nvmet-tcp: avoid circular locking dependency on install_queue()

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nvmet_tcp_install_queue() is driven from the ->io_work workqueue
function, but will call flush_workqueue() which might trigger
->release_work() which in itself calls flush_work on ->io_work.

To avoid that check for pending queue in disconnecting status,
and return 'controller busy' when we reached a certain threshold.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>

...

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Hannes Reinecke 2023-12-08 13:53:20 +01:00 • committed by Keith Busch

parent 06c59d4270

commit 07a29b134c

1 changed files with 15 additions and 3 deletions

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18

drivers/nvme/target/tcp.c

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