From patchwork Thu Sep 28 11:03:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13402706 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 298F4E732C5 for ; Thu, 28 Sep 2023 11:04:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232069AbjI1LEF (ORCPT ); Thu, 28 Sep 2023 07:04:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231997AbjI1LD7 (ORCPT ); Thu, 28 Sep 2023 07:03:59 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0989DCDC; Thu, 28 Sep 2023 04:03:32 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BBF2CC433CD; Thu, 28 Sep 2023 11:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695899012; bh=2HU082C0O+wshN8razE9iX9Rxehg6mRJCvsU5n9rFmw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cgJqBVdgRTRGPcB9AYO9nuxbQNU/aRFlsoq2/9IfdhTUxto7jaIgTs2iK3Hh6VNmI PQNGXum64iBmE5gmxTB5fzhsNqjzKt2sLpABU1iY4QR3sLG/3TAi2tRkz3bK5NdR2Q 5J/x2S1ciuMIVP8CxOGFxyla+hxGROy5UoKNIuzR78QFdYK0UlmPcZ7xnSW65TY0z1 d09jqnFZdRWx08/ZfFzae3DcpVgwGYgcj94ylvD+5VeIqKKaZOw2/kkGfhLURz1SoJ LecijjrtKtsZor5I1BxBnr+8zBdASh0oRnrtfNreKI0opyGPJWi1hjF5WHyNrggNrR Xz99F3TmopI2w== From: Jeff Layton To: Alexander Viro , Christian Brauner , Linus Torvalds , David Sterba , Amir Goldstein , Theodore Ts'o , Eric Biederman , Kees Cook , Jeremy Kerr , Arnd Bergmann , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Greg Kroah-Hartman , =?utf-8?q?Arve_Hj=C3=B8nne?= =?utf-8?q?v=C3=A5g?= , Todd Kjos , Martijn Coenen , Joel Fernandes , Carlos Llamas , Suren Baghdasaryan , Mattia Dongili , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Brad Warrum , Ritu Agarwal , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Mark Gross , Jiri Slaby , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Sterba , David Howells , Marc Dionne , Ian Kent , Luis de Bethencourt , Salah Triki , "Tigran A. Aivazian" , Chris Mason , Josef Bacik , Xiubo Li , Ilya Dryomov , Jan Harkes , coda@cs.cmu.edu, Joel Becker , Christoph Hellwig , Nicolas Pitre , "Rafael J. Wysocki" , Ard Biesheuvel , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Namjae Jeon , Sungjong Seo , Jan Kara , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , Christoph Hellwig , Miklos Szeredi , Bob Peterson , Andreas Gruenbacher , Richard Weinberger , Anton Ivanov , Johannes Berg , Mikulas Patocka , Mike Kravetz , Muchun Song , Jan Kara , David Woodhouse , Dave Kleikamp , Tejun Heo , Trond Myklebust , Anna Schumaker , Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Ryusuke Konishi , Anton Altaparmakov , Konstantin Komarov , Mark Fasheh , Joseph Qi , Bob Copeland , Mike Marshall , Martin Brandenburg , Luis Chamberlain , Iurii Zaikin , Tony Luck , "Guilherme G. Piccoli" , Anders Larsen , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Sergey Senozhatsky , Phillip Lougher , Steven Rostedt , Masami Hiramatsu , Evgeniy Dushistov , Chandan Babu R , "Darrick J. Wong" , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Hugh Dickins , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley , Eric Paris Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-rdma@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, gfs2@lists.linux.dev, 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 01/87] fs: new accessor methods for atime and mtime Date: Thu, 28 Sep 2023 07:03:00 -0400 Message-ID: <20230928110300.32891-2-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230928110300.32891-1-jlayton@kernel.org> References: <20230928110300.32891-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Recently, we converted the ctime accesses in the kernel to use new accessor functions. Linus recently pointed out though that if we add accessors for the atime and mtime, then that would allow us to seamlessly change how these timestamps are stored in the inode. Add new accessor functions for the atime and mtime that mirror the accessors for the ctime. Signed-off-by: Jeff Layton --- fs/libfs.c | 13 +++++++++++++ include/linux/fs.