nvme-pci: remove nvmeq->tags

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[ Upstream commit cfa27356f8 ]

There is no real need to have a pointer to the tagset in
struct nvme_queue, as we only need it in a single place, and that place
can derive the used tagset from the device and qid trivially.  This
fixes a problem with stale pointer exposure when tagsets are reset,
and also shrinks the nvme_queue structure.  It also matches what most
other transports have done since day 1.

Reported-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Christoph Hellwig 2020-01-30 19:40:24 +01:00 • committed by Greg Kroah-Hartman

parent 5068f9ec53

commit cef2e37a0b

1 changed files with 8 additions and 15 deletions

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drivers/nvme/host/pci.c

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