[merged mm-stable] mm-mm_init-defer-hugetlb-reservation-until-after-zone-initialization.patch removed from -mm tree
Andrew Morton <[email protected]> Tue, 28 Jul 2026 21:14:23 -0700
| Newsgroups | org.kernel.vger.mm-commits |
|---|---|
| Message-ID | <[email protected]> |
The quilt patch titled
Subject: mm/mm_init: defer hugetlb reservation until after zone initialization
has been removed from the -mm tree. Its filename was
mm-mm_init-defer-hugetlb-reservation-until-after-zone-initialization.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Muchun Song <[email protected]>
Subject: mm/mm_init: defer hugetlb reservation until after zone initialization
Date: Fri, 12 Jun 2026 11:58:53 +0800
hugetlb_cma_reserve() and hugetlb_bootmem_alloc() currently run before
free_area_init(), so HugeTLB reservation happens before zone state is
initialized.
Move the reservation step after free_area_init() so the relevant zone
information is available before HugeTLB reserves memory. This is needed
for later hugetlb changes that validate boot-time HugeTLB reservations
against zone boundaries.
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Muchun Song <[email protected]>
Reviewed-by: Mike Rapoport (Microsoft) <[email protected]>
Reviewed-by: Oscar Salvador (SUSE) <[email protected]>
Cc: "Aneesh Kumar K.V" <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Frank van der Linden <[email protected]>
Cc: Liam R. Howlett <[email protected]>
Cc: Lorenzo Stoakes <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: "Ritesh Harjani (IBM)" <[email protected]>
Cc: Usama Arif <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
mm/mm_init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/mm_init.c~mm-mm_init-defer-hugetlb-reservation-until-after-zone-initialization
+++ a/mm/mm_init.c
@@ -2683,11 +2683,11 @@ void __init mm_core_init_early(void)
{
int nid;
+ free_area_init();
+
hugetlb_cma_reserve();
hugetlb_bootmem_alloc();
- free_area_init();
-
sparse_init();
for_each_node_state(nid, N_MEMORY)
sparse_vmemmap_init_nid_late(nid);
_
Patches currently in -mm which might be from [email protected] are
selftests-mm-remove-obsolete-hugetlb-vmemmap-test.patch