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The comment for khugepaged_scan_sleep_millisecs incorrectly states the default scan period is 30 seconds. The actual default value in the code is 10000ms (10 seconds). This patch corrects the comment to match the code, preventing potential confusion. The incorrect comment has existed since the feature was first introduced. While at it, replace the magic value 512 by HPAGE_PMD_NR and use 'ptes'. Link: https://lkml.kernel.org/r/20251015092957.37432-1-lianux.mm@gmail.com Signed-off-by: wang lian <lianux.mm@gmail.com> Suggested-by: David Hildenbrand <david@redhat.com> Reviewed-by: Dev Jain <dev.jain@arm.com> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Lance Yang <lance.yang@linux.dev> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: SeongJae Park <sj@kernel.org> Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> Acked-by: Nico Pache <npache@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Rik van Riel <riel@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Zi Yan <ziy@nvidia.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 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.