-        __do_IRQ(irq);
+        generic_handle_irq(irq);
         irq_exit();
         set_irq_regs(old_regs);
 
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 0021ade4cba8..20743754f2b2 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -622,9 +622,11 @@ void ptrace_disable(struct task_struct *child)
 }
 
 long
-arch_ptrace(struct task_struct *child, long request, long addr, long data)
+arch_ptrace(struct task_struct *child, long request,
+            unsigned long addr, unsigned long data)
 {
         int ret;
+        unsigned long __user *datap = (unsigned long __user *) data;
 
         switch (request) {
         /*
@@ -639,8 +641,7 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data)
          * read the word at location addr in the USER area.
          */
         case PTRACE_PEEKUSR:
-                ret = ptrace_read_user(child, addr,
-                                       (unsigned long __user *)data);
+                ret = ptrace_read_user(child, addr, datap);
                 break;
 
         /*
@@ -661,11 +662,11 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 break;
 
         case PTRACE_GETREGS:
-                ret = ptrace_getregs(child, (void __user *)data);
+                ret = ptrace_getregs(child, datap);
                 break;
 
         case PTRACE_SETREGS:
-                ret = ptrace_setregs(child, (void __user *)data);
+                ret = ptrace_setregs(child, datap);
                 break;
 
         default:
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 31cef20b2996..092d40a6708e 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -30,6 +30,7 @@
 #include <asm/io.h>
 #include <asm/mmu_context.h>
 #include <asm/m32r.h>
+#include <asm/tlbflush.h>
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
 /* Data structures and variables                                             */
@@ -61,33 +62,22 @@ extern spinlock_t ipi_lock[];
 /* Function Prototypes                                                       */
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
 
-void smp_send_reschedule(int);
 void smp_reschedule_interrupt(void);
-
-void smp_flush_cache_all(void);
 void smp_flush_cache_all_interrupt(void);
 
-void smp_flush_tlb_all(void);
 static void flush_tlb_all_ipi(void *);
-
-void smp_flush_tlb_mm(struct mm_struct *);
-void smp_flush_tlb_range(struct vm_area_struct *, unsigned long, \
-        unsigned long);
-void smp_flush_tlb_page(struct vm_area_struct *, unsigned long);
 static void flush_tlb_others(cpumask_t, struct mm_struct *,
         struct vm_area_struct *, unsigned long);
+
 void smp_invalidate_interrupt(void);
 
-void smp_send_stop(void);
 static void stop_this_cpu(void *);
 
-void smp_send_timer(void);
 void smp_ipi_timer_interrupt(struct pt_regs *);
 void smp_local_timer_interrupt(void);
 
 static void send_IPI_allbutself(int, int);
 static void send_IPI_mask(const struct cpumask *, int, int);
-unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
 /* Rescheduling request Routines                                             */
@@ -122,8 +112,6 @@ void smp_send_reschedule(int cpu_id)
  *
  * Description:  This routine executes on CPU which received
  *               'RESCHEDULE_IPI'.
- *               Rescheduling is processed at the exit of interrupt
- *               operation.
  *
  * Born on Date: 2002.02.05
  *
@@ -138,7 +126,7 @@ void smp_send_reschedule(int cpu_id)
  *==========================================================================*/
 void smp_reschedule_interrupt(void)
 {
-        /* nothing to do */
+        scheduler_ipi();
 }
 
 /*==========================================================================*
@@ -164,10 +152,10 @@ void smp_flush_cache_all(void)
         unsigned long *mask;
 
         preempt_disable();
-        cpumask = cpu_online_map;
-        cpu_clear(smp_processor_id(), cpumask);
+        cpumask_copy(&cpumask, cpu_online_mask);
+        cpumask_clear_cpu(smp_processor_id(), &cpumask);
         spin_lock(&flushcache_lock);
-        mask=cpus_addr(cpumask);
+        mask=cpumask_bits(&cpumask);
         atomic_set_mask(*mask, (atomic_t *)&flushcache_cpumask);
         send_IPI_mask(&cpumask, INVALIDATE_CACHE_IPI, 0);
         _flush_cache_copyback_all();
@@ -265,8 +253,8 @@ void smp_flush_tlb_mm(struct mm_struct *mm)
         preempt_disable();
         cpu_id = smp_processor_id();
         mmc = &mm->context[cpu_id];
-        cpu_mask = *mm_cpumask(mm);
-        cpu_clear(cpu_id, cpu_mask);
+        cpumask_copy(&cpu_mask, mm_cpumask(mm));
+        cpumask_clear_cpu(cpu_id, &cpu_mask);
 
