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Diffstat (limited to 'include/linux/uidgid.h')
-rw-r--r--include/linux/uidgid.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 2d1f9b627f91..03835522dfcb 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -29,6 +29,7 @@ typedef struct {
#define KUIDT_INIT(value) (kuid_t){ value }
#define KGIDT_INIT(value) (kgid_t){ value }
+#ifdef CONFIG_MULTIUSER
static inline uid_t __kuid_val(kuid_t uid)
{
return uid.val;
@@ -38,6 +39,17 @@ static inline gid_t __kgid_val(kgid_t gid)
{
return gid.val;
}
+#else
+static inline uid_t __kuid_val(kuid_t uid)
+{
+ return 0;
+}
+
+static inline gid_t __kgid_val(kgid_t gid)
+{
+ return 0;
+}
+#endif
#define GLOBAL_ROOT_UID KUIDT_INIT(0)
#define GLOBAL_ROOT_GID KGIDT_INIT(0)
@@ -97,12 +109,12 @@ static inline bool gid_lte(kgid_t left, kgid_t right)
static inline bool uid_valid(kuid_t uid)
{
- return !uid_eq(uid, INVALID_UID);
+ return __kuid_val(uid) != (uid_t) -1;
}
static inline bool gid_valid(kgid_t gid)
{
- return !gid_eq(gid, INVALID_GID);
+ return __kgid_val(gid) != (gid_t) -1;
}
#ifdef CONFIG_USER_NS