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authorRalph Campbell <rcampbell@nvidia.com>2020-10-14 02:58:39 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-14 04:38:35 +0300
commit4257889124cce4526ebf29329bae8794e97b455a (patch)
tree1acabdd37f205ed1fade266500a1972c2fd0ac2b
parent67197a4f28d28d0b073ab0427b03cb2ee5382578 (diff)
downloadlinux-4257889124cce4526ebf29329bae8794e97b455a.tar.xz
mm/migrate: remove cpages-- in migrate_vma_finalize()
The variable struct migrate_vma->cpages is only used in migrate_vma_setup(). There is no need to decrement it in migrate_vma_finalize() since it is never checked. Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Link: http://lkml.kernel.org/r/20200827190735.12752-1-rcampbell@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/migrate.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index 4de11dfd730b..b0734900e953 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -3077,7 +3077,6 @@ void migrate_vma_finalize(struct migrate_vma *migrate)
remove_migration_ptes(page, newpage, false);
unlock_page(page);
- migrate->cpages--;
if (is_zone_device_page(page))
put_page(page);