Keith Busch df2bd52354 nvme: introduce helper function to get ctrl state
[ Upstream commit 5c687c287c46fadb14644091823298875a5216aa ]

The controller state is typically written by another CPU, so reading it
should ensure no optimizations are taken. This is a repeated pattern in
the driver, so start with adding a convenience function that returns the
controller state with READ_ONCE().

Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-20 11:50:06 +01:00
..
2022-08-02 17:22:48 -06:00
2022-08-02 17:14:49 -06:00
2023-05-11 23:03:22 +09:00