6 files changed, 33 insertions, 29 deletions

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 90c0e82b650c..b0237122b24e 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -574,7 +574,7 @@ static int __init init_kprobes(void)
                 INIT_HLIST_HEAD(&kretprobe_inst_table[i]);
         }
 
-        err = arch_init();
+        err = arch_init_kprobes();
         if (!err)
                 err = register_die_notifier(&kprobe_exceptions_nb);
 
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index fb8de63c2919..c51a4d96d4eb 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -234,6 +234,16 @@ static int software_resume(void)
 {
         int error;
 
+        if (!swsusp_resume_device) {
+                if (!strlen(resume_file))
+                        return -ENOENT;
+                swsusp_resume_device = name_to_dev_t(resume_file);
+                pr_debug("swsusp: Resume From Partition %s\n", resume_file);
+        } else {
+                pr_debug("swsusp: Resume From Partition %d:%d\n",
+                         MAJOR(swsusp_resume_device), MINOR(swsusp_resume_device));
+        }
+
         if (noresume) {
                 /**
                  * FIXME: If noresume is specified, we need to find the partition
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 0a086640bcfc..3bd0d261818f 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -59,6 +59,7 @@ int freeze_processes(void)
         int todo;
         unsigned long start_time;
         struct task_struct *g, *p;
+        unsigned long flags;
 
         printk( "Stopping tasks: " );
         start_time = jiffies;
@@ -66,12 +67,9 @@ int freeze_processes(void)
                 todo = 0;
                 read_lock(&tasklist_lock);
                 do_each_thread(g, p) {
-                        unsigned long flags;
                         if (!freezeable(p))
                                 continue;
-                        if ((frozen(p)) ||
-                            (p->state == TASK_TRACED) ||
-                            (p->state == TASK_STOPPED))
+                        if (frozen(p))
                                 continue;
 
                         freeze(p);
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index c285fc5a2320..7d7801cd01f0 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -869,13 +869,6 @@ extern asmlinkage int swsusp_arch_resume(void);
 
 asmlinkage int swsusp_save(void)
 {
-        int error = 0;
-
-        if ((error = swsusp_swap_check())) {
-                printk(KERN_ERR "swsusp: FATAL: cannot find swap device, try "
-                                "swapon -a!\n");
-                return error;
-        }
         return suspend_prepare_image();
 }
 
@@ -892,14 +885,20 @@ int swsusp_suspend(void)
          * at resume time, and evil weirdness ensues.
          */
         if ((error = device_power_down(PMSG_FREEZE))) {
-                printk(KERN_ERR "Some devices failed to power down, aborting suspend\n");
                 local_irq_enable();
-                swsusp_free();
                 return error;
         }
+
+        if ((error = swsusp_swap_check())) {
+                printk(KERN_ERR "swsusp: FATAL: cannot find swap device, try "
+                                "swapon -a!\n");
+                local_irq_enable();
+                return error;
+        }
+
         save_processor_state();
         if ((error = swsusp_arch_suspend()))
-                swsusp_free();
+                printk("Error %d suspending\n", error);
         /* Restore control flow magically appears here */
         restore_processor_state();
         BUG_ON (nr_copy_pages_check != nr_copy_pages);
@@ -1166,9 +1165,9 @@ static int bio_write_page(pgoff_t page_off, void * page)
 static const char * sanity_check(void)
 {
         dump_info();
-        if(swsusp_info.version_code != LINUX_VERSION_CODE)
+        if (swsusp_info.version_code != LINUX_VERSION_CODE)
                 return "kernel version";
-        if(swsusp_info.num_physpages != num_physpages)
+        if (swsusp_info.num_physpages != num_physpages)
                 return "memory size";
         if (strcmp(swsusp_info.uts.sysname,system_utsname.sysname))
                 return "system type";
@@ -1356,16 +1355,6 @@ int swsusp_check(void)
 {
         int error;
 
-        if (!swsusp_resume_device) {
-                if (!strlen(resume_file))
-                        return -ENOENT;
-                swsusp_resume_device = name_to_dev_t(resume_file);
-                pr_debug("swsusp: Resume From Partition %s\n", resume_file);
-        } else {
-                pr_debug("swsusp: Resume From Partition %d:%d\n",
-                         MAJOR(swsusp_resume_device), MINOR(swsusp_resume_device));
-        }
-
         resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ);
         if (!IS_ERR(resume_bdev)) {
                 set_blocksize(resume_bdev, PAGE_SIZE);
diff --git a/kernel/profile.c b/kernel/profile.c
index ad8cbb75ffa2..f89248e6d704 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -35,11 +35,11 @@ struct profile_hit {
 #define NR_PROFILE_GRP          (NR_PROFILE_HIT/PROFILE_GRPSZ)
 
 /* Oprofile timer tick hook */
-int (*timer_hook)(struct pt_regs *);
+int (*timer_hook)(struct pt_regs *) __read_mostly;
 
 static atomic_t *prof_buffer;
 static unsigned long prof_len, prof_shift;
-static int prof_on;
+static int prof_on __read_mostly;
 static cpumask_t prof_cpu_mask = CPU_MASK_ALL;
 #ifdef CONFIG_SMP
 static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
diff --git a/kernel/sched.c b/kernel/sched.c
index 5f2182d42241..4107db0dc091 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3877,6 +3877,13 @@ asmlinkage long sys_sched_yield(void)
 
 static inline void __cond_resched(void)
 {
+        /*
+         * The BKS might be reacquired before we have dropped
+         * PREEMPT_ACTIVE, which could trigger a second
+         * cond_resched() call.
+         */
+        if (unlikely(preempt_count()))
+                return;
         do {
                 add_preempt_count(PREEMPT_ACTIVE);
                 schedule();