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| author | Christoph Hellwig <hch@lst.de> | 2020-06-27 09:31:53 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-06-29 09:09:08 -0600 |
| commit | a5b97526bf2860fe8306959f19ee428d1f5cc732 (patch) | |
| tree | 8f3c46c26cb255774957970073be840bdc23af9f /include/dt-bindings/arm | |
| parent | 8c5462875224a6d81683e733087f501f58fccd4c (diff) | |
| download | lwn-a5b97526bf2860fe8306959f19ee428d1f5cc732.tar.gz lwn-a5b97526bf2860fe8306959f19ee428d1f5cc732.zip | |
block: bypass blkg_tryget_closest for the root_blkg
The root_blkg is only torn down at the very end of removing a queue.
So in the I/O submission path is always has a life reference and we
can just grab another one using blkg_get instead of doing a tryget
and parent walk that won't lead anywhere.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/dt-bindings/arm')
0 files changed, 0 insertions, 0 deletions