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author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-01-18 12:37:22 +0300 |
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committer | Jens Axboe <axboe@kernel.dk> | 2023-02-06 19:22:28 +0300 |
commit | e4ef2e05e0020db0d61b2cf451ef38a2bba33910 (patch) | |
tree | ead5c330bfc8397c92cc5141468726ee2750ce38 /.gitignore | |
parent | 984ce0a7d75b577fd84f2cc7a83e6e2d2503f90e (diff) | |
download | linux-e4ef2e05e0020db0d61b2cf451ef38a2bba33910.tar.xz |
blk-mq: simplify flush check in blk_mq_dispatch_rq_list
1. Remove check of needs_resource and ret == BLK_STS_DEV_RESOURCE.
For busy error BLK_STS*_RESOURCE, request will always be added
back to list, so need_resource will not be true and ret will
not be == BLK_STS_DEV_RESOURCE if list is empty. We could remove
these dead check.
2. Check ret of last request instead of errors
If list is empty, we only need to explicitly commit_rqs
if error happens at last request which is stored in ret. So check
ret of last request instead of errors to remove unnecessary
commit_rqs triggered by errors returned from previous request.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions