Merge branch 'master' into sh/smp

Conflicts:
	arch/sh/mm/cache-sh4.c

12 files changed, 265 insertions, 50 deletions

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 2878811c613..756d78b8c1c 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -94,13 +94,13 @@ extern void __bitmap_shift_right(unsigned long *dst,
                         const unsigned long *src, int shift, int bits);
 extern void __bitmap_shift_left(unsigned long *dst,
                         const unsigned long *src, int shift, int bits);
-extern void __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
+extern int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
                         const unsigned long *bitmap2, int bits);
 extern void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
                         const unsigned long *bitmap2, int bits);
 extern void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1,
                         const unsigned long *bitmap2, int bits);
-extern void __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
+extern int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
                         const unsigned long *bitmap2, int bits);
 extern int __bitmap_intersects(const unsigned long *bitmap1,
                         const unsigned long *bitmap2, int bits);
@@ -171,13 +171,12 @@ static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
         }
 }
 
-static inline void bitmap_and(unsigned long *dst, const unsigned long *src1,
+static inline int bitmap_and(unsigned long *dst, const unsigned long *src1,
                         const unsigned long *src2, int nbits)
 {
         if (small_const_nbits(nbits))
-                *dst = *src1 & *src2;
-        else
-                __bitmap_and(dst, src1, src2, nbits);
+                return (*dst = *src1 & *src2) != 0;
+        return __bitmap_and(dst, src1, src2, nbits);
 }
 
 static inline void bitmap_or(unsigned long *dst, const unsigned long *src1,
@@ -198,13 +197,12 @@ static inline void bitmap_xor(unsigned long *dst, const unsigned long *src1,
                 __bitmap_xor(dst, src1, src2, nbits);
 }
 
-static inline void bitmap_andnot(unsigned long *dst, const unsigned long *src1,
+static inline int bitmap_andnot(unsigned long *dst, const unsigned long *src1,
                         const unsigned long *src2, int nbits)
 {
         if (small_const_nbits(nbits))
-                *dst = *src1 & ~(*src2);
-        else
-                __bitmap_andnot(dst, src1, src2, nbits);
+                return (*dst = *src1 & ~(*src2)) != 0;
+        return __bitmap_andnot(dst, src1, src2, nbits);
 }
 
 static inline void bitmap_complement(unsigned long *dst, const unsigned long *src,
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index c5ac87ca7bc..796df12091b 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -43,10 +43,10 @@
  * int cpu_isset(cpu, mask)             true iff bit 'cpu' set in mask
  * int cpu_test_and_set(cpu, mask)      test and set bit 'cpu' in mask
  *
- * void cpus_and(dst, src1, src2)       dst = src1 & src2  [intersection]
+ * int cpus_and(dst, src1, src2)        dst = src1 & src2  [intersection]
  * void cpus_or(dst, src1, src2)        dst = src1 | src2  [union]
  * void cpus_xor(dst, src1, src2)       dst = src1 ^ src2
- * void cpus_andnot(dst, src1, src2)    dst = src1 & ~src2
+ * int cpus_andnot(dst, src1, src2)     dst = src1 & ~src2
  * void cpus_complement(dst, src)       dst = ~src
  *
  * int cpus_equal(mask1, mask2)         Does mask1 == mask2?
@@ -179,10 +179,10 @@ static inline int __cpu_test_and_set(int cpu, cpumask_t *addr)
 }
 
 #define cpus_and(dst, src1, src2) __cpus_and(&(dst), &(src1), &(src2), NR_CPUS)
-static inline void __cpus_and(cpumask_t *dstp, const cpumask_t *src1p,
+static inline int __cpus_and(cpumask_t *dstp, const cpumask_t *src1p,
                                         const cpumask_t *src2p, int nbits)
 {
-        bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits);
+        return bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits);
 }
 
 #define cpus_or(dst, src1, src2) __cpus_or(&(dst), &(src1), &(src2), NR_CPUS)
@@ -201,10 +201,10 @@ static inline void __cpus_xor(cpumask_t *dstp, const cpumask_t *src1p,
 
