The quilt patch titled Subject: mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON has been removed from the -mm tree. Its filename was mm-hugetlb_vmemmap-fix-config_hugetlb_page_free_vmemmap_default_on.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Muchun Song <songmuchun@xxxxxxxxxxxxx> Subject: mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON Date: Fri, 27 May 2022 16:19:48 +0800 The following: commit 47010c040dec ("mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP*") forgot to update CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON used in vmemmap_optimize_mode to CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON. The result is we cannot enable hugetlb_optimize_vmemmap at boot time when we configure CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON. Fix it. Link: https://lkml.kernel.org/r/20220527081948.68832-1-songmuchun@xxxxxxxxxxxxx Fixes: 47010c040dec ("mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP*") Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Reported-by: Vlastimil Babka <vbabka@xxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/hugetlb_vmemmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/hugetlb_vmemmap.c~mm-hugetlb_vmemmap-fix-config_hugetlb_page_free_vmemmap_default_on +++ a/mm/hugetlb_vmemmap.c @@ -33,7 +33,7 @@ DEFINE_STATIC_KEY_MAYBE(CONFIG_HUGETLB_P EXPORT_SYMBOL(hugetlb_optimize_vmemmap_key); static enum vmemmap_optimize_mode vmemmap_optimize_mode = - IS_ENABLED(CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON); + IS_ENABLED(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON); static void vmemmap_optimize_mode_switch(enum vmemmap_optimize_mode to) { _ Patches currently in -mm which might be from songmuchun@xxxxxxxxxxxxx are mm-memory_hotplug-enumerate-all-supported-section-flags.patch mm-memory_hotplug-introduce-section_cannot_optimize_vmemmap.patch