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

5 files changed, 23 insertions, 3 deletions

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 03f43e2893a4..21dd56905271 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -191,7 +191,7 @@ struct ip_mc_list
 #define IGMPV3_MASK(value, nb) ((nb)>=32 ? (value) : ((1<<(nb))-1) & (value))
 #define IGMPV3_EXP(thresh, nbmant, nbexp, value) \
 	((value) < (thresh) ? (value) : \
-        ((IGMPV3_MASK(value, nbmant) | (1<<(nbmant+nbexp))) << \
+        ((IGMPV3_MASK(value, nbmant) | (1<<(nbmant))) << \
          (IGMPV3_MASK((value) >> (nbmant), nbexp) + (nbexp))))
 
 #define IGMPV3_QQIC(value) IGMPV3_EXP(0x80, 4, 3, value)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 24b611147adb..b9b5e4ba166a 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -30,8 +30,10 @@ extern const char linux_banner[];
 
 #define STACK_MAGIC	0xdeadbeef
 
+#define ALIGN(x,a)		__ALIGN_MASK(x,(typeof(x))(a)-1)
+#define __ALIGN_MASK(x,mask)	(((x)+(mask))&~(mask))
+
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#define ALIGN(x,a) (((x)+(a)-1UL)&~((a)-1UL))
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index f6baecdeecd6..971d1c6dfc4b 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -45,8 +45,10 @@ static inline void exit_task_namespaces(struct task_struct *p)
 {
 	struct nsproxy *ns = p->nsproxy;
 	if (ns) {
-		put_nsproxy(ns);
+		task_lock(p);
 		p->nsproxy = NULL;
+		task_unlock(p);
+		put_nsproxy(ns);
 	}
 }
 #endif
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index b800d2d68b32..8451052ca66f 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -183,13 +183,27 @@ do {								\
 #define read_lock(lock)			_read_lock(lock)
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
+
 #define spin_lock_irqsave(lock, flags)	flags = _spin_lock_irqsave(lock)
 #define read_lock_irqsave(lock, flags)	flags = _read_lock_irqsave(lock)
 #define write_lock_irqsave(lock, flags)	flags = _write_lock_irqsave(lock)
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#define spin_lock_irqsave_nested(lock, flags, subclass) \
+	flags = _spin_lock_irqsave_nested(lock, subclass)
+#else
+#define spin_lock_irqsave_nested(lock, flags, subclass) \
+	flags = _spin_lock_irqsave(lock)
+#endif
+
 #else
+
 #define spin_lock_irqsave(lock, flags)	_spin_lock_irqsave(lock, flags)
 #define read_lock_irqsave(lock, flags)	_read_lock_irqsave(lock, flags)
 #define write_lock_irqsave(lock, flags)	_write_lock_irqsave(lock, flags)
+#define spin_lock_irqsave_nested(lock, flags, subclass)	\
+	spin_lock_irqsave(lock, flags)
+
 #endif
 
 #define spin_lock_irq(lock)		_spin_lock_irq(lock)
diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index 8828b8155e9c..8a2307ce7296 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -32,6 +32,8 @@ void __lockfunc _read_lock_irq(rwlock_t *lock)		__acquires(lock);
 void __lockfunc _write_lock_irq(rwlock_t *lock)		__acquires(lock);
 unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
 							__acquires(lock);
+unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass)
+							__acquires(lock);
 unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
 							__acquires(lock);
 unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)