Commit 42578891 authored Oct 13, 2020 by Ralph Campbell Committed by Linus Torvalds Oct 13, 2020

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>

parent 67197a4f

mm/migrate.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -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);

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