From 6e6e811d747bfe40228dc72309450803ef74d380 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Tue, 8 May 2018 21:33:55 -0400 Subject: [PATCH] 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 Signed-off-by: Jens Axboe --- block/bio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/bio.c b/block/bio.c index 858f56f3edcb..2112ad01b52c 100644 --- a/block/bio.c +++ b/block/bio.c @@ -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); } -- 2.30.2