Changelog:
v4 -> v5:
* indent the comment
After commit 839a8e86("writeback: replace custom worker pool implementation
with unbound workqueue"), there is no bdi forker thread any more. However,
WB_REASON_FORKER_THREAD is still used due to it is TPs userland visible
and we won't be exposing exactly the same information with just a different
name.
Reviewed-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
---
include/linux/writeback.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 8b5cec4..703a48a 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 somewhat userland
+ * visible and we'll be exposing exactly the same information,
+ * so it has a mismatch name.
+ */
WB_REASON_FORKER_THREAD,
WB_REASON_MAX,
--
1.7.5.4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>