From patchwork Mon Nov 13 01:17:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 743506 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90EA5746C for ; Mon, 13 Nov 2023 01:19:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Bpb1VHK7" Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F60C1BF7 for ; Sun, 12 Nov 2023 17:19:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1699838366; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DpLyr/tpqshwtUpPs+VO3GjdFB4NBN5IkaEGICql5kU=; b=Bpb1VHK7jXrRmcrjj00d8Xky9A39nKa4+IcQMcnsSE2vBpinDlC2/3B9u5sDOHpASX4iBh 50D3nYmp1fWCRziR2gtdky5OOfs632+pO1W+vIuFC4RhsHXS96rQoIJCHLEuQF9Kh5Op77 CjU8k7IL4DXgg3lkvaSep2xXYLZqxBY= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-447-SyS7MEujP66SrqFmJoT7iQ-1; Sun, 12 Nov 2023 20:19:23 -0500 X-MC-Unique: SyS7MEujP66SrqFmJoT7iQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1E1AB29AA384; Mon, 13 Nov 2023 01:19:23 +0000 (UTC) Received: from li-a71a4dcc-35d1-11b2-a85c-951838863c8d.ibm.com.com (unknown [10.72.112.63]) by smtp.corp.redhat.com (Postfix) with ESMTP id 545E3C15881; Mon, 13 Nov 2023 01:19:20 +0000 (UTC) From: xiubli@redhat.com To: ceph-devel@vger.kernel.org Cc: idryomov@gmail.com, jlayton@kernel.org, vshankar@redhat.com, mchangir@redhat.com, Xiubo Li Subject: [PATCH v2 3/5] ceph: check the cephx mds auth access for setattr Date: Mon, 13 Nov 2023 09:17:04 +0800 Message-ID: <20231113011706.542551-4-xiubli@redhat.com> In-Reply-To: <20231113011706.542551-1-xiubli@redhat.com> References: <20231113011706.542551-1-xiubli@redhat.com> Precedence: bulk X-Mailing-List: ceph-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 From: Xiubo Li If we hit any failre just try to force it to do the sync setattr. URL: https://tracker.ceph.com/issues/61333 Signed-off-by: Xiubo Li --- fs/ceph/inode.c | 46 +++++++++++++++++++++++++++++++++++++--------- 1 file changed, 37 insertions(+), 9 deletions(-) diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index cf64ccb479a7..a07a425376bc 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -2487,6 +2487,34 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, bool lock_snap_rwsem = false; bool fill_fscrypt; int truncate_retry = 20; /* The RMW will take around 50ms */ + struct dentry *dentry; + char *path; + int pathlen; + u64 pathbase; + bool do_sync = false; + + dentry = d_find_alias(inode); + if (!dentry) { + do_sync = true; + } else { + path = ceph_mdsc_build_path(mdsc, dentry, &pathlen, &pathbase, 0); + if (IS_ERR(path)) { + do_sync = true; + err = 0; + } else { + err = ceph_mds_check_access(mdsc, path, MAY_WRITE); + } + ceph_mdsc_free_path(path, pathlen); + dput(dentry); + + /* For none EACCES cases will let the MDS do the mds auth check */ + if (err == -EACCES) { + return err; + } else if (err < 0) { + do_sync = true; + err = 0; + } + } retry: prealloc_cf = ceph_alloc_cap_flush(); @@ -2533,7 +2561,7 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, /* It should never be re-set once set */ WARN_ON_ONCE(ci->fscrypt_auth); - if (issued & CEPH_CAP_AUTH_EXCL) { + if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) { dirtied |= CEPH_CAP_AUTH_EXCL; kfree(ci->fscrypt_auth); ci->fscrypt_auth = (u8 *)cia->fscrypt_auth; @@ -2562,7 +2590,7 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, ceph_vinop(inode), from_kuid(&init_user_ns, inode->i_uid), from_kuid(&init_user_ns, attr->ia_uid)); - if (issued & CEPH_CAP_AUTH_EXCL) { + if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) { inode->i_uid = fsuid; dirtied |= CEPH_CAP_AUTH_EXCL; } else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 || @@ -2580,7 +2608,7 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, ceph_vinop(inode), from_kgid(&init_user_ns, inode->i_gid), from_kgid(&init_user_ns, attr->ia_gid)); - if (issued & CEPH_CAP_AUTH_EXCL) { + if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) { inode->i_gid = fsgid; dirtied |= CEPH_CAP_AUTH_EXCL; } else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 || @@ -2594,7 +2622,7 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, if (ia_valid & ATTR_MODE) { doutc(cl, "%p %llx.%llx mode 0%o -> 0%o\n", inode, ceph_vinop(inode), inode->i_mode, attr->ia_mode); - if (issued & CEPH_CAP_AUTH_EXCL) { + if (!do_sync && (issued & CEPH_CAP_AUTH_EXCL)) { inode->i_mode = attr->ia_mode; dirtied |= CEPH_CAP_AUTH_EXCL; } else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 || @@ -2611,11 +2639,11 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, inode, ceph_vinop(inode), inode->i_atime.tv_sec, inode->i_atime.tv_nsec, attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec); - if (issued & CEPH_CAP_FILE_EXCL) { + if (!do_sync && (issued & CEPH_CAP_FILE_EXCL)) { ci->i_time_warp_seq++; inode->i_atime = attr->ia_atime; dirtied |= CEPH_CAP_FILE_EXCL; - } else if ((issued & CEPH_CAP_FILE_WR) && + } else if (!do_sync && (issued & CEPH_CAP_FILE_WR) && timespec64_compare(&inode->i_atime, &attr->ia_atime) < 0) { inode->i_atime = attr->ia_atime; @@ -2651,7 +2679,7 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, CEPH_FSCRYPT_BLOCK_SIZE)); req->r_fscrypt_file = attr->ia_size; fill_fscrypt = true; - } else if ((issued & CEPH_CAP_FILE_EXCL) && attr->ia_size >= isize) { + } else if (!do_sync && (issued & CEPH_CAP_FILE_EXCL) && attr->ia_size >= isize) { if (attr->ia_size > isize) { i_size_write(inode, attr->ia_size); inode->i_blocks = calc_inode_blocks(attr->ia_size); @@ -2686,11 +2714,11 @@ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, inode, ceph_vinop(inode), inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec, attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec); - if (issued & CEPH_CAP_FILE_EXCL) { + if (!do_sync && (issued & CEPH_CAP_FILE_EXCL)) { ci->i_time_warp_seq++; inode->i_mtime = attr->ia_mtime; dirtied |= CEPH_CAP_FILE_EXCL; - } else if ((issued & CEPH_CAP_FILE_WR) && + } else if (!do_sync && (issued & CEPH_CAP_FILE_WR) && timespec64_compare(&inode->i_mtime, &attr->ia_mtime) < 0) { inode->i_mtime = attr->ia_mtime;