printk and friends can now formap 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.
* Line termination only requires one extra space at the end of the
buffer. Use PAGE_SIZE - 1 instead of PAGE_SIZE - 2 when formatting.
This patch is dependent on the following two patches.
lib/vsprintf: implement bitmap printing through '%*pb[l]'
cpumask, nodemask: implement cpumask/nodemask_pr_args()
Please wait till the forementioned patches are merged to mainline
before applying to subsystem trees.
Signed-off-by: Tejun Heo <t...@kernel.org>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Martin Schwidefsky <schwidef...@de.ibm.com>
Cc: Heiko Carstens <heiko.carst...@de.ibm.com>
---
arch/s390/kernel/cache.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index c0b03c2..a026911 100644
--- a/arch/s390/kernel/cache.c
+++ b/arch/s390/kernel/cache.c
@@ -243,9 +243,12 @@ static ssize_t shared_cpu_map_func(struct kobject *kobj,
int type, char *buf)
int len;
index = kobj_to_cache_index_dir(kobj);
- len = type ?
- cpulist_scnprintf(buf, PAGE_SIZE - 2, cpumask_of(index->cpu)) :
- cpumask_scnprintf(buf, PAGE_SIZE - 2, cpumask_of(index->cpu));
+ if (type)
+ len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
+ cpumask_pr_args(cpumask_of(index->cpu)));
+ else
+ len = scnprintf(buf, PAGE_SIZE - 1, "%*pb",
+ cpumask_pr_args(cpumask_of(index->cpu)));
len += sprintf(&buf[len], "\n");
return len;
}
--
2.1.0
--
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