Merge branches 'core-fixes-for-linus', 'irq-fixes-for-linus' and 'timers-fixes-for...

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  printk: fix wrong format string iter for printk
  futex: comment requeue key reference semantics

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: fix cpumask memory leak on offstack cpumask kernels

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-timers: fix RLIMIT_CPU && setitimer(CPUCLOCK_PROF)
  posix-timers: fix RLIMIT_CPU && fork()
  timers: add missing kernel-doc

diff --git a/include/linux/irq.h b/include/linux/irq.h
index ca507c9..b7cbeed 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -487,6 +487,16 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
 #endif
 }
 
+static inline void free_desc_masks(struct irq_desc *old_desc,
+                                  struct irq_desc *new_desc)
+{
+       free_cpumask_var(old_desc->affinity);
+
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+       free_cpumask_var(old_desc->pending_mask);
+#endif
+}
+
 #else /* !CONFIG_SMP */
 
 static inline bool init_alloc_desc_masks(struct irq_desc *desc, int cpu,
@@ -500,6 +510,10 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
 {
 }
 
+static inline void free_desc_masks(struct irq_desc *old_desc,
+                                  struct irq_desc *new_desc)
+{
+}
 #endif /* CONFIG_SMP */
 
 #endif /* _LINUX_IRQ_H */

diff --git a/kernel/fork.c b/kernel/fork.c
index 989c7c2..b9e2edd 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -800,6 +800,12 @@ static void posix_cpu_timers_init_group(struct signal_struct *sig)
        sig->cputime_expires.virt_exp = cputime_zero;
        sig->cputime_expires.sched_exp = 0;
 
+       if (sig->rlim[RLIMIT_CPU].rlim_cur != RLIM_INFINITY) {
+               sig->cputime_expires.prof_exp =
+                       secs_to_cputime(sig->rlim[RLIMIT_CPU].rlim_cur);
+               sig->cputimer.running = 1;
+       }
+
        /* The timer lists. */
        INIT_LIST_HEAD(&sig->cpu_timers[0]);
        INIT_LIST_HEAD(&sig->cpu_timers[1]);
@@ -815,11 +821,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
                atomic_inc(&current->signal->live);
                return 0;
        }
-       sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
-
-       if (sig)
-               posix_cpu_timers_init_group(sig);
 
+       sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
        tsk->signal = sig;
        if (!sig)
                return -ENOMEM;
@@ -859,6 +862,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
        memcpy(sig->rlim, current->signal->rlim, sizeof sig->rlim);
        task_unlock(current->group_leader);
 
+       posix_cpu_timers_init_group(sig);
+
        acct_init_pacct(&sig->pacct);
 
        tty_audit_fork(sig);

diff --git a/kernel/futex.c b/kernel/futex.c
index 6b50a02..eef8cd2 100644 (file)
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -883,7 +883,12 @@ retry_private:
 out_unlock:
        double_unlock_hb(hb1, hb2);
 
-       /* drop_futex_key_refs() must be called outside the spinlocks. */
+       /*
+        * drop_futex_key_refs() must be called outside the spinlocks. During
+        * the requeue we moved futex_q's from the hash bucket at key1 to the
+        * one at key2 and updated their key pointer.  We no longer need to
+        * hold the references to key1.
+        */
        while (--drop_count >= 0)
                drop_futex_key_refs(&key1);
 

diff --git a/kernel/irq/numa_migrate.c b/kernel/irq/numa_migrate.c
index 243d612..44bbdcb 100644 (file)
--- a/kernel/irq/numa_migrate.c
+++ b/kernel/irq/numa_migrate.c
@@ -54,6 +54,7 @@ static bool init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
 static void free_one_irq_desc(struct irq_desc *old_desc, struct irq_desc *desc)
 {
        free_kstat_irqs(old_desc, desc);
+       free_desc_masks(old_desc, desc);
        arch_free_chip_data(old_desc, desc);
 }
 

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 8e5d9a6..bb53185 100644 (file)
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -18,7 +18,7 @@ void update_rlimit_cpu(unsigned long rlim_new)
 
        cputime = secs_to_cputime(rlim_new);
        if (cputime_eq(current->signal->it_prof_expires, cputime_zero) ||
-           cputime_lt(current->signal->it_prof_expires, cputime)) {
+           cputime_gt(current->signal->it_prof_expires, cputime)) {
                spin_lock_irq(&current->sighand->siglock);
                set_process_cpu_timer(current, CPUCLOCK_PROF, &cputime, NULL);
                spin_unlock_irq(&current->sighand->siglock);

diff --git a/kernel/timer.c b/kernel/timer.c
index b455556..cffffad 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -531,10 +531,13 @@ static void __init_timer(struct timer_list *timer,
 }
 
 /**
- * init_timer - initialize a timer.
+ * init_timer_key - initialize a timer
  * @timer: the timer to be initialized
+ * @name: name of the timer
+ * @key: lockdep class key of the fake lock used for tracking timer
+ *       sync lock dependencies
  *
- * init_timer() must be done to a timer prior calling *any* of the
+ * init_timer_key() must be done to a timer prior calling *any* of the
  * other timer functions.
  */
 void init_timer_key(struct timer_list *timer,

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index be3001f..7536ace 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1051,13 +1051,6 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
                        if (str < end)
                                *str = '%';
                        ++str;
-                       if (*fmt) {
-                               if (str < end)
-                                       *str = *fmt;
-                               ++str;
-                       } else {
-                               --fmt;
-                       }
                        break;
 
                case FORMAT_TYPE_NRCHARS: {
@@ -1339,8 +1332,6 @@ do {                                                                      \
                        break;
 
                case FORMAT_TYPE_INVALID:
-                       if (!*fmt)
-                               --fmt;
                        break;
 
                case FORMAT_TYPE_NRCHARS: {
@@ -1523,13 +1514,6 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
                        if (str < end)
                                *str = '%';
                        ++str;
-                       if (*fmt) {
-                               if (str < end)
-                                       *str = *fmt;
-                               ++str;
-                       } else {
-                               --fmt;
-                       }
                        break;
 
                case FORMAT_TYPE_NRCHARS: