Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

79 files changed, 1218 insertions, 221 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index b27d7debc5a1..64f9f9e56ac5 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -327,21 +327,31 @@ extern void __audit_getname(const char *name);
 extern void audit_putname(const char *name);
 extern void __audit_inode(const char *name, const struct inode *inode);
 extern void __audit_inode_child(const char *dname, const struct inode *inode,
-				unsigned long pino);
+				const struct inode *parent);
+extern void __audit_inode_update(const struct inode *inode);
+static inline int audit_dummy_context(void)
+{
+	void *p = current->audit_context;
+	return !p || *(int *)p;
+}
 static inline void audit_getname(const char *name)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		__audit_getname(name);
 }
 static inline void audit_inode(const char *name, const struct inode *inode) {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		__audit_inode(name, inode);
 }
 static inline void audit_inode_child(const char *dname, 
-				     const struct inode *inode, 
-				     unsigned long pino) {
-	if (unlikely(current->audit_context))
-		__audit_inode_child(dname, inode, pino);
+				     const struct inode *inode,
+				     const struct inode *parent) {
+	if (unlikely(!audit_dummy_context()))
+		__audit_inode_child(dname, inode, parent);
+}
+static inline void audit_inode_update(const struct inode *inode) {
+	if (unlikely(!audit_dummy_context()))
+		__audit_inode_update(inode);
 }
 
 				/* Private API (for audit.c only) */
@@ -365,57 +375,61 @@ extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
 
 static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_ipc_obj(ipcp);
 	return 0;
 }
 static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_ipc_set_perm(qbytes, uid, gid, mode);
 	return 0;
 }
 static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_mq_open(oflag, mode, u_attr);
 	return 0;
 }
 static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
 	return 0;
 }
 static inline int audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
 	return 0;
 }
 static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_mq_notify(mqdes, u_notification);
 	return 0;
 }
 static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
 {
-	if (unlikely(current->audit_context))
+	if (unlikely(!audit_dummy_context()))
 		return __audit_mq_getsetattr(mqdes, mqstat);
 	return 0;
 }
+extern int audit_n_rules;
 #else
 #define audit_alloc(t) ({ 0; })
 #define audit_free(t) do { ; } while (0)
 #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
 #define audit_syscall_exit(f,r) do { ; } while (0)
+#define audit_dummy_context() 1
 #define audit_getname(n) do { ; } while (0)
 #define audit_putname(n) do { ; } while (0)
 #define __audit_inode(n,i) do { ; } while (0)
 #define __audit_inode_child(d,i,p) do { ; } while (0)
+#define __audit_inode_update(i) do { ; } while (0)
 #define audit_inode(n,i) do { ; } while (0)
 #define audit_inode_child(d,i,p) do { ; } while (0)
+#define audit_inode_update(i) do { ; } while (0)
 #define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
 #define audit_get_loginuid(c) ({ -1; })
 #define audit_ipc_obj(i) ({ 0; })
@@ -430,6 +444,7 @@ static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
 #define audit_mq_timedreceive(d,l,p,t) ({ 0; })
 #define audit_mq_notify(d,n) ({ 0; })
 #define audit_mq_getsetattr(d,s) ({ 0; })
+#define audit_n_rules 0
 #endif
 
 #ifdef CONFIG_AUDIT
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index a7e8cef73d15..7520cc1ff9e2 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -11,7 +11,7 @@ enum blktrace_cat {
 	BLK_TC_READ	= 1 << 0,	/* reads */
 	BLK_TC_WRITE	= 1 << 1,	/* writes */
 	BLK_TC_BARRIER	= 1 << 2,	/* barrier */
-	BLK_TC_SYNC	= 1 << 3,	/* barrier */
+	BLK_TC_SYNC	= 1 << 3,	/* sync IO */
 	BLK_TC_QUEUE	= 1 << 4,	/* queueing/merging */
 	BLK_TC_REQUEUE	= 1 << 5,	/* requeueing */
 	BLK_TC_ISSUE	= 1 << 6,	/* issue */
@@ -19,6 +19,7 @@ enum blktrace_cat {
 	BLK_TC_FS	= 1 << 8,	/* fs requests */
 	BLK_TC_PC	= 1 << 9,	/* pc requests */
 	BLK_TC_NOTIFY	= 1 << 10,	/* special message */
+	BLK_TC_AHEAD	= 1 << 11,	/* readahead */
 