 #define cpus_andnot(dst, src1, src2) \
                                 __cpus_andnot(&(dst), &(src1), &(src2), NR_CPUS)
-static inline void __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p,
+static inline int __cpus_andnot(cpumask_t *dstp, const cpumask_t *src1p,
                                         const cpumask_t *src2p, int nbits)
 {
-        bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits);
+        return bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits);
 }
 
 #define cpus_complement(dst, src) __cpus_complement(&(dst), &(src), NR_CPUS)
@@ -738,11 +738,11 @@ static inline void cpumask_clear(struct cpumask *dstp)
  * @src1p: the first input
  * @src2p: the second input
  */
-static inline void cpumask_and(struct cpumask *dstp,
+static inline int cpumask_and(struct cpumask *dstp,
                                const struct cpumask *src1p,
                                const struct cpumask *src2p)
 {
-        bitmap_and(cpumask_bits(dstp), cpumask_bits(src1p),
+        return bitmap_and(cpumask_bits(dstp), cpumask_bits(src1p),
                                        cpumask_bits(src2p), nr_cpumask_bits);
 }
 
@@ -779,11 +779,11 @@ static inline void cpumask_xor(struct cpumask *dstp,
  * @src1p: the first input
  * @src2p: the second input
  */
-static inline void cpumask_andnot(struct cpumask *dstp,
+static inline int cpumask_andnot(struct cpumask *dstp,
                                   const struct cpumask *src1p,
                                   const struct cpumask *src2p)
 {
-        bitmap_andnot(cpumask_bits(dstp), cpumask_bits(src1p),
+        return bitmap_andnot(cpumask_bits(dstp), cpumask_bits(src1p),
                                           cpumask_bits(src2p), nr_cpumask_bits);
 }
 
diff --git a/include/linux/device.h b/include/linux/device.h
index aebb81036db..a2864297505 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -62,7 +62,7 @@ struct bus_type {
         int (*suspend)(struct device *dev, pm_message_t state);
         int (*resume)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 
         struct bus_type_private *p;
 };
@@ -132,7 +132,7 @@ struct device_driver {
         int (*resume) (struct device *dev);
         struct attribute_group **groups;
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 
         struct driver_private *p;
 };
@@ -200,7 +200,8 @@ struct class {
         int (*suspend)(struct device *dev, pm_message_t state);
         int (*resume)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
+
         struct class_private *p;
 };
 
@@ -291,7 +292,7 @@ struct device_type {
         char *(*nodename)(struct device *dev);
         void (*release)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 };
 
 /* interface for exporting device attributes */
diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h
index 0ffa41df0ee..710e901085d 100644
--- a/include/linux/gen_stats.h
+++ b/include/linux/gen_stats.h
@@ -22,6 +22,11 @@ struct gnet_stats_basic
 {
         __u64   bytes;
         __u32   packets;
+};
+struct gnet_stats_basic_packed
+{
+        __u64   bytes;
+        __u32   packets;
 } __attribute__ ((packed));
 
 /**
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ba3a7cb1eaa..9a72cc78e6b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -34,8 +34,6 @@ extern int sysctl_legacy_va_layout;
 #define sysctl_legacy_va_layout 0
 #endif
 
-extern unsigned long mmap_min_addr;
-
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -575,19 +573,6 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
 }
 
 /*
- * If a hint addr is less than mmap_min_addr change hint to be as
- * low as possible but still greater than mmap_min_addr
- */
-static inline unsigned long round_hint_to_min(unsigned long hint)
-{
-        hint &= PAGE_MASK;
-        if (((void *)hint != NULL) &&
-            (hint < mmap_min_addr))
-                return PAGE_ALIGN(mmap_min_addr);
-        return hint;
-}
-
-/*
  * Some inline functions in vmstat.h depend on page_zone()
  */
 #include <linux/vmstat.h>
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 7acc8439d9b..0042090a4d7 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -240,8 +240,6 @@ struct mm_struct {
 
         unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
 
-        s8 oom_adj;     /* OOM kill score adjustment (bit shift) */
-
         cpumask_t cpu_vm_mask;
 
         /* Architecture-specific MM context */
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 8dc5123b630..3c6675c2444 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -22,6 +22,9 @@ struct platform_device {
         struct resource * resource;
 
         struct platform_device_id       *id_entry;
+
+        /* arch specific additions */
+        struct pdev_archdata    archdata;
 };
 
