Memcg aligns memory.limit_in_bytes to PAGE_SIZE as part of the resource counter since it makes no sense to allow a partial page to be charged. As a result of the hugetlb cgroup using the resource counter, it is also aligned to PAGE_SIZE but makes no sense unless aligned to the size of the hugepage being limited. Align hugetlb cgroup limit to hugepage size. Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> --- mm/hugetlb_cgroup.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -275,6 +275,8 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of, ret = res_counter_memparse_write_strategy(buf, &val); if (ret) break; + val = ALIGN(val, 1 << (huge_page_order(&hstates[idx]) + + PAGE_SHIFT)); ret = res_counter_set_limit(&h_cg->hugepage[idx], val); break; default: -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>