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9c7b0ba887
It might be inconvenient that direct open/accept deviates from the update semantics and fails if the slot is taken instead of removing a file sitting there. Implement this auto-removal. Note that removal might need to allocate and so may fail. However, if an empty slot is specified, it's guaraneed to not fail on the fd installation side for valid userspace programs. It's needed for users who can't tolerate such failures, e.g. accept where the other end never retries. Suggested-by: Franz-B. Tuneke <franz-bernhard.tuneke@tu-dortmund.de> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/c896f14ea46b0eaa6c09d93149e665c2c37979b4.1631632300.git.asml.silence@gmail.com 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.