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-rw-r--r--kernel/capability.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/kernel/capability.c b/kernel/capability.c
index 0101e847603e..33e51e78c2d8 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -486,17 +486,22 @@ asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data)
486 return ret; 486 return ret;
487} 487}
488 488
489int __capable(struct task_struct *t, int cap) 489/**
490 * capable - Determine if the current task has a superior capability in effect
491 * @cap: The capability to be tested for
492 *
493 * Return true if the current task has the given superior capability currently
494 * available for use, false if not.
495 *
496 * This sets PF_SUPERPRIV on the task if the capability is available on the
497 * assumption that it's about to be used.
498 */
499int capable(int cap)
490{ 500{
491 if (security_capable(t, cap) == 0) { 501 if (has_capability(current, cap)) {
492 t->flags |= PF_SUPERPRIV; 502 current->flags |= PF_SUPERPRIV;
493 return 1; 503 return 1;
494 } 504 }
495 return 0; 505 return 0;
496} 506}
497
498int capable(int cap)
499{
500 return __capable(current, cap);
501}
502EXPORT_SYMBOL(capable); 507EXPORT_SYMBOL(capable);