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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-26 12:45:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-26 12:45:41 -0800
commit2437dcbf555bff04e4ee8b8dba4587f946c1cd3d (patch)
treef04f3ed779c25caa933744d2d5965ca4e297f05d
parent0dbfe8ddaaab9fe5bc8672c064d3ede6cd66201a (diff)
parentb64b223aed5f8aeeb6c046f1b050a8f976b87de0 (diff)
downloadlinux-linaro-stable-2437dcbf555bff04e4ee8b8dba4587f946c1cd3d.tar.gz
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* '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()
-rw-r--r--include/linux/sched.h2
-rw-r--r--kernel/rcutorture.c8
-rw-r--r--mm/memblock.c7
3 files changed, 10 insertions, 7 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 513f52459872..2234985a5e65 100644
--- 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 88f17b8a3b1d..a58ac285fc69 100644
--- 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 2f55f19b7c86..77b5f227e1d8 100644
--- 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;