         if (*mmc != NO_CONTEXT) {
                 local_irq_save(flags);
@@ -277,7 +265,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm)
                         cpumask_clear_cpu(cpu_id, mm_cpumask(mm));
                 local_irq_restore(flags);
         }
-        if (!cpus_empty(cpu_mask))
+        if (!cpumask_empty(&cpu_mask))
                 flush_tlb_others(cpu_mask, mm, NULL, FLUSH_ALL);
 
         preempt_enable();
@@ -335,8 +323,8 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
         preempt_disable();
         cpu_id = smp_processor_id();
         mmc = &mm->context[cpu_id];
-        cpu_mask = *mm_cpumask(mm);
-        cpu_clear(cpu_id, cpu_mask);
+        cpumask_copy(&cpu_mask, mm_cpumask(mm));
+        cpumask_clear_cpu(cpu_id, &cpu_mask);
 
 #ifdef DEBUG_SMP
         if (!mm)
@@ -350,7 +338,7 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
                 __flush_tlb_page(va);
                 local_irq_restore(flags);
         }
-        if (!cpus_empty(cpu_mask))
+        if (!cpumask_empty(&cpu_mask))
                 flush_tlb_others(cpu_mask, mm, vma, va);
 
         preempt_enable();
@@ -397,14 +385,14 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
          * - current CPU must not be in mask
          * - mask must exist :)
          */
-        BUG_ON(cpus_empty(cpumask));
+        BUG_ON(cpumask_empty(&cpumask));
 
-        BUG_ON(cpu_isset(smp_processor_id(), cpumask));
+        BUG_ON(cpumask_test_cpu(smp_processor_id(), &cpumask));
         BUG_ON(!mm);
 
         /* If a CPU which we ran on has gone down, OK. */
-        cpus_and(cpumask, cpumask, cpu_online_map);
-        if (cpus_empty(cpumask))
+        cpumask_and(&cpumask, &cpumask, cpu_online_mask);
+        if (cpumask_empty(&cpumask))
                 return;
 
         /*
@@ -418,7 +406,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
         flush_mm = mm;
         flush_vma = vma;
         flush_va = va;
-        mask=cpus_addr(cpumask);
+        mask=cpumask_bits(&cpumask);
         atomic_set_mask(*mask, (atomic_t *)&flush_cpumask);
 
         /*
@@ -427,7 +415,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
          */
         send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
 
-        while (!cpus_empty(flush_cpumask)) {
+        while (!cpumask_empty((cpumask_t*)&flush_cpumask)) {
                 /* nothing. lockup detection does not belong here */
                 mb();
         }
@@ -462,7 +450,7 @@ void smp_invalidate_interrupt(void)
         int cpu_id = smp_processor_id();
         unsigned long *mmc = &flush_mm->context[cpu_id];
 
-        if (!cpu_isset(cpu_id, flush_cpumask))
+        if (!cpumask_test_cpu(cpu_id, &flush_cpumask))
                 return;
 
         if (flush_va == FLUSH_ALL) {
@@ -480,7 +468,7 @@ void smp_invalidate_interrupt(void)
                         __flush_tlb_page(va);
                 }
         }
-        cpu_clear(cpu_id, flush_cpumask);
+        cpumask_clear_cpu(cpu_id, (cpumask_t*)&flush_cpumask);
 }
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
@@ -532,7 +520,7 @@ static void stop_this_cpu(void *dummy)
         /*
          * Remove this CPU:
          */
-        cpu_clear(cpu_id, cpu_online_map);
+        set_cpu_online(cpu_id, false);
 
         /*
          * PSW IE = 1;
@@ -727,8 +715,8 @@ static void send_IPI_allbutself(int ipi_num, int try)
 {
         cpumask_t cpumask;
 
-        cpumask = cpu_online_map;
-        cpu_clear(smp_processor_id(), cpumask);
+        cpumask_copy(&cpumask, cpu_online_mask);
+        cpumask_clear_cpu(smp_processor_id(), &cpumask);
 
         send_IPI_mask(&cpumask, ipi_num, try);
 }
@@ -765,13 +753,13 @@ static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try)
         cpumask_and(&tmp, cpumask, cpu_online_mask);
         BUG_ON(!cpumask_equal(cpumask, &tmp));
 
-        physid_mask = CPU_MASK_NONE;
+        cpumask_clear(&physid_mask);
         for_each_cpu(cpu_id, cpumask) {
                 if ((phys_id = cpu_to_physid(cpu_id)) != -1)
-                        cpu_set(phys_id, physid_mask);
+                        cpumask_set_cpu(phys_id, &physid_mask);
         }
 
-        send_IPI_mask_phys(physid_mask, ipi_num, try);
+        send_IPI_mask_phys(&physid_mask, ipi_num, try);
 }
 
