From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:60912 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751931AbdHCWoV (ORCPT ); Thu, 3 Aug 2017 18:44:21 -0400 Subject: Patch "libnvdimm, btt: fix btt_rw_page not returning errors" has been added to the 4.4-stable tree To: vishal.l.verma@intel.com, dan.j.williams@intel.com, gregkh@linuxfoundation.org, jmoyer@redhat.com, toshi.kani@hpe.com Cc: , From: Date: Thu, 03 Aug 2017 15:44:19 -0700 Message-ID: <1501800259238134@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled libnvdimm, btt: fix btt_rw_page not returning errors to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: libnvdimm-btt-fix-btt_rw_page-not-returning-errors.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c13c43d54f2c6a3be1c675766778ac1ad8dfbfcc Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Thu, 29 Jun 2017 16:59:11 -0600 Subject: libnvdimm, btt: fix btt_rw_page not returning errors From: Vishal Verma commit c13c43d54f2c6a3be1c675766778ac1ad8dfbfcc upstream. btt_rw_page was not propagating errors frm btt_do_bvec, resulting in any IO errors via the rw_page path going unnoticed. the pmem driver recently fixed this in e10624f pmem: fail io-requests to known bad blocks but same problem in BTT went neglected. Fixes: 5212e11fde4d ("nd_btt: atomic sector updates") Cc: Toshi Kani Cc: Dan Williams Cc: Jeff Moyer Signed-off-by: Vishal Verma Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman --- drivers/nvdimm/btt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1205,10 +1205,13 @@ static int btt_rw_page(struct block_devi struct page *page, int rw) { struct btt *btt = bdev->bd_disk->private_data; + int rc; - btt_do_bvec(btt, NULL, page, PAGE_CACHE_SIZE, 0, rw, sector); - page_endio(page, rw & WRITE, 0); - return 0; + rc = btt_do_bvec(btt, NULL, page, PAGE_CACHE_SIZE, 0, rw, sector); + if (rc == 0) + page_endio(page, rw & WRITE, 0); + + return rc; } Patches currently in stable-queue which might be from vishal.l.verma@intel.com are queue-4.4/libnvdimm-btt-fix-btt_rw_page-not-returning-errors.patch