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1a417f4e61
We punt close to async for the final fput(), but we log the completion even before that even in that case. We rely on the request not having a files table assigned to detect what the final async close should do. However, if we punt the async queue to __io_queue_sqe(), we'll get ->files assigned and this makes io_close_finish() think it should both close the filp again (which does no harm) AND log a new CQE event for this request. This causes duplicate CQEs. Queue the request up for async manually so we don't grab files needlessly and trigger this condition. 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.