From c23a0c99793fb7e2daac0f8fc7ff3bd7d77c9250 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Thu, 30 Jan 2020 22:14:41 -0800 Subject: mm/migrate: clean up some minor coding style Fix some comment typos and coding style clean up in preparation for the next patch. No functional changes. Link: http://lkml.kernel.org/r/20200107211208.24595-3-rcampbell@nvidia.com Signed-off-by: Ralph Campbell Acked-by: Chris Down Reviewed-by: Christoph Hellwig Cc: Jerome Glisse Cc: John Hubbard Cc: Jason Gunthorpe Cc: Bharata B Rao Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/migrate.c | 34 +++++++++++++--------------------- 1 file changed, 13 insertions(+), 21 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 0c98c9f1d778..0144e13c6b64 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -986,7 +986,7 @@ static int move_to_new_page(struct page *newpage, struct page *page, } /* - * Anonymous and movable page->mapping will be cleard by + * Anonymous and movable page->mapping will be cleared by * free_pages_prepare so don't reset it here for keeping * the type to work PageAnon, for example. */ @@ -1199,8 +1199,7 @@ out: /* * A page that has been migrated has all references * removed and will be freed. A page that has not been - * migrated will have kepts its references and be - * restored. + * migrated will have kept its references and be restored. */ list_del(&page->lru); @@ -2779,27 +2778,18 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate, if (pte_present(*ptep)) { unsigned long pfn = pte_pfn(*ptep); - if (!is_zero_pfn(pfn)) { - pte_unmap_unlock(ptep, ptl); - mem_cgroup_cancel_charge(page, memcg, false); - goto abort; - } + if (!is_zero_pfn(pfn)) + goto unlock_abort; flush = true; - } else if (!pte_none(*ptep)) { - pte_unmap_unlock(ptep, ptl); - mem_cgroup_cancel_charge(page, memcg, false); - goto abort; - } + } else if (!pte_none(*ptep)) + goto unlock_abort; /* - * Check for usefaultfd but do not deliver the fault. Instead, + * Check for userfaultfd but do not deliver the fault. Instead, * just back off. */ - if (userfaultfd_missing(vma)) { - pte_unmap_unlock(ptep, ptl); - mem_cgroup_cancel_charge(page, memcg, false); - goto abort; - } + if (userfaultfd_missing(vma)) + goto unlock_abort; inc_mm_counter(mm, MM_ANONPAGES); page_add_new_anon_rmap(page, vma, addr, false); @@ -2823,6 +2813,9 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate, *src = MIGRATE_PFN_MIGRATE; return; +unlock_abort: + pte_unmap_unlock(ptep, ptl); + mem_cgroup_cancel_charge(page, memcg, false); abort: *src &= ~MIGRATE_PFN_MIGRATE; } @@ -2855,9 +2848,8 @@ void migrate_vma_pages(struct migrate_vma *migrate) } if (!page) { - if (!(migrate->src[i] & MIGRATE_PFN_MIGRATE)) { + if (!(migrate->src[i] & MIGRATE_PFN_MIGRATE)) continue; - } if (!notified) { notified = true; -- cgit