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The commit8bb649ee1d("io_uring: remove ring quiesce for io_uring_register") removed the worklow relying on reinit/resurrection of the percpu_ref, hence, initialization with that requested is a relic. This is based on code review, this causes no real bug (and theoretically can't). Technically it's a revert of commit214828962d("io_uring: initialize percpu refcounters using PERCU_REF_ALLOW_REINIT") but since the flag omission is now justified, I'm not making this a revert. Fixes:8bb649ee1d("io_uring: remove ring quiesce for io_uring_register") Signed-off-by: Michal Koutný <mkoutny@suse.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> 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.