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) diff --git a/fs/libfs.c b/fs/libfs.c index 37f2d34ee090..f5cdc7f7f5b5 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1912,3 +1912,16 @@ ssize_t direct_write_fallback(struct kiocb *iocb, struct iov_iter *iter, return direct_written + buffered_written; } EXPORT_SYMBOL_GPL(direct_write_fallback); + +/** + * simple_inode_init_ts - initialize the timestamps for a new inode + * @inode: inode to be initialized + * + * When a new inode is created, most filesystems set the timestamps to the + * current time. Add a helper to do this. + */ +struct timespec64 simple_inode_init_ts(struct inode *inode); +{ + return inode->i_atime = inode->i_mtime = inode_set_ctime_current(inode); +} +EXPORT_SYMBOL(simple_inode_init_ts); diff --git a/include/linux/fs.h b/include/linux/fs.h index b528f063e8ff..12d247b82aa0 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1553,6 +1553,48 @@ static inline struct timespec64 inode_set_ctime(struct inode *inode, return inode_set_ctime_to_ts(inode, ts); } +static inline struct timespec64 inode_get_atime(const struct inode *inode) +{ + return inode->i_atime; +} + +static inline struct timespec64 inode_set_atime_to_ts(struct inode *inode, + struct timespec64 ts) +{ + inode->i_atime = ts; + return ts; +} + +static inline struct timespec64 inode_set_atime(struct inode *inode, + time64_t sec, long nsec) +{ + struct timespec64 ts = { .tv_sec = sec, + .tv_nsec = nsec }; + return inode_set_atime_to_ts(inode, ts); +} + +static inline struct timespec64 inode_get_mtime(const struct inode *inode) +{ + return inode->i_mtime; +} + +static inline struct timespec64 inode_set_mtime_to_ts(struct inode *inode, + struct timespec64 ts) +{ + inode->i_mtime = ts; + return ts; +} + +static inline struct timespec64 inode_set_mtime(struct inode *inode, + time64_t sec, long nsec) +{ + struct timespec64 ts = { .tv_sec = sec, + .tv_nsec = nsec }; + return inode_set_mtime_to_ts(inode, ts); +} + +struct timespec64 simple_inode_init_ts(struct inode *inode); + /* * Snapshotting support. */ From patchwork Thu Sep 28 11:02:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13402707 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 546A7E732C0 for ; Thu, 28 Sep 2023 11:05:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232298AbjI1LFh (ORCPT ); Thu, 28 Sep 2023 07:05:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231981AbjI1LEl (ORCPT ); Thu, 28 Sep 2023 07:04:41 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D442F1A4; Thu, 28 Sep 2023 04:04:37 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FEA5C433C9; Thu, 28 Sep 2023 11:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695899077; bh=ruBVBlbxk43QmbfwYylX+XKh2opy3/NQx5bRlLNo8m8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BiewGpLq2Ju9FF4X5MfXOLjuyzPXKBGx+Dp4rMCgVoZr8X5Nhm8d142DHdibiaZP+ ua5iyJ+YAOv4lHl/ygQTjt2hzLx/vaRiJF6DZHRTju11SbID1WA31rEZHMATOqdYBO IVhB23S3lFZvugNAb0+RfA1TjpI6tiZcc0GefmMD6LOQBof/r2fi5n5x5pyQjIRzs7 S8/dlv8sr4TEBDdj9yuyZAujIM65oX5Sk4W7ybZeYbuAOfSwtjq255CjVmHyo7RO9z 5oonsTrCFKd4T51EiDXSUjpOm61C8IUuUVhumDolbhEEA6PV64+EVnAy1rgrDN/AMj igRYnN5RZgMpw== From: Jeff Layton To: Alexander Viro , Christian Brauner , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Subject: [PATCH 22/87] fs/btrfs: convert to new inode {a,m}time accessors Date: Thu, 28 Sep 2023 07:02:31 -0400 Message-ID: <20230928110413.33032-21-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230928110413.33032-1-jlayton@kernel.org> References: <20230928110300.32891-1-jlayton@kernel.org> <20230928110413.33032-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Signed-off-by: Jeff Layton --- fs/btrfs/delayed-inode.c | 16 ++++++++-------- fs/btrfs/file.c | 18 ++++++++++-------- fs/btrfs/inode.c | 39 ++++++++++++++++++++------------------- fs/btrfs/reflink.c | 2 +- fs/btrfs/transaction.c | 3 ++- fs/btrfs/tree-log.c | 8 ++++---- 6 files changed, 45 insertions(+), 41 