The patch titled Subject: thp-huge-zero-page-basic-preparation-v6 has been added to the -mm tree. Its filename is thp-huge-zero-page-basic-preparation-v6.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> Subject: thp-huge-zero-page-basic-preparation-v6 Huge zero page (hzp) is a non-movable huge page (2M on x86-64) filled with zeros. For now let's allocate the page on hugepage_init(). We'll switch to lazy allocation later. We are not going to map the huge zero page until we can handle it properly on all code paths. is_huge_zero_{pfn,pmd}() functions will be used by following patches to check whether the pfn/pmd is huge zero page. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/huge_memory.c~thp-huge-zero-page-basic-preparation-v6 mm/huge_memory.c --- a/mm/huge_memory.c~thp-huge-zero-page-basic-preparation-v6 +++ a/mm/huge_memory.c @@ -161,7 +161,7 @@ static int start_khugepaged(void) return err; } -static int init_huge_zero_page(void) +static int __init init_huge_zero_page(void) { struct page *hpage; _ Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are linux-next.patch mm-use-is_enabledconfig_numa-instead-of-numa_build.patch mm-use-is_enabledconfig_compaction-instead-of-compaction_build.patch thp-huge-zero-page-basic-preparation.patch thp-huge-zero-page-basic-preparation-v6.patch thp-zap_huge_pmd-zap-huge-zero-pmd.patch thp-copy_huge_pmd-copy-huge-zero-page.patch thp-copy_huge_pmd-copy-huge-zero-page-v6.patch thp-do_huge_pmd_wp_page-handle-huge-zero-page.patch thp-do_huge_pmd_wp_page-handle-huge-zero-page-v6.patch thp-change_huge_pmd-keep-huge-zero-page-write-protected.patch thp-change-split_huge_page_pmd-interface.patch thp-change-split_huge_page_pmd-interface-v6.patch thp-implement-splitting-pmd-for-huge-zero-page.patch thp-implement-splitting-pmd-for-huge-zero-page-v6.patch thp-setup-huge-zero-page-on-non-write-page-fault.patch thp-lazy-huge-zero-page-allocation.patch thp-implement-refcounting-for-huge-zero-page.patch thp-vmstat-implement-hzp_alloc-and-hzp_alloc_failed-events.patch thp-vmstat-implement-hzp_alloc-and-hzp_alloc_failed-events-v6.patch thp-introduce-sysfs-knob-to-disable-huge-zero-page.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html