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Although kfree is a non-sleep function, it is possible to enter a long chain of calls probabilistically, so it looks better to move kfree from alloc_ucounts() out of the critical zone of ucounts_lock. Link: https://lkml.kernel.org/r/1733458427-11794-1-git-send-email-mengensun@tencent.com Signed-off-by: MengEn Sun <mengensun@tencent.com> Reviewed-by: YueHong Wu <yuehongwu@tencent.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andrei Vagin <avagin@google.com> Cc: Joel Granados <joel.granados@kernel.org> Cc: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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.