Re: [PATCH] mm/hugetlb: account for allowed nodes when gathering surplus pages

On Thu, 10 Sep 2026 16:48:56 +0800 Muchun Song [off-list ref] wrote:

quoted

This fixes hugetlb mappings when, for example, a task runs with
MPOL_BIND on Node 1 while the existing free huge pages are on Node 0.

Similar issue also could be found in ltp if the free pages of global pool
reside outside the nodes allowed by the application.
 # cd ltp/testcases/kernel/mem/hugetlb/hugemmap/
 # numactl --cpunodebind=0 --membind=1 ./hugemmap10

Signed-off-by: Huaisheng Ye <redacted>

Acked-by: Muchun Song <muchun.song@linux.dev>

Should we backport this?

If so, a Fixes: target would be helpful.