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fde04c7e27
io_queue_deferred() is not tolerant to spurious calls not completing some requests. You can have an inflight drain-marked request and another request that came after and got queued into the drain list. Now, if io_queue_deferred() is called before the first request completes, it'll check the 2nd req with req_need_defer(), find that there is no drain flag set, and queue it for execution. To make io_queue_deferred() work, it should at least check sequences for the first request, and then we need also need to check if there is another drain request creating another bubble. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/972bde11b7d4ef25b3f5e3fd34f80e4d2aa345b8.1746788718.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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| README | ||
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.