From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AD95D1E0DBB; Wed, 6 Nov 2024 12:51:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730897491; cv=none; b=V30RmoTvmam6v6LAypzhw26WMQ5+9hjhbUbbym551Q/QhAXlT2ZWbKMwga2eVV04rNv0qgSd3cQAxMkvNOIQuDtm+JhQlCcbaLA9yjWuPQ8Oxw13ucvxzjrIGqdASxdUmopMb/AOJXM5Y9/1GpjP85ieb9lbBEIjyeCR3JsRklM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730897491; c=relaxed/simple; bh=QKm21WQXHqO0CXLIEA7HGIHfkItc5A43YLzge1O51+A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=L8oDub3XEmWJMo/nOxtwPE8yYaoupnoc/4W32L/ePiCxgWursaWvmOdILKdDoppVGZRQL8H6n1loJhJkC8LmAjpGSPoBFsZ4nx/PZ/Wu25vNAj1RhNTQiz0Sp/+H4dUicBOIcPZfOaw9oannXxJqgDtw1GSoGveVplPZrK/PrAk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dDfIitaT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="dDfIitaT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08BE0C4CECD; Wed, 6 Nov 2024 12:51:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1730897491; bh=QKm21WQXHqO0CXLIEA7HGIHfkItc5A43YLzge1O51+A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dDfIitaT3oQSUTn4rIzzpPiaciDCH+ksMIGD6EbvQLl2ZimVnXDRifqGtDZrbCYpp 6c9V5/MoaGkXssRAfqmL6DFH7k5BHQsoUEMHSZ4TTLzdA4IuBqO7/1Fr5i7KDOcPQD 320OGI6OeKCrTRihu8c+VSs+miwH3tTV2LUu9Ggo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dai Ngo , Trond Myklebust , Anna Schumaker , Sasha Levin Subject: [PATCH 6.6 070/151] NFS: remove revoked delegation from servers delegation list Date: Wed, 6 Nov 2024 13:04:18 +0100 Message-ID: <20241106120310.769206064@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241106120308.841299741@linuxfoundation.org> References: <20241106120308.841299741@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dai Ngo [ Upstream commit 7ef60108069b7e3cc66432304e1dd197d5c0a9b5 ] After the delegation is returned to the NFS server remove it from the server's delegations list to reduce the time it takes to scan this list. Network trace captured while running the below script shows the time taken to service the CB_RECALL increases gradually due to the overhead of traversing the delegation list in nfs_delegation_find_inode_server. The NFS server in this test is a Solaris server which issues CB_RECALL when receiving the all-zero stateid in the SETATTR. mount=/mnt/data for i in $(seq 1 20) do echo $i mkdir $mount/testtarfile$i time tar -C $mount/testtarfile$i -xf 5000_files.tar done Signed-off-by: Dai Ngo Reviewed-by: Trond Myklebust Signed-off-by: Anna Schumaker Signed-off-by: Sasha Levin --- fs/nfs/delegation.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index a2034511b6314..4bf2526a3a189 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -981,6 +981,11 @@ void nfs_delegation_mark_returned(struct inode *inode, } nfs_mark_delegation_revoked(delegation); + clear_bit(NFS_DELEGATION_RETURNING, &delegation->flags); + spin_unlock(&delegation->lock); + if (nfs_detach_delegation(NFS_I(inode), delegation, NFS_SERVER(inode))) + nfs_put_delegation(delegation); + goto out_rcu_unlock; out_clear_returning: clear_bit(NFS_DELEGATION_RETURNING, &delegation->flags); -- 2.43.0