 #define platform_get_device_id(pdev)    ((pdev)->id_entry)
@@ -57,8 +60,6 @@ struct platform_driver {
         int (*remove)(struct platform_device *);
         void (*shutdown)(struct platform_device *);
         int (*suspend)(struct platform_device *, pm_message_t state);
-        int (*suspend_late)(struct platform_device *, pm_message_t state);
-        int (*resume_early)(struct platform_device *);
         int (*resume)(struct platform_device *);
         struct device_driver driver;
         struct platform_device_id *id_table;
diff --git a/include/linux/pm.h b/include/linux/pm.h
index b3f74764a58..2b6e20df0e5 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -22,6 +22,10 @@
 #define _LINUX_PM_H
 
 #include <linux/list.h>
+#include <linux/workqueue.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/timer.h>
 
 /*
  * Callbacks for platform drivers to implement.
@@ -165,6 +169,28 @@ typedef struct pm_message {
  * It is allowed to unregister devices while the above callbacks are being
  * executed.  However, it is not allowed to unregister a device from within any
  * of its own callbacks.
+ *
+ * There also are the following callbacks related to run-time power management
+ * of devices:
+ *
+ * @runtime_suspend: Prepare the device for a condition in which it won't be
+ *      able to communicate with the CPU(s) and RAM due to power management.
+ *      This need not mean that the device should be put into a low power state.
+ *      For example, if the device is behind a link which is about to be turned
+ *      off, the device may remain at full power.  If the device does go to low
+ *      power and if device_may_wakeup(dev) is true, remote wake-up (i.e., a
+ *      hardware mechanism allowing the device to request a change of its power
+ *      state, such as PCI PME) should be enabled for it.
+ *
+ * @runtime_resume: Put the device into the fully active state in response to a
+ *      wake-up event generated by hardware or at the request of software.  If
+ *      necessary, put the device into the full power state and restore its
+ *      registers, so that it is fully operational.
+ *
+ * @runtime_idle: Device appears to be inactive and it might be put into a low
+ *      power state if all of the necessary conditions are satisfied.  Check
+ *      these conditions and handle the device as appropriate, possibly queueing
+ *      a suspend request for it.  The return value is ignored by the PM core.
  */
 
 struct dev_pm_ops {
@@ -182,6 +208,9 @@ struct dev_pm_ops {
         int (*thaw_noirq)(struct device *dev);
         int (*poweroff_noirq)(struct device *dev);
         int (*restore_noirq)(struct device *dev);
+        int (*runtime_suspend)(struct device *dev);
+        int (*runtime_resume)(struct device *dev);
+        int (*runtime_idle)(struct device *dev);
 };
 
 /**
@@ -315,14 +344,80 @@ enum dpm_state {
         DPM_OFF_IRQ,
 };
 
