From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752594AbeERHwc (ORCPT ); Fri, 18 May 2018 03:52:32 -0400 Received: from mail-qk0-f193.google.com ([209.85.220.193]:42654 "EHLO mail-qk0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752334AbeERHuP (ORCPT ); Fri, 18 May 2018 03:50:15 -0400 X-Google-Smtp-Source: AB8JxZoL3AiIviOKdHrNOfAbn8VtPNkg4tbBYqsmtqEZTe4dyCr9apZRkBYc/ACaORDf0DBczoTz0w== From: Kent Overstreet To: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-mm@kvack.org, Jens Axboe , Ingo Molnar Cc: Kent Overstreet Subject: [PATCH 07/10] block: Add missing flush_dcache_page() call Date: Fri, 18 May 2018 03:49:12 -0400 Message-Id: <20180518074918.13816-15-kent.overstreet@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180518074918.13816-1-kent.overstreet@gmail.com> References: <20180518074918.13816-1-kent.overstreet@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since a bio can point to userspace pages (e.g. direct IO), this is generally necessary. Signed-off-by: Kent Overstreet --- block/bio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/bio.c b/block/bio.c index c58544d4bc..ce8e259f9a 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); } -- 2.17.0