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authorIngo Molnar <mingo@kernel.org>2016-04-23 14:12:10 +0200
committerIngo Molnar <mingo@kernel.org>2016-04-23 14:12:10 +0200
commit65cbbd037b3d7be0a40bbdb5da9d43b0fccf17ee (patch)
tree02b22c99008630010f28f45f502f55915f1014c2 /kernel/resource.c
parentMerge tag 'perf-core-for-mingo-20160415' of git://git.kernel.org/pub/scm/linu... (diff)
parentperf/core: Make sysctl_perf_cpu_time_max_percent conform to documentation (diff)
downloadlinux-65cbbd037b3d7be0a40bbdb5da9d43b0fccf17ee.tar.gz
linux-65cbbd037b3d7be0a40bbdb5da9d43b0fccf17ee.zip
Merge branch 'perf/urgent' into perf/core, to resolve conflict
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 2e78ead30934..9b5f04404152 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -105,16 +105,25 @@ static int r_show(struct seq_file *m, void *v)
{
struct resource *root = m->private;
struct resource *r = v, *p;
+ unsigned long long start, end;
int width = root->end < 0x10000 ? 4 : 8;
int depth;
for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent)
if (p->parent == root)
break;
+
+ if (file_ns_capable(m->file, &init_user_ns, CAP_SYS_ADMIN)) {
+ start = r->start;
+ end = r->end;
+ } else {
+ start = end = 0;
+ }
+
seq_printf(m, "%*s%0*llx-%0*llx : %s\n",
depth * 2, "",
- width, (unsigned long long) r->start,
- width, (unsigned long long) r->end,
+ width, start,
+ width, end,
r->name ? r->name : "<BAD>");
return 0;
}