Merge branch 'for-2.6.34' into for-2.6.35

83 files changed, 680 insertions, 225 deletions

diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 1172c27adad..86825ddbe14 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -320,8 +320,16 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
 
 #endif				/* CONFIG_CPU_FREQ */
 
-/* in processor_pdc.c */
+/* in processor_core.c */
 void acpi_processor_set_pdc(acpi_handle handle);
+#ifdef CONFIG_SMP
+int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
+#else
+static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
+{
+	return -1;
+}
+#endif
 
 /* in processor_throttling.c */
 int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
diff --git a/include/asm-generic/pci-dma-compat.h b/include/asm-generic/pci-dma-compat.h
index 37b3706226e..1437b7da09b 100644
--- a/include/asm-generic/pci-dma-compat.h
+++ b/include/asm-generic/pci-dma-compat.h
@@ -6,9 +6,6 @@
 
 #include <linux/dma-mapping.h>
 
-/* note pci_set_dma_mask isn't here, since it's a public function
- * exported from drivers/pci, use dma_supported instead */
-
 static inline int
 pci_dma_supported(struct pci_dev *hwdev, u64 mask)
 {
@@ -104,4 +101,16 @@ pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
 	return dma_mapping_error(&pdev->dev, dma_addr);
 }
 
+#ifdef CONFIG_PCI
+static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	return dma_set_mask(&dev->dev, mask);
+}
+
+static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	return dma_set_coherent_mask(&dev->dev, mask);
+}
+#endif
+
 #endif
diff --git a/include/linux/acct.h b/include/linux/acct.h
index 882dc724876..3e4737fa6cc 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -121,16 +121,15 @@ struct vfsmount;
 struct super_block;
 struct pacct_struct;
 struct pid_namespace;
+extern int acct_parm[]; /* for sysctl */
 extern void acct_auto_close_mnt(struct vfsmount *m);
 extern void acct_auto_close(struct super_block *sb);
-extern void acct_init_pacct(struct pacct_struct *pacct);
 extern void acct_collect(long exitcode, int group_dead);
 extern void acct_process(void);
 extern void acct_exit_ns(struct pid_namespace *);
 #else
 #define acct_auto_close_mnt(x)	do { } while (0)
 #define acct_auto_close(x)	do { } while (0)
-#define acct_init_pacct(x)	do { } while (0)
 #define acct_collect(x,y)	do { } while (0)
 #define acct_process()		do { } while (0)
 #define acct_exit_ns(ns)	do { } while (0)
diff --git a/include/linux/amba/clcd.h b/include/linux/amba/clcd.h
index 29c0448265c..ca16c3801a1 100644
--- a/include/linux/amba/clcd.h
+++ b/include/linux/amba/clcd.h
@@ -21,22 +21,21 @@
 #define CLCD_UBAS 		0x00000010
 #define CLCD_LBAS 		0x00000014
 
-#if !defined(CONFIG_ARCH_VERSATILE) && !defined(CONFIG_ARCH_REALVIEW)
-#define CLCD_IENB 		0x00000018
-#define CLCD_CNTL 		0x0000001c
-#else
-/*
- * Someone rearranged these two registers on the Versatile
- * platform...
- */
-#define CLCD_IENB 		0x0000001c
-#define CLCD_CNTL 		0x00000018
-#endif
-
-#define CLCD_STAT 		0x00000020
-#define CLCD_INTR 		0x00000024
-#define CLCD_UCUR 		0x00000028
-#define CLCD_LCUR 		0x0000002C
+#define CLCD_PL110_IENB		0x00000018
+#define CLCD_PL110_CNTL		0x0000001c
+#define CLCD_PL110_STAT		0x00000020
+#define CLCD_PL110_INTR 	0x00000024
+#define CLCD_PL110_UCUR		0x00000028
+#define CLCD_PL110_LCUR		0x0000002C
+
+#define CLCD_PL111_CNTL		0x00000018
+#define CLCD_PL111_IENB		0x0000001c
+#define CLCD_PL111_RIS		0x00000020
+#define CLCD_PL111_MIS		0x00000024
+#define CLCD_PL111_ICR		0x00000028
+#define CLCD_PL111_UCUR		0x0000002c
+#define CLCD_PL111_LCUR		0x00000030
+
 #define CLCD_PALL 		0x00000200
 #define CLCD_PALETTE		0x00000200
 
@@ -147,6 +146,8 @@ struct clcd_fb {
 	struct clcd_board	*board;
 	void			*board_data;
 	void __iomem		*regs;
+	u16			off_ienb;
+	u16			off_cntl;
 	u32			clcd_cntl;
 	u32			cmap[16];
 };
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 8c4f884db6b..4a3d52e545e 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -36,18 +36,18 @@ struct backlight_device;
 struct fb_info;
 
 struct backlight_ops {
-	const unsigned int options;
+	unsigned int options;
 
 #define BL_CORE_SUSPENDRESUME	(1 << 0)
 