deletions(-) diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index caf0bbd028d1..c578a6fc796c 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1834,14 +1834,14 @@ static void fill_stack_inode_item(struct btrfs_trans_handle *trans, btrfs_set_stack_inode_block_group(inode_item, 0); btrfs_set_stack_timespec_sec(&inode_item->atime, - inode->i_atime.tv_sec); + inode_get_atime(inode).tv_sec); btrfs_set_stack_timespec_nsec(&inode_item->atime, - inode->i_atime.tv_nsec); + inode_get_atime(inode).tv_nsec); btrfs_set_stack_timespec_sec(&inode_item->mtime, - inode->i_mtime.tv_sec); + inode_get_mtime(inode).tv_sec); btrfs_set_stack_timespec_nsec(&inode_item->mtime, - inode->i_mtime.tv_nsec); + inode_get_mtime(inode).tv_nsec); btrfs_set_stack_timespec_sec(&inode_item->ctime, inode_get_ctime(inode).tv_sec); @@ -1891,11 +1891,11 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev) btrfs_inode_split_flags(btrfs_stack_inode_flags(inode_item), &BTRFS_I(inode)->flags, &BTRFS_I(inode)->ro_flags); - inode->i_atime.tv_sec = btrfs_stack_timespec_sec(&inode_item->atime); - inode->i_atime.tv_nsec = btrfs_stack_timespec_nsec(&inode_item->atime); + inode_set_atime(inode, btrfs_stack_timespec_sec(&inode_item->atime), + btrfs_stack_timespec_nsec(&inode_item->atime)); - inode->i_mtime.tv_sec = btrfs_stack_timespec_sec(&inode_item->mtime); - inode->i_mtime.tv_nsec = btrfs_stack_timespec_nsec(&inode_item->mtime); + inode_set_mtime(inode, btrfs_stack_timespec_sec(&inode_item->mtime), + btrfs_stack_timespec_nsec(&inode_item->mtime)); inode_set_ctime(inode, btrfs_stack_timespec_sec(&inode_item->ctime), btrfs_stack_timespec_nsec(&inode_item->ctime)); diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 361535c71c0f..278a4ea651e1 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1108,17 +1108,18 @@ void btrfs_check_nocow_unlock(struct btrfs_inode *inode) static void update_time_for_write(struct inode *inode) { - struct timespec64 now, ctime; + struct timespec64 now, ts; if (IS_NOCMTIME(inode)) return; now = current_time(inode); - if (!timespec64_equal(&inode->i_mtime, &now)) - inode->i_mtime = now; + ts = inode_get_mtime(inode); + if (!timespec64_equal(&ts, &now)) + inode_set_mtime_to_ts(inode, now); - ctime = inode_get_ctime(inode); - if (!timespec64_equal(&ctime, &now)) + ts = inode_get_ctime(inode); + if (!timespec64_equal(&ts, &now)) inode_set_ctime_to_ts(inode, now); if (IS_I_VERSION(inode)) @@ -2473,7 +2474,8 @@ int btrfs_replace_file_extents(struct btrfs_inode *inode, inode_inc_iversion(&inode->vfs_inode); if (!extent_info || extent_info->update_times) - inode->vfs_inode.i_mtime = inode_set_ctime_current(&inode->vfs_inode); + inode_set_mtime_to_ts(&inode->vfs_inode, + inode_set_ctime_current(&inode->vfs_inode)); ret = btrfs_update_inode(trans, root, inode); if (ret) @@ -2714,7 +2716,7 @@ static int btrfs_punch_hole(struct file *file, loff_t offset, loff_t len) ASSERT(trans != NULL); inode_inc_iversion(inode); - inode->i_mtime = inode_set_ctime_current(inode); + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); ret = btrfs_update_inode(trans, root, BTRFS_I(inode)); updated_inode = true; btrfs_end_transaction(trans); @@ -2734,7 +2736,7 @@ static int btrfs_punch_hole(struct file *file, loff_t offset, loff_t len) struct timespec64 now = inode_set_ctime_current(inode); inode_inc_iversion(inode); - inode->i_mtime = now; + inode_set_mtime_to_ts(inode, now); trans = btrfs_start_transaction(root, 1); if (IS_ERR(trans)) { ret = PTR_ERR(trans); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 7814b9d654ce..e35939e68fc5 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3754,11 +3754,11 @@ static int btrfs_read_locked_inode(struct inode *inode, btrfs_inode_set_file_extent_range(BTRFS_I(inode), 0, round_up(i_size_read(inode), fs_info->sectorsize)); - inode->i_atime.tv_sec = btrfs_timespec_sec(leaf, &inode_item->atime); - inode->i_atime.tv_nsec = btrfs_timespec_nsec(leaf, &inode_item->atime); + inode_set_atime(inode, btrfs_timespec_sec(leaf, &inode_item->atime), + btrfs_timespec_nsec(leaf, &inode_item->atime)); - inode->i_mtime.tv_sec = btrfs_timespec_sec(leaf, &inode_item->mtime); - inode->i_mtime.tv_nsec = btrfs_timespec_nsec(leaf, &inode_item->mtime); + inode_set_mtime(inode, btrfs_timespec_sec(leaf, &inode_item->mtime), + btrfs_timespec_nsec(leaf, &inode_item->mtime)); inode_set_ctime(inode, btrfs_timespec_sec(leaf, &inode_item->ctime), btrfs_timespec_nsec(leaf, &inode_item->ctime)); @@ -3922,14 +3922,14 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, btrfs_set_token_inode_nlink(&token, item, inode->i_nlink); btrfs_set_token_timespec_sec(&token, &item->atime, - inode->i_atime.tv_sec); + inode_get_atime(inode).tv_sec); btrfs_set_token_timespec_nsec(&token, &item->atime, - inode->i_atime.tv_nsec); + inode_get_atime(inode).tv_nsec); btrfs_set_token_timespec_sec(&token, &item->mtime, - inode->i_mtime.tv_sec); + inode_get_mtime(inode).tv_sec); btrfs_set_token_timespec_nsec(&token, &item->mtime, - inode->i_mtime.tv_nsec); + inode_get_mtime(inode).tv_nsec); btrfs_set_token_timespec_sec(&token, &item->ctime, inode_get_ctime(inode).tv_sec); @@ -4133,7 +4133,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans, inode_inc_iversion(&inode->vfs_inode); inode_inc_iversion(&dir->vfs_inode); inode_set_ctime_current(&inode->vfs_inode); - dir->vfs_inode.i_mtime = inode_set_ctime_current(&dir->vfs_inode); + inode_set_mtime_to_ts(&dir->vfs_inode, inode_set_ctime_current(&dir->vfs_inode)); ret = btrfs_update_inode(trans, root, dir); out: return ret; @@ -4306,7 +4306,7 @@ static int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, btrfs_i_size_write(dir, dir->vfs_inode.i_size - fname.disk_name.len * 2); inode_inc_iversion(&dir->vfs_inode); - dir->vfs_inode.i_mtime = inode_set_ctime_current(&dir->vfs_inode); + inode_set_mtime_to_ts(&dir->vfs_inode, inode_set_ctime_current(&dir->vfs_inode)); ret = btrfs_update_inode_fallback(trans, root, dir); if (ret) btrfs_abort_transaction(trans, ret); @@ -4956,7 +4956,8 @@ static int btrfs_setsize(struct inode *inode, struct iattr *attr) if (newsize != oldsize) { inode_inc_iversion(inode); if (!(mask & (ATTR_CTIME | ATTR_MTIME))) { - inode->i_mtime = inode_set_ctime_current(inode); + inode_set_mtime_to_ts(inode, + inode_set_ctime_current(inode)); } } @@ -5600,9 +5601,9 @@ static struct inode *new_simple_dir(struct inode *dir, inode->i_opflags &= ~IOP_XATTR; inode->i_fop = &simple_dir_operations; inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO; - inode->i_mtime = inode_set_ctime_current(inode); - inode->i_atime = dir->i_atime; - BTRFS_I(inode)->i_otime = inode->i_mtime; + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); + inode_set_atime_to_ts(inode, inode_get_atime(dir)); + BTRFS_I(inode)->i_otime = inode_get_mtime(inode); inode->i_uid = dir->i_uid; inode->i_gid = dir->i_gid; @@ -6277,9 +6278,9 @@ int btrfs_create_new_inode(struct btrfs_trans_handle *trans, goto discard; } - inode->i_mtime = inode_set_ctime_current(inode); - inode->i_atime = inode->i_mtime; - BTRFS_I(inode)->i_otime = inode->i_mtime; + simple_inode_init_ts(inode); + + BTRFS_I(inode)->i_otime = inode_get_mtime(inode); /* * We're going to fill the inode item now, so at this point the inode @@ -6444,8 +6445,8 @@ int btrfs_add_link(struct btrfs_trans_handle *trans, * values (the ones it had when the fsync was done). */ if (!test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) - parent_inode->vfs_inode.i_mtime = - inode_set_ctime_current(&parent_inode->vfs_inode); + inode_set_mtime_to_ts(&parent_inode->vfs_inode, + inode_set_ctime_current(&parent_inode->vfs_inode)); ret = btrfs_update_inode(trans, root, parent_inode); if (ret) diff --git a/fs/btrfs/reflink.c b/fs/btrfs/reflink.c index 65d2bd6910f2..13ecb4f85941 100644 --- a/fs/btrfs/reflink.c +++ b/fs/btrfs/reflink.c @@ -30,7 +30,7 @@ static int clone_finish_inode_update(struct