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7cb1d7ef66
Explicit memcg uncharging is not needed when the memcg accounting has the same lifespan of the page/folio. That becomes the case for khugepaged after Yang & Zach's recent rework so the hpage will be allocated for each collapse rather than being cached. Cleanup the explicit memcg uncharge in khugepaged failure path and leave that for put_page(). Link: https://lkml.kernel.org/r/20230303151218.311015-1-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Suggested-by: Zach O'Keefe <zokeefe@google.com> Reviewed-by: Zach O'Keefe <zokeefe@google.com> Reviewed-by: Yang Shi <shy828301@gmail.com> Cc: David Stevens <stevensd@chromium.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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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.