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c8bd84f73f
Don't decrease the number of poisoned pages in page_alloc.c, let the memory-failure.c do inc/dec poisoned pages only. Also simplify unpoison_memory(), only decrease the number of poisoned pages when: - TestClearPageHWPoison() succeed - put_page_back_buddy succeed After decreasing, print necessary log. Finally, remove clear_page_hwpoison() and unpoison_taken_off_page(). Link: https://lkml.kernel.org/r/20220509105641.491313-3-pizhenwei@bytedance.com Signed-off-by: zhenwei pi <pizhenwei@bytedance.com> Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.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.