[PATCH] MAINTAINERS: add entry for block io cgroup

[Konstantin Khlebnikov]

This links mailing list cgroups@xxxxxxxxxxxxxxx with related files.

$ ./scripts/get_maintainer.pl -f block/blk-cgroup.c
Jens Axboe <axboe@xxxxxxxxx> (maintainer:BLOCK LAYER)
cgroups@xxxxxxxxxxxxxxx (open list:CONTROL GROUP - BLOCK IO CONTROLLER (BLKIO))
linux-block@xxxxxxxxxxxxxxx (open list:BLOCK LAYER)
linux-kernel@xxxxxxxxxxxxxxx (open list)

Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
---
 MAINTAINERS |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 43ca94856944..906ba9ca015a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4148,6 +4148,15 @@ S:	Maintained
 F:	mm/memcontrol.c
 F:	mm/swap_cgroup.c
 
+CONTROL GROUP - BLOCK IO CONTROLLER (BLKIO)
+L:	cgroups@xxxxxxxxxxxxxxx
+F:	Documentation/cgroup-v1/blkio-controller.rst
+F:	block/blk-cgroup.c
+F:	include/linux/blk-cgroup.h
+F:	block/blk-throttle.c
+F:	block/blk-iolatency.c
+F:	block/bfq-cgroup.c
+
 CORETEMP HARDWARE MONITORING DRIVER
 M:	Fenghua Yu <fenghua.yu@xxxxxxxxx>
 L:	linux-hwmon@xxxxxxxxxxxxxxx