Comment 3 for bug 1810998

Patch v2 series posted to the kernel-team mailing list:

[SRU B][PATCH v2 0/7] blk-wbt: fix for LP#1810998
https://lists.ubuntu.com/archives/kernel-team/2019-January/097831.html

[SRU C][PATCH v2 0/6] blk-wbt: fix for LP#1810998
https://lists.ubuntu.com/archives/kernel-team/2019-January/097840.html