[merged mm-stable] mm-hwpoison-avoid-unneeded-page_mapped_in_vma-overhead-in-collect_procs_anon.patch removed from -mm tree

[merged mm-stable] mm-hwpoison-avoid-unneeded-page_mapped_in_vma-overhead-in-collect_procs_anon.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm, hwpoison: avoid unneeded page_mapped_in_vma() overhead in collect_procs_anon()
has been removed from the -mm tree.  Its filename was
     mm-hwpoison-avoid-unneeded-page_mapped_in_vma-overhead-in-collect_procs_anon.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: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm, hwpoison: avoid unneeded page_mapped_in_vma() overhead in collect_procs_anon()
Date: Tue, 30 Aug 2022 20:36:02 +0800

If vma->vm_mm != t->mm, there's no need to call page_mapped_in_vma() as
add_to_kill() won't be called in this case. Move up the mm check to avoid
possible unneeded calling to page_mapped_in_vma().

Link: https://lkml.kernel.org/r/20220830123604.25763-5-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory-failure.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/mm/memory-failure.c~mm-hwpoison-avoid-unneeded-page_mapped_in_vma-overhead-in-collect_procs_anon
+++ a/mm/memory-failure.c
@@ -521,11 +521,11 @@ static void collect_procs_anon(struct pa
 		anon_vma_interval_tree_foreach(vmac, &av->rb_root,
 					       pgoff, pgoff) {
 			vma = vmac->vma;
+			if (vma->vm_mm != t->mm)
+				continue;
 			if (!page_mapped_in_vma(page, vma))
 				continue;
-			if (vma->vm_mm == t->mm)
-				add_to_kill(t, page, FSDAX_INVALID_PGOFF, vma,
-					    to_kill);
+			add_to_kill(t, page, FSDAX_INVALID_PGOFF, vma, to_kill);
 		}
 	}
 	read_unlock(&tasklist_lock);
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

writeback-remove-unused-macro-dirty_full_scope.patch
mm-page_alloc-ensure-kswapd-doesnt-accidentally-go-to-sleep.patch
mm-page_alloc-make-zone_pcp_update-static.patch
mm-remove-obsolete-macro-nr_pcp_order_mask-and-nr_pcp_order_width.patch
mm-page_alloc-remove-obsolete-comment-in-zone_statistics.patch
mm-page_alloc-add-__init-annotations-to-init_mem_debugging_and_hardening.patch
mm-page_alloc-fix-freeing-static-percpu-memory.patch
mm-remove-obsolete-pgdat_is_empty.patch
mm-page_alloc-add-missing-is_migrate_isolate-check-in-set_page_guard.patch
mm-page_alloc-use-local-variable-zone_idx-directly.patch
mm-memory_hotplug-remove-obsolete-generic_free_nodedata.patch
mm-page_alloc-make-boot_nodestats-static.patch
mm-page_alloc-use-helper-macro-sz_1km.patch
mm-page_alloc-init-local-variable-buddy_pfn.patch
mm-page_alloc-use-costly_order-in-warn_on_once_gfp.patch
mm-page_alloc-remove-obsolete-gfpflags_normal_context.patch
mm-page_alloc-remove-obsolete-gfpflags_normal_context-fix.patch
mm-page_alloc-fix-obsolete-comment-in-deferred_pfn_valid.patch