From patchwork Fri Aug 26 21:46:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12956650 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 8DA6FC0502E for ; Fri, 26 Aug 2022 21:47:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345142AbiHZVrX (ORCPT ); Fri, 26 Aug 2022 17:47:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345123AbiHZVrU (ORCPT ); Fri, 26 Aug 2022 17:47:20 -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 8A171C7B91; Fri, 26 Aug 2022 14:47:15 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 47B7861268; Fri, 26 Aug 2022 21:47:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4772C4347C; Fri, 26 Aug 2022 21:47:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661550433; bh=oQx6oWjyzIhz138GUNRuYCO8Reu4Bzm/n72nhLxmrGk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lirV0ZbxcbNbcoL0BnF10zelS20t1K+ap38fCYL+UCcoLsNj52My+eA0j40Qo88Yn EwNuMd+d8/EJEpqLi3smH60bDsjAdcDg3MChkLz+qvmM6zS54DApMyPKmqfgL5wMVd JN+c4txtRC6MfWBMstfwqJlERRVlY5szXgE2KEwFC719ZdkvCX0q04462I3vVxdmz4 f2gUx5TeP13Y9IjuwpfnoTZf6kOsGBEp9JwMuhhIjJbbv4PxjJfZBaFmi6GbkXFnK4 PFNg08kXMwvSTJVUa2/w4mRgFgiXdCwcrQP9ScdIspcGm5K+rMj3r9JS1TiiIiaECp MhKZM6iS5W2vw== From: Jeff Layton To: tytso@mit.edu, adilger.kernel@dilger.ca, djwong@kernel.org, david@fromorbit.com, trondmy@hammerspace.com, neilb@suse.de, viro@zeniv.linux.org.uk, zohar@linux.ibm.com, xiubli@redhat.com, chuck.lever@oracle.com, lczerner@redhat.com, jack@suse.cz, brauner@kernel.org Cc: linux-api@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ceph@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-xfs@vger.kernel.org, Benjamin Coddington , Christoph Hellwig Subject: [PATCH v3 3/7] ext4: unconditionally enable the i_version counter Date: Fri, 26 Aug 2022 17:46:59 -0400 Message-Id: <20220826214703.134870-4-jlayton@kernel.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220826214703.134870-1-jlayton@kernel.org> References: <20220826214703.134870-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The original i_version implementation was pretty expensive, requiring a log flush on every change. Because of this, it was gated behind a mount option (implemented via the MS_I_VERSION mountoption flag). Commit ae5e165d855d (fs: new API for handling inode->i_version) made the i_version flag much less expensive, so there is no longer a performance penalty from enabling it. xfs and btrfs already enable it unconditionally when the on-disk format can support it. Have ext4 ignore the SB_I_VERSION flag, and just enable it unconditionally. While we're in here, remove the handling of Opt_i_version as well since it's due for deprecation anyway. Ideally, we'd couple this change with a way to disable the i_version counter (just in case), but the way the iversion mount option was implemented makes that difficult to do. We'd need to add a new mount option altogether or do something with tune2fs. That's probably best left to later patches if it turns out to be needed. Cc: Dave Chinner Cc: Lukas Czerner Cc: Benjamin Coddington Cc: Christoph Hellwig Cc: Darrick J. Wong Signed-off-by: Jeff Layton Reviewed-by: Jan Kara --- fs/ext4/inode.c | 2 +- fs/ext4/ioctl.c | 12 ++++-------- fs/ext4/move_extent.c | 6 ++---- fs/ext4/super.c | 13 ++++--------- fs/ext4/xattr.c | 3 +-- 5 files changed, 12 insertions(+), 24 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index aa37bce4c541..6ef37269e7c0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5342,7 +5342,7 @@ int ext4_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, int error, rc = 0; int orphan = 0; const unsigned int ia_valid = attr->ia_valid; - bool inc_ivers = IS_I_VERSION(inode); + bool inc_ivers = true; if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 60e77ae9342d..ad3a294a88eb 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -452,8 +452,7 @@ static long swap_inode_boot_loader(struct super_block *sb, swap_inode_data(inode, inode_bl); inode->i_ctime = inode_bl->i_ctime = current_time(inode); - if (IS_I_VERSION(inode)) - inode_inc_iversion(inode); + inode_inc_iversion(inode); inode->i_generation = prandom_u32(); inode_bl->i_generation = prandom_u32(); @@ -667,8 +666,7 @@ static int