[{"id":3674303,"web_url":"http://patchwork.ozlabs.org/comment/3674303/","msgid":"","list_archive_url":null,"date":"2026-04-07T16:34:26","subject":"Re: [PATCH 5/5] scsi: enable async shutdown support","submitter":{"id":85141,"url":"http://patchwork.ozlabs.org/api/people/85141/","name":"John Garry","email":"john.g.garry@oracle.com"},"content":"> }\n> @@ -1396,6 +1397,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)\n> \ttransport_configure_device(&starget->dev);\n> \n> \tdevice_enable_async_suspend(&sdev->sdev_gendev);\n> +\tdevice_enable_async_shutdown(&sdev->sdev_gendev);\n\nWe call device_enable_async_shutdown(&sdev->sdev_gendev) here and \nscsi_sysfs_device_initialize() - any reason for that?\n\n> \tscsi_autopm_get_target(starget);\n> \tpm_runtime_set_active(&sdev->sdev_gendev);\n> \tif (!sdev->rpm_autosuspend)\n> @@ -1415,6 +1417,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)\n> \t}\n> \n> \tdevice_enable_async_suspend(&sdev->sdev_dev);\n> +\tdevice_enable_async_shutdown(&sdev->sdev_dev);\n> \terror = device_add(&sdev->sdev_dev);\n> \tif (error) {\n> \t\tsdev_printk(KERN_INFO, sdev,\n> @@ -1670,6 +1673,7 @@ void scsi_sysfs_device_initialize(struct scsi_device *sdev)\n> \tsdev->sdev_gendev.bus = &scsi_bus_type;\n> \tsdev->sdev_gendev.type = &scsi_dev_type;\n> \tscsi_enable_async_suspend(&sdev->sdev_gendev);\n> +\tdevice_enable_async_shutdown(&sdev->sdev_gendev);\n> \tdev_set_name(&sdev->sdev_gendev, \"%d:%d:%d:%llu\",\n> \t\t sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);\n> \tsdev->sdev_gendev.groups = hostt->sdev_groups;","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256\n header.s=corp-2025-04-25 header.b=OxoBBngo;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com\n header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com\n header.b=Gn0HuALS;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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device_enable_async_shutdown(&sdev->sdev_gendev) here and\n> scsi_sysfs_device_initialize() - any reason for that?\n>\n\nIt was added to match locations where async suspend is set. But as you\npoint out, it does appear redundant to use both locations.\n\nDavid Jeffery","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=Veu55jsl;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=MSC01FxP;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-pci+bounces-52159-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"Veu55jsl\";\n\tdkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"MSC01FxP\"","smtp.subspace.kernel.org;\n arc=pass smtp.client-ip=170.10.129.124","smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=redhat.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=redhat.com"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frQKW0cMKz1yD3\n\tfor ; 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Wed, 08 Apr 2026\n 07:16:45 -0700 (PDT)"],"Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","References":"<20260407153532.6395-1-djeffery@redhat.com>\n <20260407153532.6395-6-djeffery@redhat.com>\n ","In-Reply-To":"","From":"David Jeffery ","Date":"Wed, 8 Apr 2026 10:16:33 -0400","X-Gm-Features":"AQROBzCA9JzhK-STTzQehLHNPnOIWukHHyeEOKbNwvtun8-eFJcP344aRf0ba_A","Message-ID":"\n ","Subject":"Re: [PATCH 5/5] scsi: enable async shutdown support","To":"John Garry ","Cc":"linux-kernel@vger.kernel.org, driver-core@lists.linux.dev,\n linux-pci@vger.kernel.org, linux-scsi@vger.kernel.org,\n Greg Kroah-Hartman ,\n \"Rafael J. Wysocki\" , Danilo Krummrich ,\n Tarun Sahu , Pasha Tatashin ,\n\t=?utf-8?b?TWljaGHFgiBDxYJhcGnFhHNraQ==?= ,\n Jordan Richards , Ewan Milne ,\n John Meneghini , \"Lombardi,\n Maurizio\" , Stuart Hayes ,\n Laurence Oberman ,\n Bart Van Assche , Bjorn Helgaas ,\n \"Martin K . Petersen\" ","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}},{"id":3674839,"web_url":"http://patchwork.ozlabs.org/comment/3674839/","msgid":"<069f3f1b-8150-41e8-a760-f85a0b1b0ce4@oracle.com>","list_archive_url":null,"date":"2026-04-08T15:53:45","subject":"Re: [PATCH 5/5] scsi: enable async shutdown support","submitter":{"id":85141,"url":"http://patchwork.ozlabs.org/api/people/85141/","name":"John Garry","email":"john.g.garry@oracle.com"},"content":"On 08/04/2026 15:16, David Jeffery wrote:\n> On Tue, Apr 7, 2026 at 12:35 PM John Garry wrote:\n>>\n>>> }\n>>> @@ -1396,6 +1397,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)\n>>> transport_configure_device(&starget->dev);\n>>>\n>>> device_enable_async_suspend(&sdev->sdev_gendev);\n>>> + device_enable_async_shutdown(&sdev->sdev_gendev);\n>> We call device_enable_async_shutdown(&sdev->sdev_gendev) here and\n>> scsi_sysfs_device_initialize() - any reason for that?