From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8CB5EC4363A for ; Mon, 5 Oct 2020 15:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A7242085B for ; Mon, 5 Oct 2020 15:34:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601912064; bh=saTBI3Qlc+vcJykPkLmPkk6UwN9R2xA52nmsh4NpV8Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=tgNr4/ltqV91odT8nzTKTJdvGBuplZw4aDvWtmX4xG0EL8tit8wfBFEXhOTBqTi4i iDni2c+UNyrz0CIM9Pcmf3UTQeN5PDFbYVmIh9oYQapL5tj6jg5awib1b3L2aNPRpP NZwmGIjcd6idveIF1znMVkcaLSUA9+HmPfAr9x9k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728279AbgJEPeX (ORCPT ); Mon, 5 Oct 2020 11:34:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:34658 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728192AbgJEPeI (ORCPT ); Mon, 5 Oct 2020 11:34:08 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2E546207BC; Mon, 5 Oct 2020 15:34:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601912047; bh=saTBI3Qlc+vcJykPkLmPkk6UwN9R2xA52nmsh4NpV8Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sEBS5dUIzo5X2dSP8AnalRwBTVjaZ1OyIV1bO6xV9J0ySZagyiPbASToILlVZxB/V p011ezMXsviLffui6//AK+EKuf86bkLxJ7iYunoCLKA6MBNb7xP4n8zxI/HIvymHUm wu1Ek3uh2FdsRzHS0qabHs032KLvkWexLRMQjitI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Borislav Petkov , Borislav Petkov , Johannes Thumshirn , Christoph Hellwig , Damien Le Moal , "Martin K. Petersen" Subject: [PATCH 5.8 81/85] scsi: sd: sd_zbc: Fix ZBC disk initialization Date: Mon, 5 Oct 2020 17:27:17 +0200 Message-Id: <20201005142118.629497606@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201005142114.732094228@linuxfoundation.org> References: <20201005142114.732094228@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Damien Le Moal commit 6c5dee18756b4721ac8518c69b22ee8ac0c9c442 upstream. Make sure to call sd_zbc_init_disk() when the sdkp->zoned field is known, that is, once sd_read_block_characteristics() is executed in sd_revalidate_disk(), so that host-aware disks also get initialized. To do so, move sd_zbc_init_disk() call in sd_zbc_revalidate_zones() and make sure to execute it for all zoned disks, including for host-aware disks used as regular disks as these disk zoned model may be changed back to BLK_ZONED_HA when partitions are deleted. Link: https://lore.kernel.org/r/20200915073347.832424-3-damien.lemoal@wdc.com Fixes: 5795eb443060 ("scsi: sd_zbc: emulate ZONE_APPEND commands") Cc: # v5.8+ Reported-by: Borislav Petkov Tested-by: Borislav Petkov Reviewed-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig Signed-off-by: Damien Le Moal Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/sd.c | 4 -- drivers/scsi/sd.h | 12 ------ drivers/scsi/sd_zbc.c | 94 +++++++++++++++++++++++++++----------------------- 3 files changed, 52 insertions(+), 58 deletions(-) --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3404,10 +3404,6 @@ static int sd_probe(struct device *dev) sdkp->first_scan = 1; sdkp->max_medium_access_timeouts = SD_MAX_MEDIUM_TIMEOUTS; - error = sd_zbc_init_disk(sdkp); - if (error) - goto out_free_index; - sd_revalidate_disk(gd); gd->flags = GENHD_FL_EXT_DEVT; --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -213,7 +213,6 @@ static inline int sd_is_zoned(struct scs #ifdef CONFIG_BLK_DEV_ZONED -int sd_zbc_init_disk(struct scsi_disk *sdkp); void sd_zbc_release_disk(struct scsi_disk *sdkp); extern int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buffer); extern