ext4_ioctl_setflags(struct inode *inode, ext4_set_inode_flags(inode, false); inode->i_ctime = current_time(inode); - if (IS_I_VERSION(inode)) - inode_inc_iversion(inode); + inode_inc_iversion(inode); err = ext4_mark_iloc_dirty(handle, inode, &iloc); flags_err: @@ -779,8 +777,7 @@ static int ext4_ioctl_setproject(struct inode *inode, __u32 projid) EXT4_I(inode)->i_projid = kprojid; inode->i_ctime = current_time(inode); - if (IS_I_VERSION(inode)) - inode_inc_iversion(inode); + inode_inc_iversion(inode); out_dirty: rc = ext4_mark_iloc_dirty(handle, inode, &iloc); if (!err) @@ -1263,8 +1260,7 @@ static long __ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) err = ext4_reserve_inode_write(handle, inode, &iloc); if (err == 0) { inode->i_ctime = current_time(inode); - if (IS_I_VERSION(inode)) - inode_inc_iversion(inode); + inode_inc_iversion(inode); inode->i_generation = generation; err = ext4_mark_iloc_dirty(handle, inode, &iloc); } diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index d73ab3153218..285700b00d38 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -687,10 +687,8 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk, orig_inode->i_ctime = current_time(orig_inode); donor_inode->i_ctime = current_time(donor_inode); - if (IS_I_VERSION(orig_inode)) - inode_inc_iversion(orig_inode); - if (IS_I_VERSION(donor_inode)) - inode_inc_iversion(donor_inode); + inode_inc_iversion(orig_inode); + inode_inc_iversion(donor_inode); } *moved_len = o_start - orig_blk; if (*moved_len > len) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9a66abcca1a8..e7cf5361245a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1585,7 +1585,7 @@ enum { Opt_inlinecrypt, Opt_usrjquota, Opt_grpjquota, Opt_quota, Opt_noquota, Opt_barrier, Opt_nobarrier, Opt_err, - Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_i_version, + Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_dax, Opt_dax_always, Opt_dax_inode, Opt_dax_never, Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_warn_on_error, Opt_nowarn_on_error, Opt_mblk_io_submit, Opt_debug_want_extra_isize, @@ -1694,7 +1694,6 @@ static const struct fs_parameter_spec ext4_param_specs[] = { fsparam_flag ("barrier", Opt_barrier), fsparam_u32 ("barrier", Opt_barrier), fsparam_flag ("nobarrier", Opt_nobarrier), - fsparam_flag ("i_version", Opt_i_version), fsparam_flag ("dax", Opt_dax), fsparam_enum ("dax", Opt_dax_type, ext4_param_dax), fsparam_u32 ("stripe", Opt_stripe), @@ -2140,11 +2139,6 @@ static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param) case Opt_abort: ctx_set_mount_flag(ctx, EXT4_MF_FS_ABORTED); return 0; - case Opt_i_version: - ext4_msg(NULL, KERN_WARNING, deprecated_msg, param->key, "5.20"); - ext4_msg(NULL, KERN_WARNING, "Use iversion instead\n"); - ctx_set_flags(ctx, SB_I_VERSION); - return 0; case Opt_inlinecrypt: #ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT ctx_set_flags(ctx, SB_INLINECRYPT); @@ -2970,8 +2964,6 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, SEQ_OPTS_PRINT("min_batch_time=%u", sbi->s_min_batch_time); if (nodefs || sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME) SEQ_OPTS_PRINT("max_batch_time=%u", sbi->s_max_batch_time); - if (sb->s_flags & SB_I_VERSION) - SEQ_OPTS_PUTS("i_version"); if (nodefs || sbi->s_stripe) SEQ_OPTS_PRINT("stripe=%lu", sbi->s_stripe); if (nodefs || EXT4_MOUNT_DATA_FLAGS & @@ -4640,6 +4632,9 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | (test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0); + /* i_version is always enabled now */ + sb->s_flags |= SB_I_VERSION; + if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && (ext4_has_compat_features(sb) || ext4_has_ro_compat_features(sb) || diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index e975442e4ab2..36d6ba7190b6 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -2412,8 +2412,7 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, if (!error) { ext4_xattr_update_super_block(handle, inode->i_sb); inode->i_ctime = current_time(inode); - if (IS_I_VERSION(inode)) - inode_inc_iversion(inode); + inode_inc_iversion(inode); if (!value) no_expand = 0; error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);