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owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/14/2025 3:23 AM, lirongqing wrote: > From: Li RongQing > > Optimize hugetlb_pages_alloc_boot() to return immediately when > max_huge_pages is 0, avoiding unnecessary CPU cycles and the below > log message when hugepages aren't configured in the kernel command > line. > [ 3.702280] HugeTLB: allocation took 0ms with hugepage_allocation_threads=32 > > Signed-off-by: Li RongQing > --- > diff with v1: adding the reduced log messages in commit header > > mm/hugetlb.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index 753f99b..514fab5 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -3654,6 +3654,9 @@ static void __init hugetlb_hstate_alloc_pages(struct hstate *h) > return; > } > > + if (!h->max_huge_pages) > + return; > + > /* do node specific alloc */ > if (hugetlb_hstate_alloc_pages_specific_nodes(h)) > return; Looks good. Could you add stable: ? Reviewed-by: Jane Chu thanks! -jane