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Christoph Hellwig
0c5bcc92d9
blk_mq_submit_bio has two different plug cases, one that uses full plugging and a limited plugging one. The limited plugging case is only used for a corner case that does not matter in real life: - no ->commit_rqs (so not NVMe) - no shared tags (so not SCSI) - not rotational (so no old disk or floppy driver) - must have multiple queues (so no eMMC) Remove the limited merging case and all the related junk to simplify blk_mq_submit_bio and the functions called from it. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211123160443.1315598-2-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.