From patchwork Thu Mar 14 16:04:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Igor Konopko X-Patchwork-Id: 10853133 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ACDA717EF for ; Thu, 14 Mar 2019 16:07:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 987422A5BD for ; Thu, 14 Mar 2019 16:07:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8ABCF2A5C5; Thu, 14 Mar 2019 16:07:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 820602A5BD for ; Thu, 14 Mar 2019 16:07:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727043AbfCNQHw (ORCPT ); Thu, 14 Mar 2019 12:07:52 -0400 Received: from mga18.intel.com ([134.134.136.126]:23562 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727028AbfCNQHv (ORCPT ); Thu, 14 Mar 2019 12:07:51 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Mar 2019 09:07:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,478,1544515200"; d="scan'208";a="134072921" Received: from gklab-107-059.igk.intel.com ([10.102.107.59]) by orsmga003.jf.intel.com with ESMTP; 14 Mar 2019 09:07:49 -0700 From: Igor Konopko To: mb@lightnvm.io, javier@javigon.com, hans.holmberg@cnexlabs.com Cc: linux-block@vger.kernel.org, igor.j.konopko@intel.com Subject: [PATCH 05/18] lightnvm: pblk: propagate errors when reading meta Date: Thu, 14 Mar 2019 17:04:15 +0100 Message-Id: <20190314160428.3559-6-igor.j.konopko@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20190314160428.3559-1-igor.j.konopko@intel.com> References: <20190314160428.3559-1-igor.j.konopko@intel.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently when smeta/emeta/oob is read errors are not always propagated correctly. This patch changes that behaviour and propagates all the error codes except of high ecc read warning status. Signed-off-by: Igor Konopko Reviewed-by: Javier González Reviewed-by: Hans Holmberg --- drivers/lightnvm/pblk-core.c | 9 +++++++-- drivers/lightnvm/pblk-recovery.c | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 39280c1..38e26fe 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -761,8 +761,10 @@ int pblk_line_smeta_read(struct pblk *pblk, struct pblk_line *line) atomic_dec(&pblk->inflight_io); - if (rqd.error) + if (rqd.error && rqd.error != NVM_RSP_WARN_HIGHECC) { pblk_log_read_err(pblk, &rqd); + ret = -EIO; + } clear_rqd: pblk_free_rqd_meta(pblk, &rqd); @@ -916,8 +918,11 @@ int pblk_line_emeta_read(struct pblk *pblk, struct pblk_line *line, atomic_dec(&pblk->inflight_io); - if (rqd.error) + if (rqd.error && rqd.error != NVM_RSP_WARN_HIGHECC) { pblk_log_read_err(pblk, &rqd); + ret = -EIO; + goto free_rqd_dma; + } emeta_buf += rq_len; left_ppas -= rq_ppas; diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index bcd3633..688fdeb 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -450,7 +450,7 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line, atomic_dec(&pblk->inflight_io); /* If a read fails, do a best effort by padding the line and retrying */ - if (rqd->error) { + if (rqd->error && rqd->error != NVM_RSP_WARN_HIGHECC) { int pad_distance, ret; if (padded) {