 /*==========================================================================*
@@ -794,14 +782,14 @@ static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try)
  * ---------- --- --------------------------------------------------------
  *
  *==========================================================================*/
-unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num,
+unsigned long send_IPI_mask_phys(const cpumask_t *physid_mask, int ipi_num,
         int try)
 {
         spinlock_t *ipilock;
         volatile unsigned long *ipicr_addr;
         unsigned long ipicr_val;
         unsigned long my_physid_mask;
-        unsigned long mask = cpus_addr(physid_mask)[0];
+        unsigned long mask = cpumask_bits(physid_mask)[0];
 
 
         if (mask & ~physids_coerce(phys_cpu_present_map))
diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index e034844cfc0d..cfdbe5d15002 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -135,9 +135,9 @@ void __devinit smp_prepare_boot_cpu(void)
 {
         bsp_phys_id = hard_smp_processor_id();
         physid_set(bsp_phys_id, phys_cpu_present_map);
-        cpu_set(0, cpu_online_map);     /* BSP's cpu_id == 0 */
-        cpu_set(0, cpu_callout_map);
-        cpu_set(0, cpu_callin_map);
+        set_cpu_online(0, true);        /* BSP's cpu_id == 0 */
+        cpumask_set_cpu(0, &cpu_callout_map);
+        cpumask_set_cpu(0, &cpu_callin_map);
 
         /*
          * Initialize the logical to physical CPU number mapping
@@ -178,7 +178,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         for (phys_id = 0 ; phys_id < nr_cpu ; phys_id++)
                 physid_set(phys_id, phys_cpu_present_map);
 #ifndef CONFIG_HOTPLUG_CPU
-        init_cpu_present(&cpu_possible_map);
+        init_cpu_present(cpu_possible_mask);
 #endif
 
         show_mp_info(nr_cpu);
@@ -294,10 +294,10 @@ static void __init do_boot_cpu(int phys_id)
         send_status = 0;
         boot_status = 0;
 
-        cpu_set(phys_id, cpu_bootout_map);
+        cpumask_set_cpu(phys_id, &cpu_bootout_map);
 
         /* Send Startup IPI */
-        send_IPI_mask_phys(cpumask_of_cpu(phys_id), CPU_BOOT_IPI, 0);
+        send_IPI_mask_phys(cpumask_of(phys_id), CPU_BOOT_IPI, 0);
 
         Dprintk("Waiting for send to finish...\n");
         timeout = 0;
@@ -306,7 +306,7 @@ static void __init do_boot_cpu(int phys_id)
         do {
                 Dprintk("+");
                 udelay(1000);
-                send_status = !cpu_isset(phys_id, cpu_bootin_map);
+                send_status = !cpumask_test_cpu(phys_id, &cpu_bootin_map);
         } while (send_status && (timeout++ < 100));
 
         Dprintk("After Startup.\n");
@@ -316,19 +316,19 @@ static void __init do_boot_cpu(int phys_id)
                  * allow APs to start initializing.
                  */
                 Dprintk("Before Callout %d.\n", cpu_id);
-                cpu_set(cpu_id, cpu_callout_map);
+                cpumask_set_cpu(cpu_id, &cpu_callout_map);
                 Dprintk("After Callout %d.\n", cpu_id);
 
                 /*
                  * Wait 5s total for a response
                  */
                 for (timeout = 0; timeout < 5000; timeout++) {
-                        if (cpu_isset(cpu_id, cpu_callin_map))
+                        if (cpumask_test_cpu(cpu_id, &cpu_callin_map))
                                 break;  /* It has booted */
                         udelay(1000);
                 }
 
-                if (cpu_isset(cpu_id, cpu_callin_map)) {
+                if (cpumask_test_cpu(cpu_id, &cpu_callin_map)) {
                         /* number CPUs logically, starting from 1 (BSP is 0) */
                         Dprintk("OK.\n");
                 } else {
@@ -340,9 +340,9 @@ static void __init do_boot_cpu(int phys_id)
 
         if (send_status || boot_status) {
                 unmap_cpu_to_physid(cpu_id, phys_id);
-                cpu_clear(cpu_id, cpu_callout_map);
-                cpu_clear(cpu_id, cpu_callin_map);
-                cpu_clear(cpu_id, cpu_initialized);
+                cpumask_clear_cpu(cpu_id, &cpu_callout_map);
+                cpumask_clear_cpu(cpu_id, &cpu_callin_map);
+                cpumask_clear_cpu(cpu_id, &cpu_initialized);
                 cpucount--;
         }
 }
@@ -351,17 +351,17 @@ int __cpuinit __cpu_up(unsigned int cpu_id)
 {
         int timeout;
 
-        cpu_set(cpu_id, smp_commenced_mask);
+        cpumask_set_cpu(cpu_id, &smp_commenced_mask);
 
