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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 249b1eb1e6e1..a4a94e700fb9 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -105,16 +105,25 @@ static int r_show(struct seq_file *m, void *v)
105{ 105{
106 struct resource *root = m->private; 106 struct resource *root = m->private;
107 struct resource *r = v, *p; 107 struct resource *r = v, *p;
108 unsigned long long start, end;
108 int width = root->end < 0x10000 ? 4 : 8; 109 int width = root->end < 0x10000 ? 4 : 8;
109 int depth; 110 int depth;
110 111
111 for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent) 112 for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent)
112 if (p->parent == root) 113 if (p->parent == root)
113 break; 114 break;
115
116 if (file_ns_capable(m->file, &init_user_ns, CAP_SYS_ADMIN)) {
117 start = r->start;
118 end = r->end;
119 } else {
120 start = end = 0;
121 }
122
114 seq_printf(m, "%*s%0*llx-%0*llx : %s\n", 123 seq_printf(m, "%*s%0*llx-%0*llx : %s\n",
115 depth * 2, "", 124 depth * 2, "",
116 width, (unsigned long long) r->start, 125 width, start,
117 width, (unsigned long long) r->end, 126 width, end,
118 r->name ? r->name : "<BAD>"); 127 r->name ? r->name : "<BAD>");
119 return 0; 128 return 0;
120} 129}