From patchwork Mon Oct 17 10:57:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 615725 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 BC5C0C43219 for ; Mon, 17 Oct 2022 10:58:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231308AbiJQK6s (ORCPT ); Mon, 17 Oct 2022 06:58:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230464AbiJQK5a (ORCPT ); Mon, 17 Oct 2022 06:57:30 -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 A770D61708; Mon, 17 Oct 2022 03:57:28 -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 6E0D86105A; Mon, 17 Oct 2022 10:57:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB448C433D6; Mon, 17 Oct 2022 10:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666004246; bh=LBaEFSh5DOeyzDGsOyxhMwQpssm5JK6u2HESg5ybNII=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GcdT6b7mb+oJp742oGeuVIMOfw8oEZ0enQ18wg8Ay/lNdbFfxNrtDJeG5LwPho5dD mjrEEtQNE5tTDsZ3XJBuv/1zzQ2QeaSuOG/cCyWcsUY7eJIEeSErX+E+vAIFJQsC55 N0s4+1Hq8cIO6nsNFLSxEB+742ItXHY3Kedw1srG/T4sW8IkT4hPE77/++e78jtlwu /K5Vs5K3g2tUySh+SylFTQGTzwZWsWsW8g3y1rdekQXDShurEUkxEr/O+y+NwuXVZ7 V0SmxQbcJ+ulid2bOfa6XXx920Zn48b/9WwRFyMGnJFHPxLoEn+tBpw6zmF+eqKvTC tpSNnThfThorQ== 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, bfields@fieldses.org, brauner@kernel.org, fweimer@redhat.com Cc: linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, ceph-devel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-xfs@vger.kernel.org Subject: [PATCH v7 6/9] nfsd: move nfsd4_change_attribute to nfsfh.c Date: Mon, 17 Oct 2022 06:57:06 -0400 Message-Id: <20221017105709.10830-7-jlayton@kernel.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221017105709.10830-1-jlayton@kernel.org> References: <20221017105709.10830-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org This is a pretty big function for inlining. Move it to being non-inlined. Reviewed-by: NeilBrown Signed-off-by: Jeff Layton Acked-by: Chuck Lever --- fs/nfsd/nfsfh.c | 27 +++++++++++++++++++++++++++ fs/nfsd/nfsfh.h | 29 +---------------------------- 2 files changed, 28 insertions(+), 28 deletions(-) diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index d73434200df9..7030d9209903 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -748,3 +748,30 @@ enum fsid_source fsid_source(const struct svc_fh *fhp) return FSIDSOURCE_UUID; return FSIDSOURCE_DEV; } + +/* + * We could use i_version alone as the change attribute. However, + * i_version can go backwards after a reboot. On its own that doesn't + * necessarily cause a problem, but if i_version goes backwards and then + * is incremented again it could reuse a value that was previously used + * before boot, and a client who queried the two values might + * incorrectly assume nothing changed. + * + * By using both ctime and the i_version counter we guarantee that as + * long as time doesn't go backwards we never reuse an old value. + */ +u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode) +{ + if (inode->i_sb->s_export_op->fetch_iversion) + return inode->i_sb->s_export_op->fetch_iversion(inode); + else if (IS_I_VERSION(inode)) { + u64 chattr; + + chattr = stat->ctime.tv_sec; + chattr <<= 30; + chattr += stat->ctime.tv_nsec; + chattr += inode_query_iversion(inode); + return chattr; + } else + return time_to_chattr(&stat->ctime); +} diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h index c3ae6414fc5c..4c223a7a91d4 100644 --- a/fs/nfsd/nfsfh.h +++ b/fs/nfsd/nfsfh.h @@ -291,34 +291,7 @@ static inline void fh_clear_pre_post_attrs(struct svc_fh *fhp) fhp->fh_pre_saved = false; } -/* - * We could use i_version alone as the change attribute. However, - * i_version can go backwards after a reboot. On its own that doesn't - * necessarily cause a problem, but if i_version goes backwards and then - * is incremented again it could reuse a value that was previously used - * before boot, and a client who queried the two values might - * incorrectly assume nothing changed. - * - * By using both ctime and the i_version counter we guarantee that as - * long as time doesn't go backwards we never reuse an old value. - */ -static inline u64 nfsd4_change_attribute(struct kstat *stat, - struct inode *inode) -{ - if (inode->i_sb->s_export_op->fetch_iversion) - return inode->i_sb->s_export_op->fetch_iversion(inode); - else if (IS_I_VERSION(inode)) { - u64 chattr; - - chattr = stat->ctime.tv_sec; - chattr <<= 30; - chattr += stat->ctime.tv_nsec; - chattr += inode_query_iversion(inode); - return chattr; - } else - return time_to_chattr(&stat->ctime); -} - +u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode); extern void fh_fill_pre_attrs(struct svc_fh *fhp); extern void fh_fill_post_attrs(struct svc_fh *fhp); extern void fh_fill_both_attrs(struct svc_fh *fhp);