Hello, Michal.
On Mon, Nov 11, 2019 at 02:15:44PM +0100, Michal Hocko wrote:
Signed-off-by: Tejun Heo tj@kernel.org Cc: Dennis Zhou dennis@kernel.org Cc: Konstantin Khlebnikov khlebnikov@yandex-team.ru Fixes: e8a7abf5a5bd ("writeback: disassociate inodes from dying bdi_writebacks")
Is this a stable material?
c3aab9a0bd91 ("mm/filemap.c: don't initiate writeback if mapping has no dirty pages") likely addresses larger part of the problem, but yeah it prolly makes sense to backport both for -stable.
Greg, Sasha, can you pick the following two commits for -stable?
* c3aab9a0bd91 ("mm/filemap.c: don't initiate writeback if mapping has no dirty pages")
* 65de03e25138 ("cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead")
Both are fixes for e8a7abf5a5bd ("writeback: disassociate inodes from dying bdi_writebacks") - v4.2+.
Thanks.