Merge tag 'driver-core-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...

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

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 736a348509f7d6cfc6041d4e7f8838972c3413e3..94e2d2ffabe1a18d747fcccbe360b74389490ad0 100644 (file)
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -71,3 +71,13 @@ config F2FS_CHECK_FS
          Enables BUG_ONs which check the filesystem consistency in runtime.
 
          If you want to improve the performance, say N.
+
+config F2FS_IO_TRACE
+       bool "F2FS IO tracer"
+       depends on F2FS_FS
+       depends on FUNCTION_TRACER
+       help
+         F2FS IO trace is based on a function trace, which gathers process
+         information and block IO patterns in the filesystem level.
+
+         If unsure, say N.