From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933582AbeEIBed (ORCPT ); Tue, 8 May 2018 21:34:33 -0400 Received: from mail-qt0-f194.google.com ([209.85.216.194]:34763 "EHLO mail-qt0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933532AbeEIBe1 (ORCPT ); Tue, 8 May 2018 21:34:27 -0400 X-Google-Smtp-Source: AB8JxZpjM6DG4JsDlui+eG+1+PEtsOKMzu5N3LrNc43l4QYW8T2J5SVI0VQ13Kakk9I/Ow0yKJllaA== 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: Tue, 8 May 2018 21:33:55 -0400 Message-Id: <20180509013358.16399-8-kent.overstreet@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180509013358.16399-1-kent.overstreet@gmail.com> References: <20180509013358.16399-1-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