\n>>\n> It was added to match locations where async suspend is set. \n\nWell it is not exactly like that. We have the following:\n\nscsi_sysfs_add_sdev() -> device_enable_async_suspend(&sdev->sdev_gendev)\n\nand\n\nscsi_sysfs_device_initialize() -> \nscsi_enable_async_suspend(&sdev->sdev_gendev) -> \ndevice_enable_async_suspend(&sdev->sdev_gendev) when not async\n\nMaybe similar needs to be done for this shutdown feature. AFICS, Bart, \nadded scsi_enable_async_suspend(), so maybe he can comment.\n\nThanks,\nJohn","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256\n header.s=corp-2025-04-25 header.b=BIkM5AJF;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com\n header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com\n header.b=SGv3nzRz;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52161-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com\n header.b=\"BIkM5AJF\";\n\tdkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com\n header.i=@oracle.onmicrosoft.com header.b=\"SGv3nzRz\"","smtp.subspace.kernel.org;\n arc=fail smtp.client-ip=205.220.165.32","smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=oracle.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=oracle.com"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org [172.105.105.114])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frSWB73xyz1xy1\n\tfor ; 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>>> device_enable_async_suspend(&sdev->sdev_gendev);\n> >>> + device_enable_async_shutdown(&sdev->sdev_gendev);\n> >> We call device_enable_async_shutdown(&sdev->sdev_gendev) here and\n> >> scsi_sysfs_device_initialize() - any reason for that?\n> >>\n> > It was added to match locations where async suspend is set.\n>\n> Well it is not exactly like that. We have the following:\n>\n> scsi_sysfs_add_sdev() -> device_enable_async_suspend(&sdev->sdev_gendev)\n>\n> and\n>\n> scsi_sysfs_device_initialize() ->\n> scsi_enable_async_suspend(&sdev->sdev_gendev) ->\n> device_enable_async_suspend(&sdev->sdev_gendev) when not async\n>\n> Maybe similar needs to be done for this shutdown feature. AFICS, Bart,\n> added scsi_enable_async_suspend(), so maybe he can comment.\n>\n\nMy inclination is to drop adding device_enable_async_shutdown into\nscsi_sysfs_device_initialize. The intent is for normal scsi devices,\nand I see little value in setting the flag so early to flag partially\ninitialized or pseudo devices.\n\nDavid Jeffery","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=Vc2pfcF8;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=OOhKfElz;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.232.135.74; helo=sto.lore.kernel.org;\n envelope-from=linux-pci+bounces-52183-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"Vc2pfcF8\";\n\tdkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"OOhKfElz\"","smtp.subspace.kernel.org;\n arc=pass smtp.client-ip=170.10.129.124","smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=redhat.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=redhat.com"],"Received":["from sto.lore.kernel.org (sto.lore.kernel.org [172.232.135.74])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frhqk2yrCz1xtJ\n\tfor ; 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Wed, 08 Apr 2026\n 12:35:46 -0700 (PDT)"],"Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","References":"<20260407153532.6395-1-djeffery@redhat.com>\n <20260407153532.6395-6-djeffery@redhat.com>\n \n \n <069f3f1b-8150-41e8-a760-f85a0b1b0ce4@oracle.com>","In-Reply-To":"<069f3f1b-8150-41e8-a760-f85a0b1b0ce4@oracle.com>","From":"David Jeffery ","Date":"Wed, 8 Apr 2026 15:35:34 -0400","X-Gm-Features":"AQROBzD1jjRkWpzNwb8uyDg7e1dbHkjzLDl0riAoAiR4l1_QYsvUdLm-veMvcSg","Message-ID":"\n ","Subject":"Re: [PATCH 5/5] scsi: enable async shutdown support","To":"John Garry ","Cc":"bvanassche@acm.org, linux-kernel@vger.kernel.org,\n driver-core@lists.linux.dev, linux-pci@vger.kernel.org,\n linux-scsi@vger.kernel.org, Greg Kroah-Hartman ,\n \"Rafael J. Wysocki\" , Danilo Krummrich ,\n Tarun Sahu , Pasha Tatashin ,\n\t=?utf-8?b?TWljaGHFgiBDxYJhcGnFhHNraQ==?