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| author | Maíra Canal <mcanal@igalia.com> | 2024-11-01 13:54:05 -0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-11-07 14:14:59 -0800 |
| commit | 652e1a51465f2e8e75590bc3dd1e3a3b61020568 (patch) | |
| tree | 7620124456569e1185873fb0f0040f9a4eb3f8c2 /Documentation/admin-guide/mm/transhuge.rst | |
| parent | 4401e9d10ab0281a520b9f8c220f30f60b5c248f (diff) | |
| download | linux-652e1a51465f2e8e75590bc3dd1e3a3b61020568.tar.gz linux-652e1a51465f2e8e75590bc3dd1e3a3b61020568.tar.bz2 linux-652e1a51465f2e8e75590bc3dd1e3a3b61020568.zip | |
mm: fix docs for the kernel parameter ``thp_anon=``
If we add ``thp_anon=32,64K:always`` to the kernel command line, we
will see the following error:
[ 0.000000] huge_memory: thp_anon=32,64K:always: error parsing string, ignoring setting
This happens because the correct format isn't ``thp_anon=<size>,<size>[KMG]:<state>```,
as [KMG] must follow each number to especify its unit. So, the correct
format is ``thp_anon=<size>[KMG],<size>[KMG]:<state>```.
Therefore, adjust the documentation to reflect the correct format of the
parameter ``thp_anon=``.
Link: https://lkml.kernel.org/r/20241101165719.1074234-3-mcanal@igalia.com
Fixes: dd4d30d1cdbe ("mm: override mTHP "enabled" defaults at kernel cmdline")
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Barry Song <baohua@kernel.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lance Yang <ioworker0@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation/admin-guide/mm/transhuge.rst')
| -rw-r--r-- | Documentation/admin-guide/mm/transhuge.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst index cfdd16a52e39..a1bb495eab59 100644 --- a/Documentation/admin-guide/mm/transhuge.rst +++ b/Documentation/admin-guide/mm/transhuge.rst @@ -303,7 +303,7 @@ control by passing the parameter ``transparent_hugepage=always`` or kernel command line. Alternatively, each supported anonymous THP size can be controlled by -passing ``thp_anon=<size>,<size>[KMG]:<state>;<size>-<size>[KMG]:<state>``, +passing ``thp_anon=<size>[KMG],<size>[KMG]:<state>;<size>[KMG]-<size>[KMG]:<state>``, where ``<size>`` is the THP size (must be a power of 2 of PAGE_SIZE and supported anonymous THP) and ``<state>`` is one of ``always``, ``madvise``, ``never`` or ``inherit``. |