+/**
+ * Device run-time power management status.
+ *
+ * These status labels are used internally by the PM core to indicate the
+ * current status of a device with respect to the PM core operations.  They do
+ * not reflect the actual power state of the device or its status as seen by the
+ * driver.
+ *
+ * RPM_ACTIVE           Device is fully operational.  Indicates that the device
+ *                      bus type's ->runtime_resume() callback has completed
+ *                      successfully.
+ *
+ * RPM_SUSPENDED        Device bus type's ->runtime_suspend() callback has
+ *                      completed successfully.  The device is regarded as
+ *                      suspended.
+ *
+ * RPM_RESUMING         Device bus type's ->runtime_resume() callback is being
+ *                      executed.
+ *
+ * RPM_SUSPENDING       Device bus type's ->runtime_suspend() callback is being
+ *                      executed.
+ */
+
+enum rpm_status {
+        RPM_ACTIVE = 0,
+        RPM_RESUMING,
+        RPM_SUSPENDED,
+        RPM_SUSPENDING,
+};
+
+/**
+ * Device run-time power management request types.
+ *
+ * RPM_REQ_NONE         Do nothing.
+ *
+ * RPM_REQ_IDLE         Run the device bus type's ->runtime_idle() callback
+ *
+ * RPM_REQ_SUSPEND      Run the device bus type's ->runtime_suspend() callback
+ *
+ * RPM_REQ_RESUME       Run the device bus type's ->runtime_resume() callback
+ */
+
+enum rpm_request {
+        RPM_REQ_NONE = 0,
+        RPM_REQ_IDLE,
+        RPM_REQ_SUSPEND,
+        RPM_REQ_RESUME,
+};
+
 struct dev_pm_info {
         pm_message_t            power_state;
-        unsigned                can_wakeup:1;
-        unsigned                should_wakeup:1;
+        unsigned int            can_wakeup:1;
+        unsigned int            should_wakeup:1;
         enum dpm_state          status;         /* Owned by the PM core */
-#ifdef  CONFIG_PM_SLEEP
+#ifdef CONFIG_PM_SLEEP
         struct list_head        entry;
 #endif
+#ifdef CONFIG_PM_RUNTIME
+        struct timer_list       suspend_timer;
+        unsigned long           timer_expires;
+        struct work_struct      work;
+        wait_queue_head_t       wait_queue;
+        spinlock_t              lock;
+        atomic_t                usage_count;
+        atomic_t                child_count;
+        unsigned int            disable_depth:3;
+        unsigned int            ignore_children:1;
+        unsigned int            idle_notification:1;
+        unsigned int            request_pending:1;
+        unsigned int            deferred_resume:1;
+        enum rpm_request        request;
+        enum rpm_status         runtime_status;
+        int                     runtime_error;
+#endif
 };
 
