Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Add missing __cpuinit annotation in rcutorture code
  sched: Add "const" to is_idle_task() parameter
  rcu: Make rcutorture bool parameters really bool (core code)
  memblock: Fix alloc failure due to dumb underflow protection in memblock_find_in_range_node()

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 513f524598724d14eaf62384e40712fc1624006c..2234985a5e6546a7476cfb7801032d14dd524c0c 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2090,7 +2090,7 @@ extern struct task_struct *idle_task(int cpu);
  * is_idle_task - is the specified task an idle task?
  * @p: the task in question.
  */
-static inline bool is_idle_task(struct task_struct *p)
+static inline bool is_idle_task(const struct task_struct *p)
 {
        return p->pid == 0;
 }

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 88f17b8a3b1dac38abbdb42c6916bd52cea5f2b1..a58ac285fc69bb48d085708caf786f6f39413474 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -56,8 +56,8 @@ static int nreaders = -1;     /* # reader threads, defaults to 2*ncpus */
 static int nfakewriters = 4;   /* # fake writer threads */
 static int stat_interval;      /* Interval between stats, in seconds. */
                                /*  Defaults to "only at end of test". */
-static int verbose;            /* Print more debug info. */
-static int test_no_idle_hz;    /* Test RCU's support for tickless idle CPUs. */
+static bool verbose;           /* Print more debug info. */
+static bool test_no_idle_hz;   /* Test RCU's support for tickless idle CPUs. */
 static int shuffle_interval = 3; /* Interval between shuffles (in sec)*/
 static int stutter = 5;                /* Start/stop testing interval (in sec) */
 static int irqreader = 1;      /* RCU readers from irq (timers). */
@@ -1399,7 +1399,7 @@ rcu_torture_shutdown(void *arg)
  * Execute random CPU-hotplug operations at the interval specified
  * by the onoff_interval.
  */
-static int
+static int __cpuinit
 rcu_torture_onoff(void *arg)
 {
        int cpu;
@@ -1447,7 +1447,7 @@ rcu_torture_onoff(void *arg)
        return 0;
 }
 
-static int
+static int __cpuinit
 rcu_torture_onoff_init(void)
 {
        if (onoff_interval <= 0)

diff --git a/mm/memblock.c b/mm/memblock.c
index 2f55f19b7c86517bb5b23680c1b062f7efe2795a..77b5f227e1d86d9228ae6a67f52f18418a2beb98 100644 (file)
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -106,14 +106,17 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
        if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
                end = memblock.current_limit;
 
-       /* adjust @start to avoid underflow and allocating the first page */
-       start = max3(start, size, (phys_addr_t)PAGE_SIZE);
+       /* avoid allocating the first page */
+       start = max_t(phys_addr_t, start, PAGE_SIZE);
        end = max(start, end);
 
        for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) {
                this_start = clamp(this_start, start, end);
                this_end = clamp(this_end, start, end);
 
+               if (this_end < size)
+                       continue;
+
                cand = round_down(this_end - size, align);
                if (cand >= this_start)
                        return cand;