From patchwork Thu Sep 21 18:07:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 13394644 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07C1DE7D0AE for ; Thu, 21 Sep 2023 21:05:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232409AbjIUVFw (ORCPT ); Thu, 21 Sep 2023 17:05:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232717AbjIUVEt (ORCPT ); Thu, 21 Sep 2023 17:04:49 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC870B0591; Thu, 21 Sep 2023 11:08:26 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32187C433C7; Thu, 21 Sep 2023 18:08:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695319706; bh=ppb7nxzr/j9CNCzkeE3W0KsRJrVXxnoD+Up1RAuza+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IrY86cpwVSG71w6rJlFX7+17Tx57L9IoKXlOE6xkd1VLa9lz/ZJy0fiqm6wSnq8JE SHIG2g0s/qSTKEv0xx9xZkZTrHSo2m67nkAy0Ed2k0mck/k4krtJOEwhBstH/gWdeX MkHZ78OVoCv1spCGQVvJ1J06QyFqrZ+qcEsq7x6silvPuhiCgbbH5iT0ANRdTSpJmg nv1CF35iGsco3jWfsTJGuMgTvjrXHn/v40Vxx7ejR/wlFUWNQWM46oPVyyY/KSWk8q frdEQAiEguP+Gys25Ce2iwfID7Sjz6txPKyocYxObsE+XUbW5aSuivdhtRO82/G4hG Jd1G9G8IPitmg== From: Damien Le Moal To: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org, "Martin K . Petersen" , John Garry , Rodrigo Vivi , Paul Ausbeck , Kai-Heng Feng , Joe Breuer , Geert Uytterhoeven , Chia-Lin Kao Subject: [PATCH v5 14/23] ata: libata-core: Synchronize ata_port_detach() with hotplug Date: Fri, 22 Sep 2023 03:07:49 +0900 Message-ID: <20230921180758.955317-15-dlemoal@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230921180758.955317-1-dlemoal@kernel.org> References: <20230921180758.955317-1-dlemoal@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The call to async_synchronize_cookie() to synchronize a port removal and hotplug probe is done in ata_host_detach() right before calling ata_port_detach(). Move this call at the beginning of ata_port_detach() to ensure that this operation is always synchronized with probe. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Tested-by: Chia-Lin Kao (AceLan) Tested-by: Geert Uytterhoeven --- drivers/ata/libata-core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 8e326a445765..de661780a31e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6065,6 +6065,9 @@ static void ata_port_detach(struct ata_port *ap) struct ata_link *link; struct ata_device *dev; + /* Ensure ata_port probe has completed */ + async_synchronize_cookie(ap->cookie + 1); + /* Wait for any ongoing EH */ ata_port_wait_eh(ap); @@ -6129,11 +6132,8 @@ void ata_host_detach(struct ata_host *host) { int i; - for (i = 0; i < host->n_ports; i++) { - /* Ensure ata_port probe has completed */ - async_synchronize_cookie(host->ports[i]->cookie + 1); + for (i = 0; i < host->n_ports; i++) ata_port_detach(host->ports[i]); - } /* the host is dead now, dissociate ACPI */ ata_acpi_dissociate(host);