From patchwork Tue Jan 11 19:15:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 531176 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 31042C433EF for ; Tue, 11 Jan 2022 19:18:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350916AbiAKTR6 (ORCPT ); Tue, 11 Jan 2022 14:17:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40136 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350664AbiAKTRK (ORCPT ); Tue, 11 Jan 2022 14:17:10 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15173C06175A; Tue, 11 Jan 2022 11:16:36 -0800 (PST) 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 A6E4B61260; Tue, 11 Jan 2022 19:16:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92301C36AEF; Tue, 11 Jan 2022 19:16:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641928595; bh=FgwReJZrrymt39QKv7D0kxqtpwBmDVPEOFMQ+/zD+EA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hRO2zCzZ1T83kWj2VloZpnQtziaQ41lEd86JE7mXSX5vYrWnGAIteidNB8dGpE0lJ 6d93XrzynvIIVQR2rLK9FUICSbXQ0CgY3Htxc8AECpZUIpx/mKmNUhx/6iaj7awpy3 rIX1auTI0OweUjj6SuIA81U6e0B0bEhAfPtiwSYGn0zpv2HhBzm/bFqMdj7G02ZjEg ZCK8HrQVYHsoE5qq4rRhXGbQf84hGwl9ywQQ7xVgqOkZlbzvPsHDSGW59NKDH2zOdG EcvWZbliAsyHejt5x8qS6wLicvUcXOzTt883vQYEw4i/1lAze/4DHfcb7u7EZ/dhfo z0QNrGw7ngHFw== From: Jeff Layton To: ceph-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, idryomov@gmail.com, Xiubo Li Subject: [RFC PATCH v10 34/48] ceph: add object version support for sync read Date: Tue, 11 Jan 2022 14:15:54 -0500 Message-Id: <20220111191608.88762-35-jlayton@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220111191608.88762-1-jlayton@kernel.org> References: <20220111191608.88762-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org From: Xiubo Li Always return the last object's version. Signed-off-by: Xiubo Li Signed-off-by: Jeff Layton --- fs/ceph/file.c | 11 +++++++++-- fs/ceph/super.h | 3 ++- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 4309ff942943..f14a2999f6d5 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -884,7 +884,8 @@ enum { * only return a short read to the caller if we hit EOF. */ ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, - struct iov_iter *to, int *retry_op) + struct iov_iter *to, int *retry_op, + u64 *last_objver) { struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_fs_client *fsc = ceph_inode_to_client(inode); @@ -893,6 +894,7 @@ ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, u64 off = *ki_pos; u64 len = iov_iter_count(to); u64 i_size = i_size_read(inode); + u64 objver = 0; dout("sync_read on inode %p %llu~%u\n", inode, *ki_pos, (unsigned)len); @@ -951,6 +953,8 @@ ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, req->r_end_latency, len, ret); + if (ret > 0) + objver = req->r_version; ceph_osdc_put_request(req); i_size = i_size_read(inode); @@ -1007,6 +1011,9 @@ ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, } } + if (last_objver && ret > 0) + *last_objver = objver; + dout("sync_read result %zd retry_op %d\n", ret, *retry_op); return ret; } @@ -1021,7 +1028,7 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to, (unsigned)iov_iter_count(to), (file->f_flags & O_DIRECT) ? "O_DIRECT" : ""); - return __ceph_sync_read(inode, &iocb->ki_pos, to, retry_op); + return __ceph_sync_read(inode, &iocb->ki_pos, to, retry_op, NULL); } struct ceph_aio_request { diff --git a/fs/ceph/super.h b/fs/ceph/super.h index eb91586ad8f3..c17622778720 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1259,7 +1259,8 @@ extern int ceph_open(struct inode *inode, struct file *file); extern int ceph_atomic_open(struct inode *dir, struct dentry *dentry, struct file *file, unsigned flags, umode_t mode); extern ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, - struct iov_iter *to, int *retry_op); + struct iov_iter *to, int *retry_op, + u64 *last_objver); extern int ceph_release(struct inode *inode, struct file *filp); extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page, char *data, size_t len);