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-rw-r--r--include/linux/writeback.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index e1703ded543a..4e198ca1f685 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -47,6 +47,12 @@ enum wb_reason {
WB_REASON_LAPTOP_TIMER,
WB_REASON_FREE_MORE_MEM,
WB_REASON_FS_FREE_SPACE,
+ /*
+ * There is no bdi forker thread any more and works are done
+ * by emergency worker, however, this is TPs userland visible
+ * and we'll be exposing exactly the same information,
+ * so it has a mismatch name.
+ */
WB_REASON_FORKER_THREAD,
WB_REASON_MAX,