f87442f407
Hugepages can be specified to pernode since "hugetlbfs: extend the definition of hugepages parameter to support node allocation", but the following problem is observed. Confusing behavior is observed when both 1G and 2M hugepage is set after "numa=off". cmdline hugepage settings: hugepagesz=1G hugepages=0:3,1:3 hugepagesz=2M hugepages=0:1024,1:1024 results: HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages HugeTLB registered 2.00 MiB page size, pre-allocated 1024 pages Furthermore, confusing behavior can be also observed when an invalid node behind a valid node. To fix this, never allocate any typical hugepage when an invalid parameter is received. Link: https://lkml.kernel.org/r/20220413032915.251254-3-liupeng256@huawei.com Fixes: b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter to support node allocation") Signed-off-by: Peng Liu <liupeng256@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: David Hildenbrand <david@redhat.com> Cc: Liu Yuntao <liuyuntao10@huawei.com> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Zhenguo Yao <yaozhenguo1@gmail.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.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 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.