nvmet-fcloop: allocate/free fcloop_lsreq directly

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fcloop depends on the host or the target to allocate the fcloop_lsreq
object. This means that the lifetime of the fcloop_lsreq is tied to
either the host or the target. Consequently, the host or the target must
cooperate during shutdown.

Unfortunately, this approach does not work well when the target forces a
shutdown, as there are dependencies that are difficult to resolve in a
clean way.

The simplest solution is to decouple the lifetime of the fcloop_lsreq
object by managing them directly within fcloop. Since this is not a
performance-critical path and only a small number of LS objects are used
during setup and cleanup, it does not significantly impact performance
to allocate them during normal operation.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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Daniel Wagner 2025-05-07 14:23:05 +02:00 • committed by Christoph Hellwig

parent 2b559a3eb5

commit 772042dd38

1 changed files with 45 additions and 18 deletions

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drivers/nvme/target/fcloop.c

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