nvme-multipath: defer partition scanning

Browse source

[ Upstream commit 1f021341ee ]

We need to suppress the partition scan from occuring within the
controller's scan_work context. If a path error occurs here, the IO will
wait until a path becomes available or all paths are torn down, but that
action also occurs within scan_work, so it would deadlock. Defer the
partion scan to a different context that does not block scan_work.

Reported-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Keith Busch 2024-10-15 07:30:17 -07:00 • committed by Greg Kroah-Hartman

parent 3406bfc813

commit 4a57f42e5e

2 changed files with 34 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

33

drivers/nvme/host/multipath.c

View file

1

drivers/nvme/host/nvme.h

View file