diff options
| author | Tejun Heo <tj@kernel.org> | 2015-02-13 14:37:06 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 21:21:36 -0800 |
| commit | 0c118b7bd09a1d11731ba80421a34ea1105c5b21 (patch) | |
| tree | be234b03db60a78d856fb4c947d3424dcaf44e73 /arch/powerpc/kernel | |
| parent | 729d8e093c3ec5c662965c97accd882a75b0f93a (diff) | |
powerpc: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'. cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.
* Spurious if (len > 1) test dropped from shared_cpu_map_show().
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/cacheinfo.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c index 40198d50b4c2..ae77b7e59889 100644 --- a/arch/powerpc/kernel/cacheinfo.c +++ b/arch/powerpc/kernel/cacheinfo.c @@ -607,19 +607,16 @@ static ssize_t shared_cpu_map_show(struct kobject *k, struct kobj_attribute *att { struct cache_index_dir *index; struct cache *cache; - int len; - int n = 0; + int ret; index = kobj_to_cache_index_dir(k); cache = index->cache; - len = PAGE_SIZE - 2; - if (len > 1) { - n = cpumask_scnprintf(buf, len, &cache->shared_cpu_map); - buf[n++] = '\n'; - buf[n] = '\0'; - } - return n; + ret = scnprintf(buf, PAGE_SIZE - 1, "%*pb\n", + cpumask_pr_args(&cache->shared_cpu_map)); + buf[ret++] = '\n'; + buf[ret] = '\0'; + return ret; } static struct kobj_attribute cache_shared_cpu_map_attr = |