= ,\n Jordan Richards , Ewan Milne ,\n John Meneghini , \"Lombardi,\n Maurizio\" , Stuart Hayes ,\n Laurence Oberman , Bjorn Helgaas ,\n \"Martin K . Petersen\" ","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}},{"id":3675282,"web_url":"http://patchwork.ozlabs.org/comment/3675282/","msgid":"","list_archive_url":null,"date":"2026-04-09T12:17:39","subject":"Re: [PATCH 5/5] scsi: enable async shutdown support","submitter":{"id":85141,"url":"http://patchwork.ozlabs.org/api/people/85141/","name":"John Garry","email":"john.g.garry@oracle.com"},"content":"On 08/04/2026 20:35, David Jeffery wrote:\n>> Well it is not exactly like that. We have the following:\n>>\n>> scsi_sysfs_add_sdev() -> device_enable_async_suspend(&sdev->sdev_gendev)\n>>\n>> and\n>>\n>> scsi_sysfs_device_initialize() ->\n>> scsi_enable_async_suspend(&sdev->sdev_gendev) ->\n>> device_enable_async_suspend(&sdev->sdev_gendev) when not async\n>>\n>> Maybe similar needs to be done for this shutdown feature. AFICS, Bart,\n>> added scsi_enable_async_suspend(), so maybe he can comment.\n>>\n> My inclination is to drop adding device_enable_async_shutdown into\n> scsi_sysfs_device_initialize. The intent is for normal scsi devices,\n> and I see little value in setting the flag so early to flag partially\n> initialized or pseudo devices.\n\nThat seems reasonable, but, again I am not so familiar with this async \nsuspend and shutdown.\n\nThanks!","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256\n header.s=corp-2025-04-25 header.b=UtgF81Si;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com\n header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com\n header.b=f5LQK6uw;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52212-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com\n header.b=\"UtgF81Si\";\n\tdkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com\n header.i=@oracle.onmicrosoft.com header.b=\"f5LQK6uw\"","smtp.subspace.kernel.org;\n arc=fail smtp.client-ip=205.220.165.32","smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=oracle.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=oracle.com"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org [172.105.105.114])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frzW83dmXz1yCv\n\tfor ; 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We have the following:\n> >>\n> >> scsi_sysfs_add_sdev() -> device_enable_async_suspend(&sdev->sdev_gendev)\n> >>\n> >> and\n> >>\n> >> scsi_sysfs_device_initialize() ->\n> >> scsi_enable_async_suspend(&sdev->sdev_gendev) ->\n> >> device_enable_async_suspend(&sdev->sdev_gendev) when not async\n> >>\n> >> Maybe similar needs to be done for this shutdown feature. AFICS, Bart,\n> >> added scsi_enable_async_suspend(), so maybe he can comment.\n> >>\n> > My inclination is to drop adding device_enable_async_shutdown into\n> > scsi_sysfs_device_initialize. The intent is for normal scsi devices,\n> > and I see little value in setting the flag so early to flag partially\n> > initialized or pseudo devices.\n>\n> That seems reasonable, but, again I am not so familiar with this async\n> suspend and shutdown.\n>\n\nThere also appears to be similar duplication with flagging scsi hosts\nand targets for async shutdown. I'll see about consolidating those as\nwell.","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=CJpfVwO8;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=YdzkUFB7;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52233-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"CJpfVwO8\";\n\tdkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com\n header.b=\"YdzkUFB7\"","smtp.subspace.kernel.org;\n arc=pass smtp.client-ip=170.10.133.124","smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=redhat.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=redhat.com"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fsBZ14NNlz1yHG\n\tfor ; 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Wysocki\" , Danilo Krummrich ,\n Tarun Sahu , Pasha Tatashin ,\n\t=?utf-8?b?TWljaGHFgiBDxYJhcGnFhHNraQ==?= ,\n Jordan Richards , Ewan Milne ,\n John Meneghini , \"Lombardi,\n Maurizio\" , Stuart Hayes ,\n Laurence Oberman , Bjorn Helgaas ,\n \"Martin K . Petersen\" ","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}}]