From mboxrd@z Thu Jan 1 00:00:00 1970 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 633F2C433EF for ; Sun, 23 Jan 2022 00:13:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235404AbiAWANp (ORCPT ); Sat, 22 Jan 2022 19:13:45 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:45850 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235421AbiAWAMm (ORCPT ); Sat, 22 Jan 2022 19:12:42 -0500 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 sin.source.kernel.org (Postfix) with ESMTPS id B747ACE0AC0; Sun, 23 Jan 2022 00:12:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44FE4C004E1; Sun, 23 Jan 2022 00:12:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642896759; bh=HE1auXPAvotomIohwNjYUGvmFKANDR1XNJmuKVBzXmM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WpRqLKvU2DdquQVHkO0JoqX9qGYI2W8gCkkv4HzBF0jFabB4If3wtSiZBZhhb23/o frI/syBhaHXSOEPpAb0ne0v2VD5ZnlMmoInqqsbtogWaV31UPfv3n4lTCw+4iPB9rx qlDz60ByOOtaaZO+wqJv55X3BVPespIGqgtyFcfLiY85Tv8IxHAtoIFP4QkQig2dzL k/itCQw8XijUE+WqxfUH/+yAZFMVT9FZ8PTghGZbpROuLvuLK9cVpfKBfJLB85TxDZ GzET8ljSypQ1HoVAz2IuRPBG1hWu1ahH75lFcgiOSTcnXSSb4GdBX9dkQI2i26R1fW UFCi+hdJocqmA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jeff Layton , Hu Weiwen , Luis Henriques , Xiubo Li , Ilya Dryomov , Sasha Levin , ceph-devel@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 08/16] ceph: don't check for quotas on MDS stray dirs Date: Sat, 22 Jan 2022 19:12:07 -0500 Message-Id: <20220123001216.2460383-8-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220123001216.2460383-1-sashal@kernel.org> References: <20220123001216.2460383-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jeff Layton [ Upstream commit 0078ea3b0566e3da09ae8e1e4fbfd708702f2876 ] 玮文 胡 reported seeing the WARN_RATELIMIT pop when writing to an inode that had been transplanted into the stray dir. The client was trying to look up the quotarealm info from the parent and that tripped the warning. Change the ceph_vino_is_reserved helper to not throw a warning for MDS stray directories (0x100 - 0x1ff), only for reserved dirs that are not in that range. Also, fix ceph_has_realms_with_quotas to return false when encountering a reserved inode. URL: https://tracker.ceph.com/issues/53180 Reported-by: Hu Weiwen Signed-off-by: Jeff Layton Reviewed-by: Luis Henriques Reviewed-by: Xiubo Li Signed-off-by: Ilya Dryomov Signed-off-by: Sasha Levin --- fs/ceph/quota.c | 3 +++ fs/ceph/super.h | 20 ++++++++++++-------- 2 files changed, 15 insertions(+), 8 deletions(-) diff --git a/fs/ceph/quota.c b/fs/ceph/quota.c index 620c691af40e7..d1158c40bb0c6 100644 --- a/fs/ceph/quota.c +++ b/fs/ceph/quota.c @@ -30,6 +30,9 @@ static inline bool ceph_has_realms_with_quotas(struct inode *inode) /* if root is the real CephFS root, we don't have quota realms */ if (root && ceph_ino(root) == CEPH_INO_ROOT) return false; + /* MDS stray dirs have no quota realms */ + if (ceph_vino_is_reserved(ceph_inode(inode)->i_vino)) + return false; /* otherwise, we can't know for sure */ return true; } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 14f951cd5b61b..8cf4323d729cd 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -534,19 +534,23 @@ static inline int ceph_ino_compare(struct inode *inode, void *data) * * These come from src/mds/mdstypes.h in the ceph sources. */ -#define CEPH_MAX_MDS 0x100 -#define CEPH_NUM_STRAY 10 +#define CEPH_MAX_MDS 0x100 +#define CEPH_NUM_STRAY 10 #define CEPH_MDS_INO_MDSDIR_OFFSET (1 * CEPH_MAX_MDS) +#define CEPH_MDS_INO_LOG_OFFSET (2 * CEPH_MAX_MDS) #define CEPH_INO_SYSTEM_BASE ((6*CEPH_MAX_MDS) + (CEPH_MAX_MDS * CEPH_NUM_STRAY)) static inline bool ceph_vino_is_reserved(const struct ceph_vino vino) { - if (vino.ino < CEPH_INO_SYSTEM_BASE && - vino.ino >= CEPH_MDS_INO_MDSDIR_OFFSET) { - WARN_RATELIMIT(1, "Attempt to access reserved inode number 0x%llx", vino.ino); - return true; - } - return false; + if (vino.ino >= CEPH_INO_SYSTEM_BASE || + vino.ino < CEPH_MDS_INO_MDSDIR_OFFSET) + return false; + + /* Don't warn on mdsdirs */ + WARN_RATELIMIT(vino.ino >= CEPH_MDS_INO_LOG_OFFSET, + "Attempt to access reserved inode number 0x%llx", + vino.ino); + return true; } static inline struct inode *ceph_find_inode(struct super_block *sb, -- 2.34.1