+ mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch added to -mm tree

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The patch titled
     Subject: mm/migration: use helper function vma_lookup() in add_page_for_migration
has been added to the -mm tree.  Its filename is
     mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch

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------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/migration: use helper function vma_lookup() in add_page_for_migration

We could use helper function vma_lookup() to lookup the needed vma to
simplify the code.

Link: https://lkml.kernel.org/r/20220318111709.60311-6-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Zi Yan <ziy@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/migrate.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/migrate.c~mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration
+++ a/mm/migrate.c
@@ -1606,8 +1606,8 @@ static int add_page_for_migration(struct
 
 	mmap_read_lock(mm);
 	err = -EFAULT;
-	vma = find_vma(mm, addr);
-	if (!vma || addr < vma->vm_start || !vma_migratable(vma))
+	vma = vma_lookup(mm, addr);
+	if (!vma || !vma_migratable(vma))
 		goto out;
 
 	/* FOLL_DUMP to ignore special (like zero) pages */
_

Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are

mm-shmem-make-shmem_init-return-void.patch
mm-memcg-remove-unneeded-nr_scanned.patch
mm-mremap-use-helper-mlock_future_check.patch
mm-mlock-fix-two-bugs-in-user_shm_lock.patch
mm-compaction-use-helper-isolation_suitable.patch
mm-migration-remove-unneeded-local-variable-mapping_locked.patch
mm-migration-remove-unneeded-out-label.patch
mm-migration-remove-unneeded-local-variable-page_lru.patch
mm-migration-fix-the-confusing-pagetranshuge-check.patch
mm-migration-use-helper-function-vma_lookup-in-add_page_for_migration.patch
mm-migration-use-helper-macro-min-in-do_pages_stat.patch
mm-migration-avoid-unneeded-nodemask_t-initialization.patch
mm-migration-remove-some-duplicated-codes-in-migrate_pages.patch
mm-migration-fix-potential-page-refcounts-leak-in-migrate_pages.patch
mm-migration-fix-potential-invalid-node-access-for-reclaim-based-migration.patch
mm-migration-fix-possible-do_pages_stat_array-racing-with-memory-offline.patch




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