 	/* Notify the backlight driver some property has changed */
-	int (* const update_status)(struct backlight_device *);
+	int (*update_status)(struct backlight_device *);
 	/* Return the current backlight brightness (accounting for power,
 	   fb_blank etc.) */
-	int (* const get_brightness)(struct backlight_device *);
+	int (*get_brightness)(struct backlight_device *);
 	/* Check if given framebuffer device is the one bound to this backlight;
 	   return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */
-	int (* const check_fb)(struct fb_info *);
+	int (*check_fb)(struct backlight_device *, struct fb_info *);
 };
 
 /* This structure defines all the properties of a backlight */
@@ -103,7 +103,8 @@ static inline void backlight_update_status(struct backlight_device *bd)
 }
 
 extern struct backlight_device *backlight_device_register(const char *name,
-	struct device *dev, void *devdata, const struct backlight_ops *ops);
+	struct device *dev, void *devdata, const struct backlight_ops *ops,
+	const struct backlight_properties *props);
 extern void backlight_device_unregister(struct backlight_device *bd);
 extern void backlight_force_update(struct backlight_device *bd,
 				   enum backlight_update_reason reason);
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index c9bbcb2a75a..b8ad1ea9958 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -37,16 +37,24 @@ extern void cgroup_post_fork(struct task_struct *p);
 extern void cgroup_exit(struct task_struct *p, int run_callbacks);
 extern int cgroupstats_build(struct cgroupstats *stats,
 				struct dentry *dentry);
+extern int cgroup_load_subsys(struct cgroup_subsys *ss);
+extern void cgroup_unload_subsys(struct cgroup_subsys *ss);
 
 extern const struct file_operations proc_cgroup_operations;
 
-/* Define the enumeration of all cgroup subsystems */
+/* Define the enumeration of all builtin cgroup subsystems */
 #define SUBSYS(_x) _x ## _subsys_id,
 enum cgroup_subsys_id {
 #include <linux/cgroup_subsys.h>
-	CGROUP_SUBSYS_COUNT
+	CGROUP_BUILTIN_SUBSYS_COUNT
 };
 #undef SUBSYS
+/*
+ * This define indicates the maximum number of subsystems that can be loaded
+ * at once. We limit to this many since cgroupfs_root has subsys_bits to keep
+ * track of all of them.
+ */
+#define CGROUP_SUBSYS_COUNT (BITS_PER_BYTE*sizeof(unsigned long))
 
 /* Per-subsystem/per-cgroup state maintained by the system. */
 struct cgroup_subsys_state {
@@ -76,6 +84,12 @@ enum {
 	CSS_REMOVED, /* This CSS is dead */
 };
 
+/* Caller must verify that the css is not for root cgroup */
+static inline void __css_get(struct cgroup_subsys_state *css, int count)
+{
+	atomic_add(count, &css->refcnt);
+}
+
 /*
  * Call css_get() to hold a reference on the css; it can be used
  * for a reference obtained via:
@@ -87,7 +101,7 @@ static inline void css_get(struct cgroup_subsys_state *css)
 {
 	/* We don't need to reference count the root state */
 	if (!test_bit(CSS_ROOT, &css->flags))
-		atomic_inc(&css->refcnt);
+		__css_get(css, 1);
 }
 
 static inline bool css_is_removed(struct cgroup_subsys_state *css)
@@ -118,11 +132,11 @@ static inline bool css_tryget(struct cgroup_subsys_state *css)
  * css_get() or css_tryget()
  */
 
-extern void __css_put(struct cgroup_subsys_state *css);
+extern void __css_put(struct cgroup_subsys_state *css, int count);
 static inline void css_put(struct cgroup_subsys_state *css)
 {
 	if (!test_bit(CSS_ROOT, &css->flags))
-		__css_put(css);
+		__css_put(css, 1);
 }
 
 /* bits in struct cgroup flags field */
@@ -221,6 +235,10 @@ struct cgroup {
 
 	/* For RCU-protected deletion */
 	struct rcu_head rcu_head;
+
+	/* List of events which userspace want to recieve */
+	struct list_head event_list;
+	spinlock_t event_list_lock;
 };
 
 /*
@@ -258,7 +276,8 @@ struct css_set {
 	/*
 	 * Set of subsystem states, one for each subsystem. This array
 	 * is immutable after creation apart from the init_css_set
-	 * during subsystem registration (at boot time).
+	 * during subsystem registration (at boot time) and modular subsystem
+	 * loading/unloading.
 	 */
 	struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT];
 
