From patchwork Wed Jul 5 18:58:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 699573 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 F2116C04A6A for ; Wed, 5 Jul 2023 18:59:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233262AbjGES7H (ORCPT ); Wed, 5 Jul 2023 14:59:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233179AbjGES65 (ORCPT ); Wed, 5 Jul 2023 14:58:57 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 291511BC0; Wed, 5 Jul 2023 11:58:51 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linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, ecryptfs@vger.kernel.org, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, linux-karma-devel@lists.sourceforge.net, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, linux-hardening@vger.kernel.org, reiserfs-devel@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: Jan Kara Subject: [PATCH v2 07/92] fs: add ctime accessors infrastructure Date: Wed, 5 Jul 2023 14:58:10 -0400 Message-ID: <20230705185812.579118-2-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230705185812.579118-1-jlayton@kernel.org> References: <20230705185812.579118-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org struct timespec64 has unused bits in the tv_nsec field that can be used for other purposes. In future patches, we're going to change how the inode->i_ctime is accessed in certain inodes in order to make use of them. In order to do that safely though, we'll need to eradicate raw accesses of the inode->i_ctime field from the kernel. Add new accessor functions for the ctime that we use to replace them. Reviewed-by: Jan Kara Reviewed-by: Luis Chamberlain Signed-off-by: Jeff Layton --- fs/inode.c | 16 ++++++++++++++++ include/linux/fs.h | 45 ++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 60 insertions(+), 1 deletion(-) diff --git a/fs/inode.c b/fs/inode.c index d37fad91c8da..21b026d95b51 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -2499,6 +2499,22 @@ struct timespec64 current_time(struct inode *inode) } EXPORT_SYMBOL(current_time); +/** + * inode_set_ctime_current - set the ctime to current_time + * @inode: inode + * + * Set the inode->i_ctime to the current value for the inode. Returns + * the current value that was assigned to i_ctime. + */ +struct timespec64 inode_set_ctime_current(struct inode *inode) +{ + struct timespec64 now = current_time(inode); + + inode_set_ctime(inode, now.tv_sec, now.tv_nsec); + return now; +} +EXPORT_SYMBOL(inode_set_ctime_current); + /** * in_group_or_capable - check whether caller is CAP_FSETID privileged * @idmap: idmap of the mount @inode was found from diff --git a/include/linux/fs.h b/include/linux/fs.h index 824accb89a91..bdfbd11a5811 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1474,7 +1474,50 @@ static inline bool fsuidgid_has_mapping(struct super_block *sb, kgid_has_mapping(fs_userns, kgid); } -extern struct timespec64 current_time(struct inode *inode); +struct timespec64 current_time(struct inode *inode); +struct timespec64 inode_set_ctime_current(struct inode *inode); + +/** + * inode_get_ctime - fetch the current ctime from the inode + * @inode: inode from which to fetch ctime + * + * Grab the current ctime from the inode and return it. + */ +static inline struct timespec64 inode_get_ctime(const struct inode *inode) +{ + return inode->i_ctime; +} + +/** + * inode_set_ctime_to_ts - set the ctime in the inode + * @inode: inode in which to set the ctime + * @ts: value to set in the ctime field + * + * Set the ctime in @inode to @ts + */ +static inline struct timespec64 inode_set_ctime_to_ts(struct inode *inode, + struct timespec64 ts) +{ + inode->i_ctime = ts; + return ts; +} + +/** + * inode_set_ctime - set the ctime in the inode + * @inode: inode in which to set the ctime + * @sec: tv_sec value to set + * @nsec: tv_nsec value to set + * + * Set the ctime in @inode to { @sec, @nsec } + */ +static inline struct timespec64 inode_set_ctime(struct inode *inode, + time64_t sec, long nsec) +{ + struct timespec64 ts = { .tv_sec = sec, + .tv_nsec = nsec }; + + return inode_set_ctime_to_ts(inode, ts); +} /* * Snapshotting support. From patchwork Wed Jul 5 18:58:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 700338 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 19BA0C001DF for ; Wed, 5 Jul 2023 18:59:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232494AbjGES7a (ORCPT ); Wed, 5 Jul 2023 14:59:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233179AbjGES7W (ORCPT ); Wed, 5 Jul 2023 14:59:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5080F199E; Wed, 5 Jul 2023 11:59:10 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linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Subject: [PATCH v2 08/92] fs: new helper: simple_rename_timestamp Date: Wed, 5 Jul 2023 14:58:11 -0400 Message-ID: <20230705185812.579118-3-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230705185812.579118-1-jlayton@kernel.org> References: <20230705185812.579118-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org A rename potentially involves updating 4 different inode timestamps. Add a