[PATCH] trace: replace WB_REASON_FOREIGN_FLUSH with a string

[brookxu]

From: Chunguang Xu <brookxu@xxxxxxxxxxx>

Now WB_REASON_FOREIGN_FLUSH is displayed as a number, maybe a
string is better.

Signed-off-by: Chunguang Xu <brookxu@xxxxxxxxxxx>
---
 include/trace/events/writeback.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 1efa463..7c78c04 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -36,7 +36,8 @@
 	EM( WB_REASON_PERIODIC,			"periodic")		\
 	EM( WB_REASON_LAPTOP_TIMER,		"laptop_timer")		\
 	EM( WB_REASON_FS_FREE_SPACE,		"fs_free_space")	\
-	EMe(WB_REASON_FORKER_THREAD,		"forker_thread")
+	EM( WB_REASON_FORKER_THREAD,		"forker_thread")	\
+	EMe(WB_REASON_FOREIGN_FLUSH,            "foreign_flush")
 
 WB_WORK_REASON
 
-- 
1.8.3.1