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f361e2462e
In already hwpoisoned case, memory_failure() is supposed to return with releasing the page refcount taken for error handling. But currently the refcount is not released when called with MF_COUNT_INCREASED, which makes page refcount inconsistent. This should be rare and non-critical, but it might be inconvenient in testing (unpoison doesn't work). Link: https://lkml.kernel.org/r/20220408135323.1559401-3-naoya.horiguchi@linux.dev Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Suggested-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Yang Shi <shy828301@gmail.com> 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 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.