         /*
          * Wait 5s total for a response
          */
         for (timeout = 0; timeout < 5000; timeout++) {
-                if (cpu_isset(cpu_id, cpu_online_map))
+                if (cpu_online(cpu_id))
                         break;
                 udelay(1000);
         }
-        if (!cpu_isset(cpu_id, cpu_online_map))
+        if (!cpu_online(cpu_id))
                 BUG();
 
         return 0;
@@ -373,11 +373,11 @@ void __init smp_cpus_done(unsigned int max_cpus)
         unsigned long bogosum = 0;
 
         for (timeout = 0; timeout < 5000; timeout++) {
-                if (cpus_equal(cpu_callin_map, cpu_online_map))
+                if (cpumask_equal(&cpu_callin_map, cpu_online_mask))
                         break;
                 udelay(1000);
         }
-        if (!cpus_equal(cpu_callin_map, cpu_online_map))
+        if (!cpumask_equal(&cpu_callin_map, cpu_online_mask))
                 BUG();
 
         for (cpu_id = 0 ; cpu_id < num_online_cpus() ; cpu_id++)
@@ -388,7 +388,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
          */
         Dprintk("Before bogomips.\n");
         if (cpucount) {
-                for_each_cpu_mask(cpu_id, cpu_online_map)
+                for_each_cpu(cpu_id,cpu_online_mask)
                         bogosum += cpu_data[cpu_id].loops_per_jiffy;
 
                 printk(KERN_INFO "Total of %d processors activated " \
@@ -425,7 +425,7 @@ int __init start_secondary(void *unused)
         cpu_init();
         preempt_disable();
         smp_callin();
-        while (!cpu_isset(smp_processor_id(), smp_commenced_mask))
+        while (!cpumask_test_cpu(smp_processor_id(), &smp_commenced_mask))
                 cpu_relax();
 
         smp_online();
@@ -463,7 +463,7 @@ static void __init smp_callin(void)
         int cpu_id = smp_processor_id();
         unsigned long timeout;
 
-        if (cpu_isset(cpu_id, cpu_callin_map)) {
+        if (cpumask_test_cpu(cpu_id, &cpu_callin_map)) {
                 printk("huh, phys CPU#%d, CPU#%d already present??\n",
                         phys_id, cpu_id);
                 BUG();
@@ -474,7 +474,7 @@ static void __init smp_callin(void)
         timeout = jiffies + (2 * HZ);
         while (time_before(jiffies, timeout)) {
                 /* Has the boot CPU finished it's STARTUP sequence ? */
-                if (cpu_isset(cpu_id, cpu_callout_map))
+                if (cpumask_test_cpu(cpu_id, &cpu_callout_map))
                         break;
                 cpu_relax();
         }
@@ -486,7 +486,7 @@ static void __init smp_callin(void)
         }
 
         /* Allow the master to continue. */
-        cpu_set(cpu_id, cpu_callin_map);
+        cpumask_set_cpu(cpu_id, &cpu_callin_map);
 }
 
 static void __init smp_online(void)
@@ -503,7 +503,7 @@ static void __init smp_online(void)
         /* Save our processor parameters */
         smp_store_cpu_info(cpu_id);
 
-        cpu_set(cpu_id, cpu_online_map);
+        set_cpu_online(cpu_id, true);
 }
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index 60536e271233..528f2e6ad064 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -324,3 +324,4 @@ ENTRY(sys_call_table)
         .long sys_ni_syscall
         .long sys_eventfd
         .long sys_fallocate
+        .long sys_setns                 /* 325 */
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index bda86820bffd..84dd04048db9 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -107,15 +107,14 @@ u32 arch_gettimeoffset(void)
 
 /*
  * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
+ * as well as call the "xtime_update()" routine every clocktick
  */
 static irqreturn_t timer_interrupt(int irq, void *dev_id)
 {
 #ifndef CONFIG_SMP
         profile_tick(CPU_PROFILING);
 #endif
-        /* XXX FIXME. Uh, the xtime_lock should be held here, no? */
-        do_timer(1);
+        xtime_update(1);
 
 #ifndef CONFIG_SMP
         update_process_times(user_mode(get_irq_regs()));
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index 7da94eaa082b..018e4a711d79 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -44,6 +44,7 @@ SECTIONS
   EXCEPTION_TABLE(16)
   NOTES
 
+  _sdata = .;                   /* Start of data section */
   RODATA
   RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
   _edata = .;                   /* End of data section */
@@ -53,7 +54,7 @@ SECTIONS
   __init_begin = .;
   INIT_TEXT_SECTION(PAGE_SIZE)
   INIT_DATA_SECTION(16)
-  PERCPU(PAGE_SIZE)
+  PERCPU_SECTION(32)
   . = ALIGN(PAGE_SIZE);
   __init_end = .;
   /* freed after init ends here */