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8fb7aee055
Don't rely on CQ sequence numbers for draining, as it has become messy and needs cq_extra adjustments. Instead, base it on the number of allocated requests and only allow flushing when all requests are in the drain list. As a result, cq_extra is gone, no overhead for its accounting in aux cqe posting, less bloating as it was inlined before, and it's in general simpler than trying to track where we should bump it and where it should be put back like in cases of overflow. Also, it'll likely help with cleaning and unifying some of the CQ posting helpers. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/46ece1e34320b046c06fee2498d6b4cd12a700f2.1746788718.git.asml.silence@gmail.com Link: https://lore.kernel.org/r/24497b04b004bceada496033d3c9d09ff8e81ae9.1746944903.git.asml.silence@gmail.com [axboe: fold in fix from link2] Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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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 reStructuredText 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.