btrfs_trans_handle *trans, inode_inc_iversion(inode); if (!no_time_update) { - inode->i_mtime = inode_set_ctime_current(inode); + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); } /* * We round up to the block size at eof when determining which diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index c780d3729463..38a2775c5c7b 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1860,7 +1860,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_i_size_write(BTRFS_I(parent_inode), parent_inode->i_size + fname.disk_name.len * 2); - parent_inode->i_mtime = inode_set_ctime_current(parent_inode); + inode_set_mtime_to_ts(parent_inode, + inode_set_ctime_current(parent_inode)); ret = btrfs_update_inode_fallback(trans, parent_root, BTRFS_I(parent_inode)); if (ret) { btrfs_abort_transaction(trans, ret); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index cbb17b542131..3f33e18f6d3e 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -4138,14 +4138,14 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, btrfs_set_token_inode_nlink(&token, item, inode->i_nlink); btrfs_set_token_timespec_sec(&token, &item->atime, - inode->i_atime.tv_sec); + inode_get_atime(inode).tv_sec); btrfs_set_token_timespec_nsec(&token, &item->atime, - inode->i_atime.tv_nsec); + inode_get_atime(inode).tv_nsec); btrfs_set_token_timespec_sec(&token, &item->mtime, - inode->i_mtime.tv_sec); + inode_get_mtime(inode).tv_sec); btrfs_set_token_timespec_nsec(&token, &item->mtime, - inode->i_mtime.tv_nsec); + inode_get_mtime(inode).tv_nsec); btrfs_set_token_timespec_sec(&token, &item->ctime, inode_get_ctime(inode).tv_sec); From patchwork Thu Sep 28 11:05:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13402819 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 890F6E732C7 for ; Thu, 28 Sep 2023 11:19:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232327AbjI1LTK (ORCPT ); Thu, 28 Sep 2023 07:19:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232043AbjI1LTA (ORCPT ); Thu, 28 Sep 2023 07:19:00 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E9953C0E; Thu, 28 Sep 2023 04:06:10 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B45DC433C8; Thu, 28 Sep 2023 11:05:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695899170; bh=AhfBjRw4Zieo7d/UWgS6g+DDX4jTgfxPdqjByEx9qhM=; h=From:To:Cc:Subject:Date:From; b=V+wOzFncXPhDXQFQdHny1CsSK9qUJSENwQ3KCibIzAaql9xTx9HnhDcijW4/7BOtC kszW/YDyA0AMr7XQAUyJiZeb60fme2uDkyobxKoT8cY6VhZHy5eoMPnsaN6X7TtxCq QTaef29MEouz7MkE+tPPdhmCepxFcMdSgkZxMJFkcJInXSuCSMx/JWDM3dr1kZYemo enoSOcU6aqdkN9wSvXmqf6Z9xnaErzYq51O9jQbKnwkBY5wjm/kE01rgGkYxHItLa5 5cRJCieL6/r3mfMz8yZQYtWkWaXM39nIwleCYU584hrkq3VtvO021SVUVEZ1qpwd4S nSI/tWahGoeXg== From: Jeff Layton To: Alexander Viro , Christian Brauner , Linus Torvalds , David Sterba , Amir Goldstein , Theodore Ts'o , Eric Biederman , Kees Cook , Jeremy Kerr , Arnd Bergmann , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Greg Kroah-Hartman , =?utf-8?q?Arve_Hj=C3=B8nne?= =?utf-8?q?v=C3=A5g?= , Todd Kjos , Martijn Coenen , Joel Fernandes , Carlos Llamas , Suren Baghdasaryan , Mattia Dongili , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Brad Warrum , Ritu Agarwal , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Mark Gross , Jiri Slaby , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Sterba , David Howells , Marc Dionne , Ian Kent , Luis de Bethencourt , Salah Triki , "Tigran A. 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Piccoli" , Anders Larsen , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Sergey Senozhatsky , Phillip Lougher , Steven Rostedt , Masami Hiramatsu , Evgeniy Dushistov , Chandan Babu R , "Darrick J. Wong" , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Hugh Dickins , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley , Eric Paris Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-rdma@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, gfs2@lists.linux.dev, 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 85/87] fs: rename i_atime and i_mtime fields to __i_atime and __i_mtime Date: Thu, 28 Sep 2023 07:05:52 -0400 Message-ID: <20230928110554.34758-1-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Make it clear that these fields are private now, and that the accessors should be used instead. Signed-off-by: Jeff Layton --- include/linux/fs.