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GET /api/patches/971350/?format=api
{ "id": 971350, "url": "http://patchwork.ozlabs.org/api/patches/971350/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20180918235702.26573-4-keith.busch@intel.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20180918235702.26573-4-keith.busch@intel.com>", "list_archive_url": null, "date": "2018-09-18T23:56:55", "name": "[PATCHv3,03/10] PCI/AER: Take reference on error devices", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "66b8e450bc9d16872758f156fd42f4bd5c03d1e3", "submitter": { "id": 19950, "url": "http://patchwork.ozlabs.org/api/people/19950/?format=api", "name": "Keith Busch", "email": "keith.busch@intel.com" }, "delegate": { "id": 6763, "url": "http://patchwork.ozlabs.org/api/users/6763/?format=api", "username": "bhelgaas", "first_name": "Bjorn", "last_name": "Helgaas", "email": "bhelgaas@google.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20180918235702.26573-4-keith.busch@intel.com/mbox/", "series": [ { "id": 66288, "url": "http://patchwork.ozlabs.org/api/series/66288/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=66288", "date": "2018-09-18T23:56:52", "name": "PCI error handling", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/66288/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/971350/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/971350/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linux-pci-owner@vger.kernel.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pci-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=intel.com" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 42FKcj4hjhz9sCS\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 19 Sep 2018 09:55:33 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1730657AbeISFab (ORCPT <rfc822;incoming@patchwork.ozlabs.org>);\n\tWed, 19 Sep 2018 01:30:31 -0400", "from mga02.intel.com ([134.134.136.20]:47633 \"EHLO mga02.intel.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1730633AbeISFab (ORCPT <rfc822;linux-pci@vger.kernel.org>);\n\tWed, 19 Sep 2018 01:30:31 -0400", "from orsmga008.jf.intel.com ([10.7.209.65])\n\tby orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t18 Sep 2018 16:55:30 -0700", "from unknown (HELO localhost.lm.intel.com) ([10.232.112.44])\n\tby orsmga008.jf.intel.com with ESMTP; 18 Sep 2018 16:55:29 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.53,391,1531810800\"; d=\"scan'208\";a=\"74357520\"", "From": "Keith Busch <keith.busch@intel.com>", "To": "Linux PCI <linux-pci@vger.kernel.org>,\n\tBjorn Helgaas <bhelgaas@google.com>", "Cc": "Benjamin Herrenschmidt <benh@kernel.crashing.org>,\n\tSinan Kaya <okaya@kernel.org>,\n\tThomas Tai <thomas.tai@oracle.com>, poza@codeaurora.org,\n\tLukas Wunner <lukas@wunner.de>, Christoph Hellwig <hch@lst.de>,\n\tMika Westerberg <mika.westerberg@linux.intel.com>,\n\tKeith Busch <keith.busch@intel.com>", "Subject": "[PATCHv3 03/10] PCI/AER: Take reference on error devices", "Date": "Tue, 18 Sep 2018 17:56:55 -0600", "Message-Id": "<20180918235702.26573-4-keith.busch@intel.com>", "X-Mailer": "git-send-email 2.13.6", "In-Reply-To": "<20180918235702.26573-1-keith.busch@intel.com>", "References": "<20180918235702.26573-1-keith.busch@intel.com>", "Sender": "linux-pci-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<linux-pci.vger.kernel.org>", "X-Mailing-List": "linux-pci@vger.kernel.org" }, "content": "Error handling may be running in parallel with a hot removal. This patch\nreference counts the devices AER handling tracks so the device can not\nbe freed while AER wants to reference it.\n\nSigned-off-by: Keith Busch <keith.busch@intel.com>\n---\n drivers/pci/pcie/aer.c | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c\nindex 1d2159409b01..35a0194e5b96 100644\n--- a/drivers/pci/pcie/aer.c\n+++ b/drivers/pci/pcie/aer.c\n@@ -866,7 +866,7 @@ void cper_print_aer(struct pci_dev *dev, int aer_severity,\n static int add_error_device(struct aer_err_info *e_info, struct pci_dev *dev)\n {\n \tif (e_info->error_dev_num < AER_MAX_MULTI_ERR_DEVICES) {\n-\t\te_info->dev[e_info->error_dev_num] = dev;\n+\t\te_info->dev[e_info->error_dev_num] = pci_dev_get(dev);\n \t\te_info->error_dev_num++;\n \t\treturn 0;\n \t}\n@@ -1013,6 +1013,7 @@ static void handle_error_source(struct pci_dev *dev, struct aer_err_info *info)\n \t\tpcie_do_nonfatal_recovery(dev);\n \telse if (info->severity == AER_FATAL)\n \t\tpcie_do_fatal_recovery(dev, PCIE_PORT_SERVICE_AER);\n+\tpci_dev_put(dev);\n }\n \n #ifdef CONFIG_ACPI_APEI_PCIEAER\n", "prefixes": [ "PATCHv3", "03/10" ] }