-/**
- * file_ns_capable - Determine if the file's opener had a capability in effect
- * @file: The file we want to check
- * @ns: The usernamespace we want the capability in
- * @cap: The capability to be tested for
- *
- * Return true if task that opened the file had a capability in effect
- * when the file was opened.
- *
- * This does not set PF_SUPERPRIV because the caller may not
- * actually be privileged.
- */
-bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap)
-{
- if (WARN_ON_ONCE(!cap_valid(cap)))
- return false;
-
- if (security_capable(file->f_cred, ns, cap) == 0)
- return true;
-
- return false;
-}
-EXPORT_SYMBOL(file_ns_capable);