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 12d247b82aa0..831657011036 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -671,9 +671,9 @@ struct inode { }; dev_t i_rdev; loff_t i_size; - struct timespec64 i_atime; - struct timespec64 i_mtime; - struct timespec64 __i_ctime; /* use inode_*_ctime accessors! */ + struct timespec64 __i_atime; /* use inode_*_atime accessors */ + struct timespec64 __i_mtime; /* use inode_*_mtime accessors */ + 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; @@ -1555,13 +1555,13 @@ static inline struct timespec64 inode_set_ctime(struct inode *inode, static inline struct timespec64 inode_get_atime(const struct inode *inode) { - return inode->i_atime; + return inode->__i_atime; } static inline struct timespec64 inode_set_atime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->i_atime = ts; + inode->__i_atime = ts; return ts; } @@ -1575,13 +1575,13 @@ static inline struct timespec64 inode_set_atime(struct inode *inode, static inline struct timespec64 inode_get_mtime(const struct inode *inode) { - return inode->i_mtime; + return inode->__i_mtime; } static inline struct timespec64 inode_set_mtime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->i_mtime = ts; + inode->__i_mtime = ts; return ts; } From patchwork Thu Sep 28 11:05:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13402821 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 61424E732C7 for ; Thu, 28 Sep 2023 11:22:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232480AbjI1LW6 (ORCPT ); Thu, 28 Sep 2023 07:22:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232317AbjI1LWl (ORCPT ); Thu, 28 Sep 2023 07:22:41 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF59F49C4; Thu, 28 Sep 2023 04:06:29 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28B2DC07618; Thu, 28 Sep 2023 11:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695899185; bh=EREGf1zcL5EA1z4Sr1OlKcRcr7XPDG3rng7QCUAKDtA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bFxyq+wI82J/WQ/3LWfsBekhh8OiaT2wYsSAjrDQk/NrGOURDgw5PWuMWCgk6npZ6 gYLI9nWuVeVxeze31PlhCET+PdMZY70Xy9a1ckPrunnaxH93RrMhwAf8QKEfxBAiMW A3cOqQLFufYccE9l6906MspLgdIVzFHYGgIdgAYxkIU2uPLpvYnElaoBbxLu/GOElz nfJ0kqX0lpMPX7fozYTYh3xQ6uUVAew7yxgjGjuRy8Oehoifs61PNFQPPpZBViM2G3 Q4xpsOM8kKsqE0iTJbEpoU+nreDJHiQfBK4Xqt/1AbCybTiYxp8gYPp3ucvOuJLoxK YlW0JpzEkcqqQ== From: Jeff Layton To: Alexander Viro , Christian Brauner , Linus Torvalds , David Sterba , Amir Goldstein , Theodore Ts'o , Eric Biederman , Kees Cook , Jeremy Kerr , Arnd Bergmann , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Greg Kroah-Hartman , =?utf-8?q?Arve_Hj=C3=B8nne?= =?utf-8?q?v=C3=A5g?= , Todd Kjos , Martijn Coenen , Joel Fernandes , Carlos Llamas , Suren Baghdasaryan , Mattia Dongili , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Brad Warrum , Ritu Agarwal , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Mark Gross , Jiri Slaby , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Sterba , David Howells , Marc Dionne , Ian Kent , Luis de Bethencourt , Salah Triki , "Tigran A. Aivazian" , Chris Mason , Josef Bacik , Xiubo Li , Ilya Dryomov , Jan Harkes , coda@cs.cmu.edu, Joel Becker , Christoph Hellwig , Nicolas Pitre , "Rafael J. Wysocki" , Ard Biesheuvel , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Namjae Jeon , Sungjong Seo , Jan Kara , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , Christoph Hellwig , Miklos Szeredi , Bob Peterson , Andreas Gruenbacher , Richard Weinberger , Anton Ivanov , Johannes Berg , Mikulas Patocka , Mike Kravetz , Muchun Song , Jan Kara , David Woodhouse , Dave Kleikamp , Tejun Heo , Trond Myklebust , Anna Schumaker , Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Ryusuke Konishi , Anton Altaparmakov , Konstantin Komarov , Mark Fasheh , Joseph Qi , Bob Copeland , Mike Marshall , Martin Brandenburg , Luis Chamberlain , Iurii Zaikin , Tony Luck , "Guilherme G. Piccoli" , Anders Larsen , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Sergey Senozhatsky , Phillip Lougher , Steven Rostedt , Masami Hiramatsu , Evgeniy Dushistov , Chandan Babu R , "Darrick J. Wong" , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Hugh Dickins , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley , Eric Paris Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-rdma@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, gfs2@lists.linux.dev, 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 86/87] fs: switch timespec64 fields in inode to discrete integers Date: Thu, 28 Sep 2023 07:05:53 -0400 Message-ID: <20230928110554.34758-2-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230928110554.34758-1-jlayton@kernel.org> References: <20230928110554.34758-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This shaves 8 bytes off struct inode, according to pahole. Signed-off-by: Jeff Layton --- include/linux/fs.h | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 831657011036..de902ff2938b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -671,9 +671,12 @@ struct inode { }; dev_t i_rdev; loff_t i_size; - struct timespec64 __i_atime; /* use inode_*_atime accessors */ - struct timespec64 __i_mtime; /* use inode_*_mtime accessors */ - struct timespec64 __i_ctime; /* use inode_*_ctime accessors */ + time64_t i_atime_sec; + time64_t i_mtime_sec; + time64_t i_ctime_sec; + u32 i_atime_nsec; + u32 i_mtime_nsec; + u32 i_ctime_nsec; spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; u8 i_blkbits; @@ -1519,7 +1522,9 @@ struct timespec64 inode_set_ctime_current(struct inode *inode); */ static inline struct timespec64 inode_get_ctime(const struct inode *inode) { - return inode->__i_ctime; + struct timespec64 ts = { .tv_sec = inode->i_ctime_sec, + .tv_nsec = inode->i_ctime_nsec }; + return ts; } /** @@ -1532,7 +1537,8 @@ 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_sec = ts.tv_sec; + inode->i_ctime_nsec = ts.tv_sec; return ts; } @@ -1555,13 +1561,17 @@ static inline struct timespec64 inode_set_ctime(struct inode *inode, static inline struct timespec64 inode_get_atime(const struct inode *inode) { - return inode->__i_atime; + struct timespec64 ts = { .tv_sec = inode->i_atime_sec, + .tv_nsec = inode->i_atime_nsec }; + + return ts; } static inline struct timespec64 inode_set_atime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->__i_atime = ts; + inode->i_atime_sec = ts.tv_sec; + inode->i_atime_nsec = ts.tv_sec; return ts; } @@ -1575,13 +1585,17 @@ static inline struct timespec64 inode_set_atime(struct inode *inode, static inline struct timespec64 inode_get_mtime(const struct inode *inode) { - return inode->__i_mtime; + struct timespec64 ts = { .tv_sec = inode->i_mtime_sec, + .tv_nsec = inode->i_mtime_nsec }; + + return ts; } static inline struct timespec64 inode_set_mtime_to_ts(struct inode *inode, struct timespec64 ts) { - inode->__i_mtime = ts; + inode->i_atime_sec = ts.tv_sec; + inode->i_atime_nsec = ts.tv_sec; return ts; } From patchwork Thu Sep 28 11:05:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13402820 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 177D9E732C7 for ; Thu, 28 Sep 2023 11:21:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232364AbjI1LVo (ORCPT ); Thu, 28 Sep 2023 07:21:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232521AbjI1LV3 (ORCPT ); Thu, 28 Sep 2023 07:21:29 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0C275264; Thu, 28 Sep 2023 04:06:58 