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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-26 12:45:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-26 12:45:41 -0800 |
| commit | 2437dcbf555bff04e4ee8b8dba4587f946c1cd3d (patch) | |
| tree | f04f3ed779c25caa933744d2d5965ca4e297f05d | |
| parent | 0dbfe8ddaaab9fe5bc8672c064d3ede6cd66201a (diff) | |
| parent | b64b223aed5f8aeeb6c046f1b050a8f976b87de0 (diff) | |
| download | linux-stable-2437dcbf555bff04e4ee8b8dba4587f946c1cd3d.tar.gz linux-stable-2437dcbf555bff04e4ee8b8dba4587f946c1cd3d.tar.bz2 linux-stable-2437dcbf555bff04e4ee8b8dba4587f946c1cd3d.zip | |
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.h | 2 | ||||
| -rw-r--r-- | kernel/rcutorture.c | 8 | ||||
| -rw-r--r-- | mm/memblock.c | 7 |
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; |