OSDN Git Service
(root)
/
android-x86
/
kernel.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
9e763e0
)
padata: use %*pb[l] to print bitmaps including cpumasks and nodemasks
author
Tejun Heo
<tj@kernel.org>
Fri, 13 Feb 2015 22:38:05 +0000
(14:38 -0800)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Sat, 14 Feb 2015 05:21:38 +0000
(21:21 -0800)
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.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/padata.c
patch
|
blob
|
history
diff --git
a/kernel/padata.c
b/kernel/padata.c
index
161402f
..
b38bea9
100644
(file)
--- a/
kernel/padata.c
+++ b/
kernel/padata.c
@@
-917,15
+917,10
@@
static ssize_t show_cpumask(struct padata_instance *pinst,
else
cpumask = pinst->cpumask.pcpu;
- len = bitmap_scnprintf(buf, PAGE_SIZE, cpumask_bits(cpumask),
- nr_cpu_ids);
- if (PAGE_SIZE - len < 2)
- len = -EINVAL;
- else
- len += sprintf(buf + len, "\n");
-
+ len = snprintf(buf, PAGE_SIZE, "%*pb\n",
+ nr_cpu_ids, cpumask_bits(cpumask));
mutex_unlock(&pinst->lock);
- return len;
+ return len
< PAGE_SIZE ? len : -EINVAL
;
}
static ssize_t store_cpumask(struct padata_instance *pinst,