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Commitf8142cf94d("hugetlb: make hugetlb depends on SYSFS or SYSCTL") added dependency on SYSFS or SYSCTL but hugetlb can be used without SYSFS or SYSCTL. So this dependency is wrong and should be removed. For users with CONFIG_SYSFS or CONFIG_SYSCTL on, there should be no difference. For users have CONFIG_SYSFS and CONFIG_SYSCTL both undefined, hugetlbfs can still works perfectly well through cmdline except a possible kismet warning[1] when select CONFIG_HUGETLBFS. IMHO, it might not worth a backport. This reverts commitf8142cf94d. It overlooked the scenario of using hugetlb through boot parameters when it was submitted. Link: https://lkml.kernel.org/r/20250826030955.2898709-1-linmiaohe@huawei.com Link: https://lore.kernel.org/all/5c99458f-4a91-485f-8a35-3618a992e2e4@csgroup.eu/ [1] Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202508222032.bwJsQPZ1-lkp@intel.com/ Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Cc: David Hildenbrand <david@redhat.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Oscar Salvador <osalvador@suse.de> 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.