 	BLK_TC_END	= 1 << 15,	/* only 16-bits, reminder */
 };
@@ -147,7 +148,7 @@ static inline void blk_add_trace_rq(struct request_queue *q, struct request *rq,
 				    u32 what)
 {
 	struct blk_trace *bt = q->blk_trace;
-	int rw = rq->flags & 0x07;
+	int rw = rq->flags & 0x03;
 
 	if (likely(!bt))
 		return;
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 22866fa2d960..1021f508d82c 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -91,7 +91,7 @@ static inline void *alloc_remap(int nid, unsigned long size)
 }
 #endif
 
-extern unsigned long nr_kernel_pages;
+extern unsigned long __meminitdata nr_kernel_pages;
 extern unsigned long nr_all_pages;
 
 extern void *__init alloc_large_system_hash(const char *tablename,
diff --git a/include/linux/cn_proc.h b/include/linux/cn_proc.h
index dbb7769009be..1c86d65bc4b9 100644
--- a/include/linux/cn_proc.h
+++ b/include/linux/cn_proc.h
@@ -57,7 +57,8 @@ struct proc_event {
 		PROC_EVENT_EXIT = 0x80000000
 	} what;
 	__u32 cpu;
-	struct timespec timestamp;
+	__u64 __attribute__((aligned(8))) timestamp_ns;
+		/* Number of nano seconds since system boot */
 	union { /* must be last field of proc_event struct */
 		struct {
 			__u32 err;
diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h
index 269d000bb2a3..bea0255196c4 100644
--- a/include/linux/compat_ioctl.h
+++ b/include/linux/compat_ioctl.h
@@ -216,6 +216,7 @@ COMPATIBLE_IOCTL(VT_RESIZE)
 COMPATIBLE_IOCTL(VT_RESIZEX)
 COMPATIBLE_IOCTL(VT_LOCKSWITCH)
 COMPATIBLE_IOCTL(VT_UNLOCKSWITCH)
+COMPATIBLE_IOCTL(VT_GETHIFONTMASK)
 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
 COMPATIBLE_IOCTL(RTC_AIE_ON)
 COMPATIBLE_IOCTL(RTC_AIE_OFF)
diff --git a/include/linux/completion.h b/include/linux/completion.h
index 251c41e3ddd5..268c5a4a2bd4 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -18,6 +18,9 @@ struct completion {
 #define COMPLETION_INITIALIZER(work) \
 	{ 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) }
 
+#define COMPLETION_INITIALIZER_ONSTACK(work) \
+	({ init_completion(&work); work; })
+
 #define DECLARE_COMPLETION(work) \
 	struct completion work = COMPLETION_INITIALIZER(work)
 
@@ -28,7 +31,7 @@ struct completion {
  */
 #ifdef CONFIG_LOCKDEP
 # define DECLARE_COMPLETION_ONSTACK(work) \
-	struct completion work = ({ init_completion(&work); work; })
+	struct completion work = COMPLETION_INITIALIZER_ONSTACK(work)
 #else
 # define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
 #endif
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index f8e5587a0f92..25423f79bf9f 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -9,6 +9,7 @@
  * to achieve effects such as fast scrolling by changing the origin.
  */
 
+#include <linux/wait.h>
 #include <linux/vt.h>
 
 struct vt_struct;
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 44a11f1ccaf2..8fb344a9abd8 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -48,7 +48,6 @@ static inline void unregister_cpu_notifier(struct notifier_block *nb)
 {
 }
 #endif
-extern int current_in_cpu_hotplug(void);
 
 int cpu_up(unsigned int cpu);
 
@@ -61,10 +60,6 @@ static inline int register_cpu_notifier(struct notifier_block *nb)
 static inline void unregister_cpu_notifier(struct notifier_block *nb)
 {
 }
-static inline int current_in_cpu_hotplug(void)
-{
-	return 0;
-}
 
 #endif /* CONFIG_SMP */
 extern struct sysdev_class cpu_sysdev_class;
@@ -73,7 +68,6 @@ extern struct sysdev_class cpu_sysdev_class;
 /* Stop CPUs going up and down. */
 extern void lock_cpu_hotplug(void);
 extern void unlock_cpu_hotplug(void);
-extern int lock_cpu_hotplug_interruptible(void);
 #define hotcpu_notifier(fn, pri) {				\
 	static struct notifier_block fn##_nb =			\
 		{ .notifier_call = fn, .priority = pri };	\
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 35e137636b0b..4ea39fee99c7 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -172,9 +172,6 @@ extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
 				   unsigned int relation);
 
