urcu-qsbr: use rcu_thread_offline/rcu_thread_online instead of inlining them

[urcu.git] / urcu / compiler.h

diff --git a/urcu/compiler.h b/urcu/compiler.h
index 64d12d344a26a1fdca56fd0b1201437241b9967a..4bced2a9849846a25b8c1fd59a15cd2b03af0060 100644 (file)
--- a/urcu/compiler.h
+++ b/urcu/compiler.h
@@ -39,12 +39,12 @@
  */
 #define CMM_ACCESS_ONCE(x)     (*(volatile typeof(x) *)&(x))
 
-#ifndef max
-#define max(a,b) ((a)>(b)?(a):(b))
+#ifndef caa_max
+#define caa_max(a,b) ((a)>(b)?(a):(b))
 #endif
 
-#ifndef min
-#define min(a,b) ((a)<(b)?(a):(b))
+#ifndef caa_min
+#define caa_min(a,b) ((a)<(b)?(a):(b))
 #endif
 
 #if defined(__SIZEOF_LONG__)
@@ -55,10 +55,28 @@
 #define CAA_BITS_PER_LONG      32
 #endif
 
-#define caa_container_of(ptr, type, member)                                    \
+/*
+ * caa_container_of - Get the address of an object containing a field.
+ *
+ * @ptr: pointer to the field.
+ * @type: type of the object.
+ * @member: name of the field within the object.
+ */
+#define caa_container_of(ptr, type, member)                            \
        ({                                                              \
-               const typeof(((type *)NULL)->member) * __ptr = (ptr);   \
+               const typeof(((type *) NULL)->member) * __ptr = (ptr);  \
                (type *)((char *)__ptr - offsetof(type, member));       \
        })
 
+#define CAA_BUILD_BUG_ON_ZERO(cond) (sizeof(struct { int:-!!(cond); }))
+#define CAA_BUILD_BUG_ON(cond) ((void)BUILD_BUG_ON_ZERO(cond))
+
+/*
+ * __rcu is an annotation that documents RCU pointer accesses that need
+ * to be protected by a read-side critical section. Eventually, a static
+ * checker will be able to use this annotation to detect incorrect RCU
+ * usage.
+ */
+#define __rcu
+
 #endif /* _URCU_COMPILER_H */