@@ -363,6 +382,23 @@ struct cftype {
 	int (*trigger)(struct cgroup *cgrp, unsigned int event);
 
 	int (*release)(struct inode *inode, struct file *file);
+
+	/*
+	 * register_event() callback will be used to add new userspace
+	 * waiter for changes related to the cftype. Implement it if
+	 * you want to provide this functionality. Use eventfd_signal()
+	 * on eventfd to send notification to userspace.
+	 */
+	int (*register_event)(struct cgroup *cgrp, struct cftype *cft,
+			struct eventfd_ctx *eventfd, const char *args);
+	/*
+	 * unregister_event() callback will be called when userspace
+	 * closes the eventfd or on cgroup removing.
+	 * This callback must be implemented, if you want provide
+	 * notification functionality.
+	 */
+	int (*unregister_event)(struct cgroup *cgrp, struct cftype *cft,
+			struct eventfd_ctx *eventfd);
 };
 
 struct cgroup_scanner {
@@ -428,6 +464,8 @@ struct cgroup_subsys {
 	void (*destroy)(struct cgroup_subsys *ss, struct cgroup *cgrp);
 	int (*can_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
 			  struct task_struct *tsk, bool threadgroup);
+	void (*cancel_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			  struct task_struct *tsk, bool threadgroup);
 	void (*attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
 			struct cgroup *old_cgrp, struct task_struct *tsk,
 			bool threadgroup);
@@ -472,6 +510,9 @@ struct cgroup_subsys {
 	/* used when use_id == true */
 	struct idr idr;
 	spinlock_t id_lock;
+
+	/* should be defined only by modular subsystems */
+	struct module *module;
 };
 
 #define SUBSYS(_x) extern struct cgroup_subsys _x ## _subsys;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index ef68119a4fd..717c691ecd8 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -23,6 +23,7 @@
 typedef __compat_uid32_t	compat_uid_t;
 typedef __compat_gid32_t	compat_gid_t;
 
+struct compat_sel_arg_struct;
 struct rusage;
 
 struct compat_itimerspec { 
@@ -249,6 +250,8 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
 		compat_ulong_t __user *outp, compat_ulong_t __user *exp,
 		struct compat_timeval __user *tvp);
 
+asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
+
 asmlinkage long compat_sys_wait4(compat_pid_t pid,
 				 compat_uint_t __user *stat_addr, int options,
 				 struct compat_rusage __user *ru);
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index b3c91d7cede..8ba66a9d902 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -16,6 +16,8 @@ static inline int dump_write(struct file *file, const void *addr, int nr)
 
 static inline int dump_seek(struct file *file, loff_t off)
 {
+	int ret = 1;
+
 	if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
 		if (file->f_op->llseek(file, off, SEEK_CUR) < 0)
 			return 0;
@@ -29,13 +31,15 @@ static inline int dump_seek(struct file *file, loff_t off)
 
 			if (n > PAGE_SIZE)
 				n = PAGE_SIZE;
-			if (!dump_write(file, buf, n))
-				return 0;
+			if (!dump_write(file, buf, n)) {
+				ret = 0;
+				break;
+			}
 			off -= n;
 		}
 		free_page((unsigned long)buf);
 	}
-	return 1;
+	return ret;
 }
 
 #endif /* _LINUX_COREDUMP_H */
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 4db09f89b63..52507c3e138 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -280,7 +280,7 @@ static inline void put_cred(const struct cred *_cred)
  * task or by holding tasklist_lock to prevent it from being unlinked.
  */
 #define __task_cred(task) \
-	((const struct cred *)(rcu_dereference_check((task)->real_cred, rcu_read_lock_held() || lockdep_is_held(&tasklist_lock))))
+	((const struct cred *)(rcu_dereference_check((task)->real_cred, rcu_read_lock_held() || lockdep_tasklist_lock_is_held())))
 
 /**
  * get_task_cred - Get another task's objective credentials
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 5032b9a31ae..ad5ec1d0475 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -14,11 +14,21 @@
 
 /* Code active when included from pre-boot environment: */
 
+/*
+ * Some architectures want to ensure there is no local data in their
+ * pre-boot environment, so that data can arbitarily relocated (via
+ * GOT references).  This is achieved by defining STATIC_RW_DATA to
+ * be null.
+ */
+#ifndef STATIC_RW_DATA
+#define STATIC_RW_DATA static
+#endif
+
 /* A trivial malloc implementation, adapted from
  *  malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
  */
-static unsigned long malloc_ptr;
-static int malloc_count;
+STATIC_RW_DATA unsigned long malloc_ptr;
+STATIC_RW_DATA int malloc_count;
 
 static void *malloc(int size)
 {
diff --git a/include/linux/dm9000.h b/include/linux/dm9000.h
index c30879cf93b..96e87693d93 100644
--- a/include/linux/dm9000.h
+++ b/include/linux/dm9000.h
@@ -23,7 +23,7 @@
 #define DM9000_PLATF_NO_EEPROM	(0x0010)
 #define DM9000_PLATF_SIMPLE_PHY (0x0020)  /* Use NSR to find LinkStatus */
 
-/* platfrom data for platfrom device structure's platfrom_data field */
+/* platform data for platform device structure's platform_data field */
 
 struct dm9000_plat_data {
 	unsigned int	flags;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 91b76184606..ca32ed78b05 100644
--- a/include/linux/dma-mapping.h
+++ b/include/li