nvmet: add nvmet_req_subsys() helper
Just like what we have to get the passthru ctrl from the req, add an helper to get the subsystem associated with the nvmet_req() instead of open coding the chain of structures. Signed-off-by:Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by:
Christoph Hellwig <hch@lst.de>
parent
d86481e9
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