diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/iommu-helper.c | 8 | ||||
| -rw-r--r-- | lib/ratelimit.c | 3 | ||||
| -rw-r--r-- | lib/smp_processor_id.c | 5 |
3 files changed, 11 insertions, 5 deletions
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c index a3b8d4c3f77..889ddce2021 100644 --- a/lib/iommu-helper.c +++ b/lib/iommu-helper.c @@ -80,3 +80,11 @@ void iommu_area_free(unsigned long *map, unsigned long start, unsigned int nr) } } EXPORT_SYMBOL(iommu_area_free); + +unsigned long iommu_num_pages(unsigned long addr, unsigned long len) +{ + unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE); + + return size >> PAGE_SHIFT; +} +EXPORT_SYMBOL(iommu_num_pages); diff --git a/lib/ratelimit.c b/lib/ratelimit.c index 35136671b21..26187edcc7e 100644 --- a/lib/ratelimit.c +++ b/lib/ratelimit.c @@ -15,7 +15,6 @@ #include <linux/module.h> static DEFINE_SPINLOCK(ratelimit_lock); -static unsigned long flags; /* * __ratelimit - rate limiting @@ -26,6 +25,8 @@ static unsigned long flags; */ int __ratelimit(struct ratelimit_state *rs) { + unsigned long flags; + if (!rs->interval) return 1; diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index c4381d9516f..0f8fc22ed10 100644 --- a/lib/smp_processor_id.c +++ b/lib/smp_processor_id.c @@ -11,7 +11,6 @@ notrace unsigned int debug_smp_processor_id(void) { unsigned long preempt_count = preempt_count(); int this_cpu = raw_smp_processor_id(); - cpumask_of_cpu_ptr_declare(this_mask); if (likely(preempt_count)) goto out; @@ -23,9 +22,7 @@ notrace unsigned int debug_smp_processor_id(void) * Kernel threads bound to a single CPU can safely use * smp_processor_id(): */ - cpumask_of_cpu_ptr_next(this_mask, this_cpu); - - if (cpus_equal(current->cpus_allowed, *this_mask)) + if (cpus_equal(current->cpus_allowed, cpumask_of_cpu(this_cpu))) goto out; /* |