void sd_zbc_print_zones(struct scsi_disk *sdkp); @@ -229,17 +228,6 @@ blk_status_t sd_zbc_prepare_zone_append( #else /* CONFIG_BLK_DEV_ZONED */ -static inline int sd_zbc_init(void) -{ - return 0; -} - -static inline int sd_zbc_init_disk(struct scsi_disk *sdkp) -{ - return 0; -} - -static inline void sd_zbc_exit(void) {} static inline void sd_zbc_release_disk(struct scsi_disk *sdkp) {} static inline int sd_zbc_read_zones(struct scsi_disk *sdkp, --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -633,6 +633,45 @@ static int sd_zbc_check_capacity(struct return 0; } +void sd_zbc_print_zones(struct scsi_disk *sdkp) +{ + if (!sd_is_zoned(sdkp) || !sdkp->capacity) + return; + + if (sdkp->capacity & (sdkp->zone_blocks - 1)) + sd_printk(KERN_NOTICE, sdkp, + "%u zones of %u logical blocks + 1 runt zone\n", + sdkp->nr_zones - 1, + sdkp->zone_blocks); + else + sd_printk(KERN_NOTICE, sdkp, + "%u zones of %u logical blocks\n", + sdkp->nr_zones, + sdkp->zone_blocks); +} + +static int sd_zbc_init_disk(struct scsi_disk *sdkp) +{ + sdkp->zones_wp_offset = NULL; + spin_lock_init(&sdkp->zones_wp_offset_lock); + sdkp->rev_wp_offset = NULL; + mutex_init(&sdkp->rev_mutex); + INIT_WORK(&sdkp->zone_wp_offset_work, sd_zbc_update_wp_offset_workfn); + sdkp->zone_wp_update_buf = kzalloc(SD_BUF_SIZE, GFP_KERNEL); + if (!sdkp->zone_wp_update_buf) + return -ENOMEM; + + return 0; +} + +void sd_zbc_release_disk(struct scsi_disk *sdkp) +{ + kvfree(sdkp->zones_wp_offset); + sdkp->zones_wp_offset = NULL; + kfree(sdkp->zone_wp_update_buf); + sdkp->zone_wp_update_buf = NULL; +} + static void sd_zbc_revalidate_zones_cb(struct gendisk *disk) { struct scsi_disk *sdkp = scsi_disk(disk); @@ -650,6 +689,19 @@ static int sd_zbc_revalidate_zones(struc int ret = 0; /* + * For all zoned disks, initialize zone append emulation data if not + * already done. This is necessary also for host-aware disks used as + * regular disks due to the presence of partitions as these partitions + * may be deleted and the disk zoned model changed back from + * BLK_ZONED_NONE to BLK_ZONED_HA. + */ + if (sd_is_zoned(sdkp) && !sdkp->zone_wp_update_buf) { + ret = sd_zbc_init_disk(sdkp); + if (ret) + return ret; + } + + /* * There is nothing to do for regular disks, including host-aware disks * that have partitions. */ @@ -754,45 +806,3 @@ err: return ret; } - -void sd_zbc_print_zones(struct scsi_disk *sdkp) -{ - if (!sd_is_zoned(sdkp) || !sdkp->capacity) - return; - - if (sdkp->capacity & (sdkp->zone_blocks - 1)) - sd_printk(KERN_NOTICE, sdkp, - "%u zones of %u logical blocks + 1 runt zone\n", - sdkp->nr_zones - 1, - sdkp->zone_blocks); - else - sd_printk(KERN_NOTICE, sdkp, - "%u zones of %u logical blocks\n", - sdkp->nr_zones, - sdkp->zone_blocks); -} - -int sd_zbc_init_disk(struct scsi_disk *sdkp) -{ - if (!sd_is_zoned(sdkp)) - return 0; - - sdkp->zones_wp_offset = NULL; - spin_lock_init(&sdkp->zones_wp_offset_lock); - sdkp->rev_wp_offset = NULL; - mutex_init(&sdkp->rev_mutex); - INIT_WORK(&sdkp->zone_wp_offset_work, sd_zbc_update_wp_offset_workfn); - sdkp->zone_wp_update_buf = kzalloc(SD_BUF_SIZE, GFP_KERNEL); - if (!sdkp->zone_wp_update_buf) - return -ENOMEM; - - return 0; -} - -void sd_zbc_release_disk(struct scsi_disk *sdkp) -{ - kvfree(sdkp->zones_wp_offset); - sdkp->zones_wp_offset = NULL; - kfree(sdkp->zone_wp_update_buf); - sdkp->zone_wp_update_buf = NULL; -}