From nobody Fri Apr 19 16:45:32 2024 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 83E49C761AF for ; Sat, 18 Mar 2023 17:36:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229826AbjCRRgl (ORCPT ); Sat, 18 Mar 2023 13:36:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229764AbjCRRgj (ORCPT ); Sat, 18 Mar 2023 13:36:39 -0400 Received: from todd.t-8ch.de (todd.t-8ch.de [IPv6:2a01:4f8:c010:41de::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A16032510; Sat, 18 Mar 2023 10:36:33 -0700 (PDT) From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1679160991; bh=xiqHWSC49shuhqvLfMSzV+Z/2sBGKK0CTZeOzhHDAs0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=escEGlFaiOS+QYZdcY1bMio2R2l7td8fG8+QJfgtwwn1U7FukPM2/3VhQNkKTa6uU V/1ahrrS0UtyFBwhxgxcUZSF2SkQ10RmQFMDBMqgaWhwNl65oftrRcGSoUbltGYEZQ s/Ilx78c++OY+CLnLa8Gfw4xa6iv02gxyi88sxgU= Date: Sat, 18 Mar 2023 17:36:23 +0000 Subject: [PATCH v3 1/3] blk-integrity: use sysfs_emit MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230309-kobj_release-gendisk_integrity-v3-1-ceccb4493c46@weissschuh.net> References: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> In-Reply-To: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Martin K. Petersen" , Christoph Hellwig , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1679160989; l=2443; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=xiqHWSC49shuhqvLfMSzV+Z/2sBGKK0CTZeOzhHDAs0=; b=GS9KWf/XOcf6+joq/W3STKHN5uWt9LKXXluB5ziVjcdOrkmhg5sCpKPNHqkVxjuEFtvoTx7VU cPY8rnKhctmCpTiyrB+I7aepkOjaxqJziEZXIigqCaqSyou9eeYdeg8 X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The correct way to emit data into sysfs is via sysfs_emit(), use it. Also perform some trivial syntactic cleanups. Signed-off-by: Thomas Wei=C3=9Fschuh Reviewed-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- block/blk-integrity.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/block/blk-integrity.c b/block/blk-integrity.c index 8f01d786f5cb..aca8c783d749 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -248,20 +248,19 @@ static ssize_t integrity_attr_store(struct kobject *k= obj, static ssize_t integrity_format_show(struct blk_integrity *bi, char *page) { if (bi->profile && bi->profile->name) - return sprintf(page, "%s\n", bi->profile->name); - else - return sprintf(page, "none\n"); + return sysfs_emit(page, "%s\n", bi->profile->name); + return sysfs_emit(page, "none\n"); } =20 static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *pag= e) { - return sprintf(page, "%u\n", bi->tag_size); + return sysfs_emit(page, "%u\n", bi->tag_size); } =20 static ssize_t integrity_interval_show(struct blk_integrity *bi, char *pag= e) { - return sprintf(page, "%u\n", - bi->interval_exp ? 1 << bi->interval_exp : 0); + return sysfs_emit(page, "%u\n", + bi->interval_exp ? 1 << bi->interval_exp : 0); } =20 static ssize_t integrity_verify_store(struct blk_integrity *bi, @@ -280,7 +279,7 @@ static ssize_t integrity_verify_store(struct blk_integr= ity *bi, =20 static ssize_t integrity_verify_show(struct blk_integrity *bi, char *page) { - return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_VERIFY) !=3D 0); + return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_VERIFY)); } =20 static ssize_t integrity_generate_store(struct blk_integrity *bi, @@ -299,13 +298,13 @@ static ssize_t integrity_generate_store(struct blk_in= tegrity *bi, =20 static ssize_t integrity_generate_show(struct blk_integrity *bi, char *pag= e) { - return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_GENERATE) !=3D 0); + return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_GENERATE)); } =20 static ssize_t integrity_device_show(struct blk_integrity *bi, char *page) { - return sprintf(page, "%u\n", - (bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE) !=3D 0); + return sysfs_emit(page, "%u\n", + !!(bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE)); } =20 static struct integrity_sysfs_entry integrity_format_entry =3D { --=20 2.40.0 From nobody Fri Apr 19 16:45:32 2024 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 4F486C7618E for ; Sat, 18 Mar 2023 17:36:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230018AbjCRRgr (ORCPT ); Sat, 18 Mar 2023 13:36:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229942AbjCRRgk (ORCPT ); Sat, 18 Mar 2023 13:36:40 -0400 Received: from todd.t-8ch.de (todd.t-8ch.de [IPv6:2a01:4f8:c010:41de::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5ACEE31E3F; Sat, 18 Mar 2023 10:36:33 -0700 (PDT) From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1679160991; bh=eW3uAkf1HzSLaynA+C8/y/reICaC+2w3Vb26NVi5yHg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=q6GhVdJwioitUAHGaUTCl5yCEXwq4j27ESxSx6AgWwMVOSW06Kw0JUke3S8SvASSy 4OwwI1jUv6PGVbgaQE1mME5birnJVNxLqWC8yCPo+JMJGq9+P2+488v+pmW6VADcHQ la4339kGR5cyo2uTu+C0uA/2aJgAeiKDpG3Tpkyc= Date: Sat, 18 Mar 2023 17:36:24 +0000 Subject: [PATCH v3 2/3] blk-integrity: convert to struct device_attribute MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230309-kobj_release-gendisk_integrity-v3-2-ceccb4493c46@weissschuh.net> References: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> In-Reply-To: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Martin K. Petersen" , Christoph Hellwig , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1679160989; l=7142; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=eW3uAkf1HzSLaynA+C8/y/reICaC+2w3Vb26NVi5yHg=; b=RfhZlSU33+8loa1q+cGwBZ3sdZnYW+lkQIP4CtGJ7SBD0DVWlPnBjP/0bAYnah0VQCxl8SFM3 gEPJ2pBMLt5Cl3d4JyJKDHPYHFQ5aYhYMMDJdUMwBRzq/j/0TwLIwiZ X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org An upcoming patch will register the integrity attributes directly with the struct device kobject. For this the attributes have to be implemented in terms of struct device_attribute. Signed-off-by: Thomas Wei=C3=9Fschuh Reviewed-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- block/blk-integrity.c | 127 ++++++++++++++++++++++++----------------------= ---- 1 file changed, 62 insertions(+), 65 deletions(-) diff --git a/block/blk-integrity.c b/block/blk-integrity.c index aca8c783d749..1cbfdea88c72 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -212,21 +212,15 @@ bool blk_integrity_merge_bio(struct request_queue *q,= struct request *req, return true; } =20 -struct integrity_sysfs_entry { - struct attribute attr; - ssize_t (*show)(struct blk_integrity *, char *); - ssize_t (*store)(struct blk_integrity *, const char *, size_t); -}; - static ssize_t integrity_attr_show(struct kobject *kobj, struct attribute = *attr, char *page) { struct gendisk *disk =3D container_of(kobj, struct gendisk, integrity_kob= j); - struct blk_integrity *bi =3D &disk->queue->integrity; - struct integrity_sysfs_entry *entry =3D - container_of(attr, struct integrity_sysfs_entry, attr); + struct device *dev =3D disk_to_dev(disk); + struct device_attribute *dev_attr =3D + container_of(attr, struct device_attribute, attr); =20 - return entry->show(bi, page); + return dev_attr->show(dev, dev_attr, page); } =20 static ssize_t integrity_attr_store(struct kobject *kobj, @@ -234,38 +228,53 @@ static ssize_t integrity_attr_store(struct kobject *k= obj, size_t count) { struct gendisk *disk =3D container_of(kobj, struct gendisk, integrity_kob= j); - struct blk_integrity *bi =3D &disk->queue->integrity; - struct integrity_sysfs_entry *entry =3D - container_of(attr, struct integrity_sysfs_entry, attr); - ssize_t ret =3D 0; + struct device *dev =3D disk_to_dev(disk); + struct device_attribute *dev_attr =3D + container_of(attr, struct device_attribute, attr); =20 - if (entry->store) - ret =3D entry->store(bi, page, count); + if (!dev_attr->store) + return 0; + return dev_attr->store(dev, dev_attr, page, count); +} =20 - return ret; +static inline struct blk_integrity *dev_to_bi(struct device *dev) +{ + return &dev_to_disk(dev)->queue->integrity; } =20 -static ssize_t integrity_format_show(struct blk_integrity *bi, char *page) +static ssize_t