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF540C4160E; Thu, 28 Sep 2023 11:06:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695899200; bh=KcEb7Ur9VnfCswhdPaiHlW6A+8Un/231FkVSjN0vVmY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LIvJMQV9gV0uW8yl32NSd4yb2599TLMQSz3pZ7A8RvzTMK+/pPweiGT83QuRE6Ap1 RJ4tHrEtdELF24JEcAXBlbRxCLgD4fFKMvaVxDYJKFUi3JGR08fTlWqCpRUQLEU1eL PLdctIni/gLihdwFGrq6SVBHRpLIcoURicUh3JGLAt4t51ztAQPhDNYHtf1HHGTOrp XAB3XmZIrDME0ElXf57Dd8FtxB0Uiap7czp3ZlR45ObMUeHSnxd6fREH7G/U4RgfCh xv1/nw1L9/w3ErqEe74BXlZqblyXh/mVR1R03Etd6mg/RnXyu8EBj+lRYoEkTAJg+R yYzEQo7GNicAA== From: Jeff Layton To: Alexander Viro , Christian Brauner , Linus Torvalds , David Sterba , Amir Goldstein , Theodore Ts'o , Eric Biederman , Kees Cook , Jeremy Kerr , Arnd Bergmann , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Greg Kroah-Hartman , =?utf-8?q?Arve_Hj=C3=B8nne?= =?utf-8?q?v=C3=A5g?= , Todd Kjos , Martijn Coenen , Joel Fernandes , Carlos Llamas , Suren Baghdasaryan , Mattia Dongili , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Brad Warrum , Ritu Agarwal , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Mark Gross , Jiri Slaby , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Sterba , David Howells , Marc Dionne , Ian Kent , Luis de Bethencourt , Salah Triki , "Tigran A. Aivazian" , Chris Mason , Josef Bacik , Xiubo Li , Ilya Dryomov , Jan Harkes , coda@cs.cmu.edu, Joel Becker , Christoph Hellwig , Nicolas Pitre , "Rafael J. Wysocki" , Ard Biesheuvel , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Namjae Jeon , Sungjong Seo , Jan Kara , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , Christoph Hellwig , Miklos Szeredi , Bob Peterson , Andreas Gruenbacher , Richard Weinberger , Anton Ivanov , Johannes Berg , Mikulas Patocka , Mike Kravetz , Muchun Song , Jan Kara , David Woodhouse , Dave Kleikamp , Tejun Heo , Trond Myklebust , Anna Schumaker , Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Ryusuke Konishi , Anton Altaparmakov , Konstantin Komarov , Mark Fasheh , Joseph Qi , Bob Copeland , Mike Marshall , Martin Brandenburg , Luis Chamberlain , Iurii Zaikin , Tony Luck , "Guilherme G. Piccoli" , Anders Larsen , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Sergey Senozhatsky , Phillip Lougher , Steven Rostedt , Masami Hiramatsu , Evgeniy Dushistov , Chandan Babu R , "Darrick J. Wong" , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Hugh Dickins , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley , Eric Paris Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-rdma@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, autofs@vger.kernel.org, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-efi@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, gfs2@lists.linux.dev, 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 87/87] fs: move i_blocks up a few places in struct inode Date: Thu, 28 Sep 2023 07:05:54 -0400 Message-ID: <20230928110554.34758-3-jlayton@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230928110554.34758-1-jlayton@kernel.org> References: <20230928110554.34758-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The recent change to use discrete integers instead of struct timespec64 in struct inode shaved 8 bytes off of it, but it also moves the i_lock into the previous cacheline, away from the fields that it protects. Move i_blocks up above the i_lock, which moves the new 4 byte hole to just after the timestamps, without changing the size of the structure. Signed-off-by: Jeff Layton --- include/linux/fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index de902ff2938b..3e0fe0f52e7c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -677,11 +677,11 @@ struct inode { u32 i_atime_nsec; u32 i_mtime_nsec; u32 i_ctime_nsec; + blkcnt_t i_blocks; spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; u8 i_blkbits; u8 i_write_hint; - blkcnt_t i_blocks; #ifdef __NEED_I_SIZE_ORDERED seqcount_t i_size_seqcount;