LU-12780 osd: use native kthreads for scrub.

[fs/lustre-release.git] / libcfs / include / libcfs / linux / linux-wait.h

diff --git a/libcfs/include/libcfs/linux/linux-wait.h b/libcfs/include/libcfs/linux/linux-wait.h
index 67aece9..f0f7f69 100644 (file)
--- a/libcfs/include/libcfs/linux/linux-wait.h
+++ b/libcfs/include/libcfs/linux/linux-wait.h
@@ -136,6 +136,20 @@ do {                                                                       \
                __ret = __wait_var_event_timeout(var, condition, timeout); \
        __ret;                                                          \
 })
+#else /* !HAVE_WAIT_VAR_EVENT */
+/* linux-3.10.0-1062.el7 defines wait_var_event_timeout() using
+ * __wait_cond_timeout(), but doesn't define __wait_cond_timeout !!!
+ */
+# ifndef __wait_cond_timeout
+# define ___wait_cond_timeout(condition)                               \
+({                                                                     \
+       bool __cond = (condition);                                      \
+       if (__cond && !__ret)                                           \
+               __ret = 1;                                              \
+       __cond || !__ret;                                               \
+})
+# endif /* __wait_cond_timeout */
+
 #endif /* ! HAVE_WAIT_VAR_EVENT */
 
 /*