 
-/* pass an event to the cpufreq governor */
-int cpufreq_governor(unsigned int cpu, unsigned int event);
-
 int cpufreq_register_governor(struct cpufreq_governor *governor);
 void cpufreq_unregister_governor(struct cpufreq_governor *governor);
 
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 6a7047851e48..88dafa246d87 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -1,6 +1,8 @@
 #ifndef __LINUX_DEBUG_LOCKING_H
 #define __LINUX_DEBUG_LOCKING_H
 
+struct task_struct;
+
 extern int debug_locks;
 extern int debug_locks_silent;
 
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
new file mode 100644
index 000000000000..11487b6e7127
--- /dev/null
+++ b/include/linux/delayacct.h
@@ -0,0 +1,117 @@
+/* delayacct.h - per-task delay accounting
+ *
+ * Copyright (C) Shailabh Nagar, IBM Corp. 2006
+ *
+ * This program is free software;  you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ * the GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_DELAYACCT_H
+#define _LINUX_DELAYACCT_H
+
+#include <linux/sched.h>
+#include <linux/taskstats_kern.h>
+
+/*
+ * Per-task flags relevant to delay accounting
+ * maintained privately to avoid exhausting similar flags in sched.h:PF_*
+ * Used to set current->delays->flags
+ */
+#define DELAYACCT_PF_SWAPIN	0x00000001	/* I am doing a swapin */
+
+#ifdef CONFIG_TASK_DELAY_ACCT
+
+extern int delayacct_on;	/* Delay accounting turned on/off */
+extern kmem_cache_t *delayacct_cache;
+extern void delayacct_init(void);
+extern void __delayacct_tsk_init(struct task_struct *);
+extern void __delayacct_tsk_exit(struct task_struct *);
+extern void __delayacct_blkio_start(void);
+extern void __delayacct_blkio_end(void);
+extern int __delayacct_add_tsk(struct taskstats *, struct task_struct *);
+extern __u64 __delayacct_blkio_ticks(struct task_struct *);
+
+static inline void delayacct_set_flag(int flag)
+{
+	if (current->delays)
+		current->delays->flags |= flag;
+}
+
+static inline void delayacct_clear_flag(int flag)
+{
+	if (current->delays)
+		current->delays->flags &= ~flag;
+}
+
+static inline void delayacct_tsk_init(struct task_struct *tsk)
+{
+	/* reinitialize in case parent's non-null pointer was dup'ed*/
+	tsk->delays = NULL;
+	if (delayacct_on)
+		__delayacct_tsk_init(tsk);
+}
+
+static inline void delayacct_tsk_exit(struct task_struct *tsk)
+{
+	if (tsk->delays)
+		__delayacct_tsk_exit(tsk);
+}
+
+static inline void delayacct_blkio_start(void)
+{
+	if (current->delays)
+		__delayacct_blkio_start();
+}
+
+static inline void delayacct_blkio_end(void)
+{
+	if (current->delays)
+		__delayacct_blkio_end();
+}
+
+static inline int delayacct_add_tsk(struct taskstats *d,
+					struct task_struct *tsk)
+{
+	if (!delayacct_on || !tsk->delays)
+		return 0;
+	return __delayacct_add_tsk(d, tsk);
+}
+
+static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk)
+{
+	if (tsk->delays)
+		return __delayacct_blkio_ticks(tsk);
+	return 0;
+}
+
+#else
+static inline void delayacct_set_flag(int flag)
+{}
+static inline void delayacct_clear_flag(int flag)
+{}
+static inline void delayacct_init(void)
+{}
+static inline void delayacct_tsk_init(struct task_struct *tsk)
+{}
+static inline void delayacct_tsk_exit(struct task_struct *tsk)
+{}
+static inline void delayacct_blkio_start(void)
+{}
+static inline void delayacct_blkio_end(void)
+{}
+static inline int delayacct_add_tsk(struct taskstats *d,
+					struct task_struct *tsk)
+{ return 0; }
+static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk)
+{ return 0; }
+#endif /* CONFIG_TASK_DELAY_ACCT */
+
+#endif
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 0cf0bea010fe..9631dddae348 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -60,6 +60,16 @@ struct elf_prstatus
 	long	pr_instr;		/* Current instruction */
 #endif
 	elf_gregset_t pr_reg;	/* GP registers */
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+	/* When using FDPIC, the loadmap addresses need to be communicated
+	 * to GDB in order for GDB to do the necessary relocations.  The
+	 * fields (below) used to communicate this information are placed
+	 * immediately after ``pr_reg'', so that the loadmap addresses may</