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author | Frank van der Linden <fvdl@google.com> | 2023-10-04 18:32:48 +0300 |
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committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-19 00:34:17 +0300 |
commit | 59838b2566f6d03099743675a2e0f425813078c6 (patch) | |
tree | 18db38fad872d7c95c83822deb26c5a4fece3c8f /include/linux/memcontrol.h | |
parent | 2580d554585c52a644839864ef9238af5b030ebc (diff) | |
download | linux-59838b2566f6d03099743675a2e0f425813078c6.tar.xz |
mm, hugetlb: remove HUGETLB_CGROUP_MIN_ORDER
Originally, hugetlb_cgroup was the only hugetlb user of tail page
structure fields. So, the code defined and checked against
HUGETLB_CGROUP_MIN_ORDER to make sure pages weren't too small to use.
However, by now, tail page #2 is used to store hugetlb hwpoison and
subpool information as well. In other words, without that tail page
hugetlb doesn't work.
Acknowledge this fact by getting rid of HUGETLB_CGROUP_MIN_ORDER and
checks against it. Instead, just check for the minimum viable page order
at hstate creation time.
Link: https://lkml.kernel.org/r/20231004153248.3842997-1-fvdl@google.com
Signed-off-by: Frank van der Linden <fvdl@google.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/memcontrol.h')
0 files changed, 0 insertions, 0 deletions