mm/hotplug: invalid PFNs from pfn_to_online_page()

[mirror_ubuntu-bionic-kernel.git] / include / linux / projid.h

diff --git a/include/linux/projid.h b/include/linux/projid.h
index 613730622a1a68436ec29a8ae6d08f3c4a24aeca..4b19e96b875e5e8ef3dadc4f3dc3b9e766444de1 100644 (file)
--- a/include/linux/projid.h
+++ b/include/linux/projid.h
@@ -48,6 +48,11 @@ static inline bool projid_valid(kprojid_t projid)
        return !projid_eq(projid, INVALID_PROJID);
 }
 
+static inline bool projid_valid_eq(kprojid_t left, kprojid_t right)
+{
+       return projid_eq(left, right) && projid_valid(left);
+}
+
 #ifdef CONFIG_USER_NS
 
 extern kprojid_t make_kprojid(struct user_namespace *from, projid_t projid);