Return-Path: Received: from com-out001.mailprotect.be ([83.217.72.83]:58711 "EHLO com-out001.mailprotect.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726371AbeLJDYM (ORCPT ); Sun, 9 Dec 2018 22:24:12 -0500 From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, Christoph Hellwig , Bart Van Assche , Todd Aiken , Keith Busch , Laurence Oberman , stable@vger.kernel.org Subject: [PATCH] block: Restore tape support Date: Sun, 9 Dec 2018 19:08:14 -0800 Message-Id: <20181210030814.13235-1-bvanassche@acm.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: According to what I found in https://bugzilla.kernel.org/show_bug.cgi?id=201935 patch "block: Clear kernel memory before copying to user" broke tape access. Hence revert that patch. Reported-by: Todd Aiken Fixes: f3587d76da05 ("block: Clear kernel memory before copying to user") # v4.20-rc2 Cc: Todd Aiken Cc: Keith Busch Cc: Laurence Oberman Cc: stable@vger.kernel.org Signed-off-by: Bart Van Assche --- block/bio.c | 1 - 1 file changed, 1 deletion(-) diff --git a/block/bio.c b/block/bio.c index 06760543ec81..90c32cd3e0c7 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1262,7 +1262,6 @@ struct bio *bio_copy_user_iov(struct request_queue *q, if (ret) goto cleanup; } else { - zero_fill_bio(bio); iov_iter_advance(iter, bio->bi_iter.bi_size); } -- 2.19.2