f2fs: add spin_lock to cover radix operations in IO tracer

[firefly-linux-kernel-4.4.55.git] / fs / f2fs / trace.h

diff --git a/fs/f2fs/trace.h b/fs/f2fs/trace.h
index aa6663be528c90466d7275727feb7ff5c4ff9c02..eb39fa08cd45855c6df105d7e2eabcc0ea77673e 100644 (file)
--- a/fs/f2fs/trace.h
+++ b/fs/f2fs/trace.h
@@ -34,9 +34,11 @@ struct last_io_info {
 
 extern void f2fs_trace_pid(struct page *);
 extern void f2fs_trace_ios(struct page *, struct f2fs_io_info *, int);
+extern void f2fs_build_trace_ios(void);
 #else
 #define f2fs_trace_pid(p)
 #define f2fs_trace_ios(p, i, n)
+#define f2fs_build_trace_ios()
 
 #endif
 #endif /* __F2FS_TRACE_H__ */