function that handles the details sanely, and convert the libfs.c callers to use it. Signed-off-by: Jeff Layton --- fs/libfs.c | 36 +++++++++++++++++++++++++++--------- include/linux/fs.h | 2 ++ 2 files changed, 29 insertions(+), 9 deletions(-) diff --git a/fs/libfs.c b/fs/libfs.c index a7e56baf8bbd..9ee79668c909 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -692,6 +692,31 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry) } EXPORT_SYMBOL(simple_rmdir); +/** + * simple_rename_timestamp - update the various inode timestamps for rename + * @old_dir: old parent directory + * @old_dentry: dentry that is being renamed + * @new_dir: new parent directory + * @new_dentry: target for rename + * + * POSIX mandates that the old and new parent directories have their ctime and + * mtime updated, and that inodes of @old_dentry and @new_dentry (if any), have + * their ctime updated. + */ +void simple_rename_timestamp(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry) +{ + struct inode *newino = d_inode(new_dentry); + + old_dir->i_mtime = inode_set_ctime_current(old_dir); + if (new_dir != old_dir) + new_dir->i_mtime = inode_set_ctime_current(new_dir); + inode_set_ctime_current(d_inode(old_dentry)); + if (newino) + inode_set_ctime_current(newino); +} +EXPORT_SYMBOL_GPL(simple_rename_timestamp); + int simple_rename_exchange(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { @@ -707,11 +732,7 @@ int simple_rename_exchange(struct inode *old_dir, struct dentry *old_dentry, inc_nlink(old_dir); } } - old_dir->i_ctime = old_dir->i_mtime = - new_dir->i_ctime = new_dir->i_mtime = - d_inode(old_dentry)->i_ctime = - d_inode(new_dentry)->i_ctime = current_time(old_dir); - + simple_rename_timestamp(old_dir, old_dentry, new_dir, new_dentry); return 0; } EXPORT_SYMBOL_GPL(simple_rename_exchange); @@ -720,7 +741,6 @@ int simple_rename(struct mnt_idmap *idmap, struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { - struct inode *inode = d_inode(old_dentry); int they_are_dirs = d_is_dir(old_dentry); if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE)) @@ -743,9 +763,7 @@ int simple_rename(struct mnt_idmap *idmap, struct inode *old_dir, inc_nlink(new_dir); } - old_dir->i_ctime = old_dir->i_mtime = new_dir->i_ctime = - new_dir->i_mtime = inode->i_ctime = current_time(old_dir); - + simple_rename_timestamp(old_dir, old_dentry, new_dir, new_dentry); return 0; } EXPORT_SYMBOL(simple_rename); diff --git a/include/linux/fs.h b/include/linux/fs.h index bdfbd11a5811..14e38bd900f1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2979,6 +2979,8 @@ extern int simple_open(struct inode *inode, struct file *file); extern int simple_link(struct dentry *, struct inode *, struct dentry *); extern int simple_unlink(struct inode *, struct dentry *); extern int simple_rmdir(struct inode *, struct dentry *); +void simple_rename_timestamp(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry); extern int simple_rename_exchange(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry); extern int simple_rename(struct mnt_idmap *, struct inode *, From patchwork Wed Jul 5 19:00:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 700337 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 80543EB64DD for ; Wed, 5 Jul 2023 19:04:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231836AbjGETEo (ORCPT ); Wed, 5 Jul 2023 15:04:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233508AbjGETD6 (ORCPT ); Wed, 5 Jul 2023 15:03:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EA211FDC; Wed, 5 Jul 2023 12:03:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DACE7616F9; Wed, 5 Jul 2023 19:03:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BE0CC433CA; Wed, 5 Jul 2023 19:03:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688583818; bh=IFjY2ZG1/G67P/89fD6mRVOfDYWsWXSwb+QK0dFqNJ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kyPlfPUq+2nOnWMrdZof8wN2AB7vG7VWbFXzPh3rce7JWRwzaQLXNUwnECAgz3Gu2 LM3FOB/jGtRhMqyLhHiCieTjP9F16SQTqdWmJReFJGWpn4CgQFKbJbhJm1MB9T+il6 XMs3Qmdg93yJiavrPH9nySnCk9SB4gh4SS3o1sJOcwWJJldu+0MLoegHErmfNjtH7n wOf2f3Lm1wFJ+hfjji3JxmGPmOR5Fty+NLh2V1Zae6s8u3dbCBzJ2e5q4ADXwAsiWA kZqgcLlgB3MeVC+MPpJw6pvEEiAD3hPyBMbEsHlFfsbHVL9a/ETvT3ehQLhEnWTmiA SzodEM1TJAHCg== From: Jeff Layton To: Christian Brauner , Greg Kroah-Hartman Cc: Al Viro , Jan Kara , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v2 20/92] usb: convert to ctime accessor functions Date: Wed, 5 Jul 2023 15:00:45 -0400 Message-ID: <20230705190309.579783-18-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230705190309.579783-1-jlayton@kernel.org> References: <20230705185755.579053-1-jlayton@kernel.org> <20230705190309.579783-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In later patches, we're going to change how the inode's ctime field is used. Switch to using accessor functions instead of raw accesses of inode->i_ctime. Acked-by: Greg Kroah-Hartman Reviewed-by: Jan Kara Signed-off-by: Jeff Layton --- drivers/usb/core/devio.c | 16 ++++++++-------- drivers/usb/gadget/function/f_fs.c | 3 +-- drivers/usb/gadget/legacy/inode.c | 3 +-- 3 files changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 1a16a8bdea60..4f68f6ef3cc1 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -2642,21 +2642,21 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd, snoop(&dev->dev, "%s: CONTROL\n", __func__); ret = proc_control(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_BULK: snoop(&dev->dev, "%s: BULK\n", __func__); ret = proc_bulk(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_RESETEP: snoop(&dev->dev, "%s: RESETEP\n", __func__); ret = proc_resetep(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_RESET: @@ -2668,7 +2668,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd, snoop(&dev->dev, "%s: CLEAR_HALT\n", __func__); ret = proc_clearhalt(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_GETDRIVER: @@ -2695,7 +2695,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd, snoop(&dev->dev, "%s: SUBMITURB\n", __func__); ret = proc_submiturb(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; #ifdef CONFIG_COMPAT @@ -2703,14 +2703,14 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd, snoop(&dev->dev, "%s: CONTROL32\n", __func__); ret = proc_control_compat(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_BULK32: snoop(&dev->dev, "%s: BULK32\n", __func__); ret = proc_bulk_compat(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_DISCSIGNAL32: @@ -2722,7 +2722,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd, snoop(&dev->dev, "%s: SUBMITURB32\n", __func__); ret = proc_submiturb_compat(ps, p); if (ret >= 0) - inode->i_mtime = inode->i_ctime = current_time(inode); + inode->i_mtime = inode_set_ctime_current(inode); break; case USBDEVFS_IOCTL32: diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index f41a385a5c42..6e9ef35a43a7 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -1377,7 +1377,7 @@ ffs_sb_make_inode(struct super_block *sb, void *data, inode = new_inode(sb); if (inode) { - struct timespec64 ts = current_time(inode); + struct timespec64 ts = inode_set_ctime_current(inode); inode->i_ino = get_next_ino(); inode->i_mode = perms->mode; @@ -1385,7 +1385,6 @@ ffs_sb_make_inode(struct super_block *sb, void *data, inode->i_gid = perms->gid; inode->i_atime = ts; inode->i_mtime = ts; - inode->i_ctime = ts; inode->i_private = data; if (fops) inode->i_fop = fops; diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 28249d0bf062..ce9e31f3d26b 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -1969,8 +1969,7 @@ gadgetfs_make_inode (struct super_block *sb, inode->i_mode = mode; inode->i_uid = make_kuid(&init_user_ns, default_uid); inode->i_gid = make_kgid(&init_user_ns, default_gid); - inode->i_atime = inode->i_mtime = inode->i_ctime - = current_time(inode); + inode->i_atime = inode->i_mtime = inode_set_ctime_current(inode); inode->i_private = data; inode->i_fop = fops; } From patchwork Wed Jul 5 18:58:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 699572 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 D6C5AEB64DA for ; Wed, 5 Jul 2023 18:59:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232128AbjGES75 (ORCPT ); Wed, 5 Jul 2023 14:59:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39406 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232023AbjGES7t (ORCPT ); Wed, 5 Jul 2023 14:59:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F1E7198D; Wed, 5 Jul 2023 11:59:28 -0700 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linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, ecryptfs@vger.kernel.org, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, linux-karma-devel@lists.sourceforge.net, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, linux-hardening@vger.kernel.org, reiserfs-devel@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Subject: [PATCH v2 92/92] fs: rename i_ctime field to __i_ctime Date: Wed, 5 Jul 2023 14:58:12 -0400 Message-ID: <20230705185812.579118-4-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230705185812.579118-1-jlayton@kernel.org> References: <20230705185812.579118-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that everything in-tree is converted to use the accessor functions, rename the i_ctime field in the inode to discourage direct access. Signed-off-by: Jeff Layton Reviewed-by: Damien Le Moal Reviewed-by: Jan Kara --- include/linux/fs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 14e38bd900f1..b66442f91835 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -642,7 +642,7 @@ struct inode { loff_t i_size; struct timespec64 i_atime; struct timespec64 i_mtime; - struct timespec64 i_ctime; + struct timespec64 __i_ctime; /* use inode_*_ctime accessors! */ spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; u8 i_blkbits; @@ -1485,7 +1485,7 @@ struct timespec64 inode_set_ctime_current(struct inode *inode); */ static inline struct timespec64 inode_get_ctime(const struct inode *inode) { - return inode->i_ctime; + return inode->__i_ctime; } /** @@ -1498,7 +1498,7 @@ static inline struct timespec64 inode_get_ctime(const struct inode *inode) static inline struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->i_ctime = ts; + inode->__i_ctime = ts; return ts; }