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34c9f54740
1. move blk_mq_commit_rqs forward before functions need commits. 2. add queued check and only commits request if any request was queued in blk_mq_commit_rqs to keep commit behavior consistent and remove unnecessary commit. 3. split the queued clearing from blk_mq_plug_commit_rqs as it is not wanted general. 4. sync current caller of blk_mq_commit_rqs with new general blk_mq_commit_rqs. 5. document rule for unusual cases which need explicit commit_rqs. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.