bcache in userspace; userspace fsck

1 files changed, 31 insertions, 0 deletions

diff --git a/include/linux/bug.h b/include/linux/bug.h
new file mode 100644
index 0000000..f01e5f7
--- /dev/null
+++ b/include/linux/bug.h
@@ -0,0 +1,31 @@
+#ifndef __TOOLS_LINUX_BUG_H
+#define __TOOLS_LINUX_BUG_H
+
+#include <assert.h>
+#include <linux/compiler.h>
+
+#define BUILD_BUG_ON_NOT_POWER_OF_2(n)			\
+	BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0))
+#define BUILD_BUG_ON_ZERO(e)	(sizeof(struct { int:-!!(e); }))
+#define BUILD_BUG_ON_NULL(e)	((void *)sizeof(struct { int:-!!(e); }))
+
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+#define BUG()			do { assert(0); unreachable(); } while (0)
+#define BUG_ON(cond)		assert(!(cond))
+
+#define WARN_ON_ONCE(cond)	assert(!(cond))
+#define WARN_ONCE(cond, msg)	assert(!(cond))
+
+#define __WARN()		assert(0)
+#define __WARN_printf(arg...)	assert(0)
+#define WARN(cond, ...)		assert(!(cond))
+
+#define WARN_ON(condition) ({						\
+	int __ret_warn_on = !!(condition);				\
+	if (unlikely(__ret_warn_on))					\
+		__WARN();						\
+	unlikely(__ret_warn_on);					\
+})
+
+#endif /* __TOOLS_LINUX_BUG_H */