format_show(struct device *dev, struct device_attribute *at= tr, + char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + if (bi->profile && bi->profile->name) return sysfs_emit(page, "%s\n", bi->profile->name); return sysfs_emit(page, "none\n"); } =20 -static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *pag= e) +static ssize_t tag_size_show(struct device *dev, struct device_attribute *= attr, + char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + return sysfs_emit(page, "%u\n", bi->tag_size); } =20 -static ssize_t integrity_interval_show(struct blk_integrity *bi, char *pag= e) +static ssize_t protection_interval_bytes_show(struct device *dev, + struct device_attribute *attr, + char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + return sysfs_emit(page, "%u\n", bi->interval_exp ? 1 << bi->interval_exp : 0); } =20 -static ssize_t integrity_verify_store(struct blk_integrity *bi, - const char *page, size_t count) +static ssize_t read_verify_store(struct device *dev, + struct device_attribute *attr, + const char *page, size_t count) { + struct blk_integrity *bi =3D dev_to_bi(dev); char *p =3D (char *) page; unsigned long val =3D simple_strtoul(p, &p, 10); =20 @@ -277,14 +286,20 @@ static ssize_t integrity_verify_store(struct blk_inte= grity *bi, return count; } =20 -static ssize_t integrity_verify_show(struct blk_integrity *bi, char *page) +static ssize_t read_verify_show(struct device *dev, + struct device_attribute *attr, char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_VERIFY)); } =20 -static ssize_t integrity_generate_store(struct blk_integrity *bi, - const char *page, size_t count) +static ssize_t write_generate_store(struct device *dev, + struct device_attribute *attr, + const char *page, size_t count) { + struct blk_integrity *bi =3D dev_to_bi(dev); + char *p =3D (char *) page; unsigned long val =3D simple_strtoul(p, &p, 10); =20 @@ -296,57 +311,39 @@ static ssize_t integrity_generate_store(struct blk_in= tegrity *bi, return count; } =20 -static ssize_t integrity_generate_show(struct blk_integrity *bi, char *pag= e) +static ssize_t write_generate_show(struct device *dev, + struct device_attribute *attr, char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_GENERATE)); } =20 -static ssize_t integrity_device_show(struct blk_integrity *bi, char *page) +static ssize_t device_is_integrity_capable_show(struct device *dev, + struct device_attribute *attr, + char *page) { + struct blk_integrity *bi =3D dev_to_bi(dev); + return sysfs_emit(page, "%u\n", !!(bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE)); } =20 -static struct integrity_sysfs_entry integrity_format_entry =3D { - .attr =3D { .name =3D "format", .mode =3D 0444 }, - .show =3D integrity_format_show, -}; - -static struct integrity_sysfs_entry integrity_tag_size_entry =3D { - .attr =3D { .name =3D "tag_size", .mode =3D 0444 }, - .show =3D integrity_tag_size_show, -}; - -static struct integrity_sysfs_entry integrity_interval_entry =3D { - .attr =3D { .name =3D "protection_interval_bytes", .mode =3D 0444 }, - .show =3D integrity_interval_show, -}; - -static struct integrity_sysfs_entry integrity_verify_entry =3D { - .attr =3D { .name =3D "read_verify", .mode =3D 0644 }, - .show =3D integrity_verify_show, - .store =3D integrity_verify_store, -}; - -static struct integrity_sysfs_entry integrity_generate_entry =3D { - .attr =3D { .name =3D "write_generate", .mode =3D 0644 }, - .show =3D integrity_generate_show, - .store =3D integrity_generate_store, -}; - -static struct integrity_sysfs_entry integrity_device_entry =3D { - .attr =3D { .name =3D "device_is_integrity_capable", .mode =3D 0444 }, - .show =3D integrity_device_show, -}; +static DEVICE_ATTR_RO(format); +static DEVICE_ATTR_RO(tag_size); +static DEVICE_ATTR_RO(protection_interval_bytes); +static DEVICE_ATTR_RW(read_verify); +static DEVICE_ATTR_RW(write_generate); +static DEVICE_ATTR_RO(device_is_integrity_capable); =20 static struct attribute *integrity_attrs[] =3D { - &integrity_format_entry.attr, - &integrity_tag_size_entry.attr, - &integrity_interval_entry.attr, - &integrity_verify_entry.attr, - &integrity_generate_entry.attr, - &integrity_device_entry.attr, - NULL, + &dev_attr_format.attr, + &dev_attr_tag_size.attr, + &dev_attr_protection_interval_bytes.attr, + &dev_attr_read_verify.attr, + &dev_attr_write_generate.attr, + &dev_attr_device_is_integrity_capable.attr, + NULL }; ATTRIBUTE_GROUPS(integrity); =20 --=20 2.40.0 From nobody Fri Apr 19 16:45:32 2024 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 294BFC61DA4 for ; Sat, 18 Mar 2023 17:36:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230019AbjCRRgv (ORCPT ); Sat, 18 Mar 2023 13:36:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229999AbjCRRgl (ORCPT ); Sat, 18 Mar 2023 13:36:41 -0400 Received: from todd.t-8ch.de (todd.t-8ch.de [IPv6:2a01:4f8:c010:41de::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1BF4F32CCC; Sat, 18 Mar 2023 10:36:34 -0700 (PDT) From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1679160992; bh=Xz3A71Xt+usyZIbojziGhRFnHUkQe6YfrFKvdDZ19dg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jXPtwAxwMMwwP6K+ga/8tz18pVPeNxGGMBIWsAs2YaZJ/ZmKXdSZbAraqmFoSD2BD UE9YjJBnMzATdi4Nui9UvcLUcyKAjoBBd5CfVaEtVGYCRP/YFJBya51YibEw4RRZCU LgbHbZOpNHkiwI1KN8Sc3cdgoTdtwvhaTqqI65Jw= Date: Sat, 18 Mar 2023 17:36:25 +0000 Subject: [PATCH v3 3/3] blk-integrity: register sysfs attributes on struct device MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230309-kobj_release-gendisk_integrity-v3-3-ceccb4493c46@weissschuh.net> References: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> In-Reply-To: <20230309-kobj_release-gendisk_integrity-v3-0-ceccb4493c46@weissschuh.net> To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Martin K. Petersen" , Christoph Hellwig , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1679160989; l=6072; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=Xz3A71Xt+usyZIbojziGhRFnHUkQe6YfrFKvdDZ19dg=; b=2U3O7ocMYoeaeihuqJWefsHccVSxbvUqWMscIYKs5VQpG/9Xji88guNw1K7fmxChCkDUm0fG6 4f/rGktRrV5AXbm2wG7H0Ql1KG2GXgNuxKitjh19AIe+AGjw6E7Cs7e X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The "integrity" kobject only acted as a holder for static sysfs entries. It also was embedded into struct gendisk without managing it, violating assumptions of the driver core. Instead register the sysfs entries directly onto the struct device. Also drop the now unused member integrity_kobj from struct gendisk. Suggested-by: Christoph Hellwig Signed-off-by: Thomas Wei=C3=9Fschuh Reviewed-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- block/blk-integrity.c | 55 +++-------------------------------------------= ---- block/blk.h | 10 +-------- block/genhd.c | 12 ++++------- include/linux/blkdev.h | 3 --- 4 files changed, 8 insertions(+), 72 deletions(-) diff --git a/block/blk-integrity.c b/block/blk-integrity.c index 1cbfdea88c72..d4e9b4556d14 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -212,31 +212,6 @@ bool blk_integrity_merge_bio(struct request_queue *q, = struct request *req, return true; } =20 -static ssize_t integrity_attr_show(struct kobject *kobj, struct attribute = *attr, - char *page) -{ - struct gendisk *disk =3D container_of(kobj, struct gendisk, integrity_kob= j); - struct device *dev =3D disk_to_dev(disk); - struct device_attribute *dev_attr =3D - container_of(attr, struct device_attribute, attr); - - return dev_attr->show(dev, dev_attr, page); -} - -static ssize_t integrity_attr_store(struct kobject *kobj, - struct attribute *attr, const char *page, - size_t count) -{ - struct gendisk *disk =3D container_of(kobj, struct gendisk, integrity_kob= j); - struct device *dev =3D disk_to_dev(disk); - struct device_attribute *dev_attr =3D - container_of(attr, struct device_attribute, attr); - - if (!dev_attr->store) - return 0; - return dev_attr->store(dev, dev_attr, page, count); -} - static inline struct blk_integrity *dev_to_bi(struct device *dev) { return &dev_to_disk(dev)->queue->integrity; @@ -345,16 +320,10 @@ static struct attribute *integrity_attrs[] =3D { &dev_attr_device_is_integrity_capable.attr, NULL }; -ATTRIBUTE_GROUPS(integrity); =20 -static const struct sysfs_ops integrity_ops =3D { - .show =3D &integrity_attr_show, - .store =3D &integrity_attr_store, -}; - -static const struct kobj_type integrity_ktype =3D { - .default_groups =3D integrity_groups, - .sysfs_ops =3D &integrity_ops, +const struct attribute_group blk_integrity_attr_group =3D { + .name =3D "integrity", + .attrs =3D integrity_attrs, }; =20 static blk_status_t blk_integrity_nop_fn(struct blk_integrity_iter *iter) @@ -433,21 +402,3 @@ void blk_integrity_unregister(struct gendisk *disk) memset(bi, 0, sizeof(*bi)); } EXPORT_SYMBOL(blk_integrity_unregister); - -int blk_integrity_add(struct gendisk *disk) -{ - int ret; - - ret =3D kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype, - &disk_to_dev(disk)->kobj, "%s", "integrity"); - if (!ret) - kobject_uevent(&disk->integrity_kobj, KOBJ_ADD); - return ret; -} - -void blk_integrity_del(struct gendisk *disk) -{ - kobject_uevent(&disk->integrity_kobj, KOBJ_REMOVE); - kobject_del(&disk->integrity_kobj); - kobject_put(&disk->integrity_kobj); -} diff --git a/block/blk.h b/block/blk.h index cc4e8873dfde..4859290b04a2 100644 --- a/block/blk.h +++ b/block/blk.h @@ -214,8 +214,7 @@ static inline bool integrity_req_gap_front_merge(struct= request *req, bip_next->bip_vec[0].bv_offset); } =20 -int blk_integrity_add(struct gendisk *disk); -void blk_integrity_del(struct gendisk *); +extern const struct attribute_group blk_integrity_attr_group; #else /* CONFIG_BLK_DEV_INTEGRITY */ static inline bool blk_integrity_merge_rq(struct request_queue *rq, struct request *r1, struct request *r2) @@ -248,13 +247,6 @@ static inline bool bio_integrity_endio(struct bio *bio) static inline void bio_integrity_free(struct bio *bio) { } -static inline int blk_integrity_add(struct gendisk *disk) -{ - return 0; -} -static inline void blk_integrity_del(struct gendisk *disk) -{ -} #endif /* CONFIG_BLK_DEV_INTEGRITY */ =20 unsigned long blk_rq_timeout(unsigned long timeout); diff --git a/block/genhd.c b/block/genhd.c index 02d9cfb9e077..7348c4408453 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -480,15 +480,11 @@ int __must_check device_add_disk(struct device *paren= t, struct gendisk *disk, */ pm_runtime_set_memalloc_noio(ddev, true); =20 - ret =3D blk_integrity_add(disk); - if (ret) - goto out_del_block_link; - disk->part0->bd_holder_dir =3D kobject_create_and_add("holders", &ddev->kobj); if (!disk->part0->bd_holder_dir) { ret =3D -ENOMEM; - goto out_del_integrity; + goto out_del_block_link; } disk->slave_dir =3D kobject_create_and_add("slaves", &ddev->kobj); if (!disk->slave_dir) { @@ -551,8 +547,6 @@ int __must_check device_add_disk(struct device *parent,= struct gendisk *disk, disk->slave_dir =3D NULL; out_put_holder_dir: kobject_put(disk->part0->bd_holder_dir); -out_del_integrity: - blk_integrity_del(disk); out_del_block_link: if (!sysfs_deprecated) sysfs_remove_link(block_depr, dev_name(ddev)); @@ -615,7 +609,6 @@ void del_gendisk(struct gendisk *disk) if (WARN_ON_ONCE(!disk_live(disk) && !(disk->flags & GENHD_FL_HIDDEN))) return; =20 - blk_integrity_del(disk); disk_del_events(disk); =20 mutex_lock(&disk->open_mutex); @@ -1152,6 +1145,9 @@ static const struct attribute_group *disk_attr_groups= [] =3D { &disk_attr_group, #ifdef CONFIG_BLK_DEV_IO_TRACE &blk_trace_attr_group, +#endif +#ifdef CONFIG_BLK_DEV_INTEGRITY + &blk_integrity_attr_group, #endif NULL }; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 941304f17492..cc2b9e110728 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -163,9 +163,6 @@ struct gendisk { struct timer_rand_state *random; atomic_t sync_io; /* RAID */ struct disk_events *ev; -#ifdef CONFIG_BLK_DEV_INTEGRITY - struct kobject integrity_kobj; -#endif /* CONFIG_BLK_DEV_INTEGRITY */ =20 #ifdef CONFIG_BLK_DEV_ZONED /* --=20 2.40.0