Commit 6e6e811d authored May 08, 2018 by Kent Overstreet Committed by Jens Axboe May 14, 2018

block: Add missing flush_dcache_page() call



Since a bio can point to userspace pages (e.g. direct IO), this is
generally necessary.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 45db54d5

block/bio.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -994,6 +994,8 @@ void bio_copy_data_iter(struct bio dst, struct bvec_iter dst_iter,
		kunmap_atomic(dst_p);
		kunmap_atomic(src_p);

		flush_dcache_page(dst_bv.bv_page);

		bio_advance_iter(src, src_iter, bytes);
		bio_advance_iter(dst, dst_iter, bytes);
		}