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fc5488651c
Patch series "z3fold: stability / rt fixes". Address z3fold stability issues under stress load, primarily in the reclaim and free aspects. Besides, it fixes the locking problems that were only seen in real-time kernel configuration. This patch (of 3): There used to be two places in the code where slots could be freed, namely when freeing the last allocated handle from the slots and when releasing the z3fold header these slots aree linked to. The logic to decide on whether to free certain slots was complicated and error prone in both functions and it led to failures in RT case. To fix that, make free_handle() the single point of freeing slots. Link: https://lkml.kernel.org/r/20201209145151.18994-1-vitaly.wool@konsulko.com Link: https://lkml.kernel.org/r/20201209145151.18994-2-vitaly.wool@konsulko.com Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> Tested-by: Mike Galbraith <efault@gmx.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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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 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.