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 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/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ 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