[PATCH 2/2] Docs/mm: fix THP policy counts in transhuge
From: Song Hu <hidden>
Date: 2026-08-12 08:04:33
Also in:
linux-mm, lkml
Subsystem:
documentation, memory management - misc, memory management - thp (transparent huge page), the rest · Maintainers:
Jonathan Corbet, Andrew Morton, David Hildenbrand, Linus Torvalds
transhuge.rst claims seven policies for transparent_hugepage_shmem= and four for transparent_hugepage_tmpfs=. Both boot parameters are parsed by shmem_parse_huge(), which accepts six: always, within_size, advise, never, deny and force. The "four" applies only to the per-mount huge= option (shmem_param_enums_huge). Fix both counts to six. Signed-off-by: Song Hu <redacted> --- Documentation/admin-guide/mm/transhuge.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index b187d618452f..72e944f49da5 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst@@ -389,14 +389,14 @@ is not defined within a valid ``thp_anon``, its policy will default to Similarly to ``transparent_hugepage``, you can control the hugepage allocation policy for the internal shmem mount by using the kernel parameter ``transparent_hugepage_shmem=<policy>``, where ``<policy>`` is one of the -seven valid policies for shmem (``always``, ``within_size``, ``advise``, +six valid policies for shmem (``always``, ``within_size``, ``advise``, ``never``, ``deny``, and ``force``). Similarly to ``transparent_hugepage_shmem``, you can control the default hugepage allocation policy for the tmpfs mount by using the kernel parameter ``transparent_hugepage_tmpfs=<policy>``, where ``<policy>`` is one of the -four valid policies for tmpfs (``always``, ``within_size``, ``advise``, -``never``). The tmpfs mount default policy is ``never``. +six valid policies for tmpfs (``always``, ``within_size``, ``advise``, +``never``, ``deny``, and ``force``). The tmpfs mount default policy is ``never``. Additionally, Kconfig options are available to set the default hugepage policies for shmem (``CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_*``) and tmpfs
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2.43.0