 /*
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
new file mode 100644
index 00000000000..44087044910
--- /dev/null
+++ b/include/linux/pm_runtime.h
@@ -0,0 +1,114 @@
+/*
+ * pm_runtime.h - Device run-time power management helper functions.
+ *
+ * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>
+ *
+ * This file is released under the GPLv2.
+ */
+
+#ifndef _LINUX_PM_RUNTIME_H
+#define _LINUX_PM_RUNTIME_H
+
+#include <linux/device.h>
+#include <linux/pm.h>
+
+#ifdef CONFIG_PM_RUNTIME
+
+extern struct workqueue_struct *pm_wq;
+
+extern int pm_runtime_idle(struct device *dev);
+extern int pm_runtime_suspend(struct device *dev);
+extern int pm_runtime_resume(struct device *dev);
+extern int pm_request_idle(struct device *dev);
+extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
+extern int pm_request_resume(struct device *dev);
+extern int __pm_runtime_get(struct device *dev, bool sync);
+extern int __pm_runtime_put(struct device *dev, bool sync);
+extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
+extern int pm_runtime_barrier(struct device *dev);
+extern void pm_runtime_enable(struct device *dev);
+extern void __pm_runtime_disable(struct device *dev, bool check_resume);
+
+static inline bool pm_children_suspended(struct device *dev)
+{
+        return dev->power.ignore_children
+                || !atomic_read(&dev->power.child_count);
+}
+
+static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
+{
+        dev->power.ignore_children = enable;
+}
+
+static inline void pm_runtime_get_noresume(struct device *dev)
+{
+        atomic_inc(&dev->power.usage_count);
+}
+
+static inline void pm_runtime_put_noidle(struct device *dev)
+{
+        atomic_add_unless(&dev->power.usage_count, -1, 0);
+}
+
+#else /* !CONFIG_PM_RUNTIME */
+
+static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
+static inline int pm_runtime_suspend(struct device *dev) { return -ENOSYS; }
+static inline int pm_runtime_resume(struct device *dev) { return 0; }
+static inline int pm_request_idle(struct device *dev) { return -ENOSYS; }
+static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
+{
+        return -ENOSYS;
+}
+static inline int pm_request_resume(struct device *dev) { return 0; }
+static inline int __pm_runtime_get(struct device *dev, bool sync) { return 1; }
+static inline int __pm_runtime_put(struct device *dev, bool sync) { return 0; }
+static inline int __pm_runtime_set_status(struct device *dev,
+                                            unsigned int status) { return 0; }
+static inline int pm_runtime_barrier(struct device *dev) { return 0; }
+static inline void pm_runtime_enable(struct device *dev) {}
+static inline void __pm_runtime_disable(struct device *dev, bool c) {}
+
+static inline bool pm_children_suspended(struct device *dev) { return false; }
+static inline void pm_suspend_ignore_children(struct device *dev, bool en) {}
+static inline void pm_runtime_get_noresume(struct device *dev) {}
+static inline void pm_runtime_put_noidle(struct device *dev) {}
+
+#endif /* !CONFIG_PM_RUNTIME */
+
+static inline int pm_runtime_get(struct device *dev)
+{
+        return __pm_runtime_get(dev, false);
+}
+
+static inline int pm_runtime_get_sync(struct device *dev)
+{
+        return __pm_runtime_get(dev, true);
+}
+
+static inline int pm_runtime_put(struct device *dev)
+{
+        return __pm_runtime_put(dev, false);
+}
+
+static inline int pm_runtime_put_sync(struct device *dev)
+{
+        return __pm_runtime_put(dev, true);
+}
+
+static inline int pm_runtime_set_active(struct device *dev)
+{
+        return __pm_runtime_set_status(dev, RPM_ACTIVE);
+}
+
+static inline void pm_runtime_set_suspended(struct device *dev)
+{
+        __pm_runtime_set_status(dev, RPM_SUSPENDED);
+}
+
+static inline void pm_runtime_disable(struct device *dev)
+{
+        __pm_runtime_disable(dev, true);
+}
+
+#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3ab08e4bb6b..0f1ea4a6695 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1198,6 +1198,7 @@ struct task_struct {
          * a short time
          */
         unsigned char fpu_counter;
+        s8 oomkilladj; /* OOM kill score adjustment (bit shift). */
 #ifdef CONFIG_BLK_DEV_IO_TRACE
         unsigned int btrace_seq;
 #endif
diff --git a/include/linux/security.h b/include/linux/security.h
index 5eff459b383..1f16eea2017 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -28,6 +28,7 @@
 #include <linux/resource.h>
 #include <linux/sem.h>
 #include <linux/shm.h>
+#include <linux/mm.h> /* PAGE_ALIGN */
 #include <linux/msg.h>
 #include <linux/sched.h>
 #include <linux/key.h>
@@ -66,6 +67,9 @@ extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
 extern int cap_inode_need_killpriv(struct dentry *dentry);
 extern int cap_inode_killpriv(struct dentry *dentry);
+extern int cap_file_mmap(struct file *file, unsigned long reqprot,
+                         unsigned long prot, unsigned long flags,
+                         unsigned long addr, unsigned long addr_only);
 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
                           unsigned long arg4, unsigned long arg5);
@@ -92,6 +96,7 @@ extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
 extern int cap_netlink_recv(struct sk_buff *skb, int cap);
 
 extern unsigned long mmap_min_addr;
+extern unsigned long dac_mmap_min_addr;
 /*
  * Values used in the task_security_ops calls
  */
@@ -116,6 +121,21 @@ struct request_sock;
 #define LSM_UNSAFE_PTRACE       2
 #define LSM_UNSAFE_PTRACE_CAP   4
 
+/*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+        hint &= PAGE_MASK;
+        if (((void *)hint != NULL) &&
+            (hint < mmap_min_addr))
+                return PAGE_ALIGN(mmap_min_addr);
+        return hint;
+}
+extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp,
+                                 void __user *buffer, size_t *lenp, loff_t *ppos);
+
 #ifdef CONFIG_SECURITY
 
 struct security_mnt_opts {
@@ -2197,9 +2217,7 @@ static inline int security_file_mmap(struct file *file, unsigned long reqprot,
                                      unsigned long addr,
                                      unsigned long addr_only)
 {
-        if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
-                return -EACCES;
-        return 0;
+        return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
 }
 
 static inline int security_file_mprotect(struct vm_area_struct *vma,
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index eb1423a0078..68e212ff9dd 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -85,7 +85,6 @@ struct intc_desc symbol __initdata = {					\
 }
 #endif
 
-unsigned int intc_evt2irq(unsigned int vector);
 void __init register_intc_controller(struct intc_desc *desc);
 int intc_set_priority(unsigned int irq, unsigned int prio);