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 DCFE38BE5 for ; Mon, 19 Jun 2023 10:49:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6403BC433C0; Mon, 19 Jun 2023 10:49:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687171781; bh=O6RYYlVwXXYj/HuWmYtTzIP5NXx3z0ZGT25etE+QaYg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=guG7RVU1egkStMEMTqX9aaIlX5TD8fSzre780rzyr8iH/wrJDPyVawJpBeK+cKs3G L40iMMsrP97l/u+DPtscx3th+2zrUr0pRi+2DRWtHmwy3tLETsX0ATVkZSHpgwVANo qkReeV0v/jF3Ql25NdiNijJ/EqS8mubRC6aG99xU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Marc Dionne , David Howells , linux-afs@lists.infradead.org, Linus Torvalds , Sasha Levin Subject: [PATCH 6.1 154/166] afs: Fix vlserver probe RTT handling Date: Mon, 19 Jun 2023 12:30:31 +0200 Message-ID: <20230619102202.159959457@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102154.568541872@linuxfoundation.org> References: <20230619102154.568541872@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: David Howells [ Upstream commit ba00b190670809c1a89326d80de96d714f6004f2 ] In the same spirit as commit ca57f02295f1 ("afs: Fix fileserver probe RTT handling"), don't rule out using a vlserver just because there haven't been enough packets yet to calculate a real rtt. Always set the server's probe rtt from the estimate provided by rxrpc_kernel_get_srtt, which is capped at 1 second. This could lead to EDESTADDRREQ errors when accessing a cell for the first time, even though the vl servers are known and have responded to a probe. Fixes: 1d4adfaf6574 ("rxrpc: Make rxrpc_kernel_get_srtt() indicate validity") Signed-off-by: Marc Dionne Signed-off-by: David Howells cc: linux-afs@lists.infradead.org Link: http://lists.infradead.org/pipermail/linux-afs/2023-June/006746.html Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- fs/afs/vl_probe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/afs/vl_probe.c b/fs/afs/vl_probe.c index d1c7068b4346f..58452b86e6727 100644 --- a/fs/afs/vl_probe.c +++ b/fs/afs/vl_probe.c @@ -115,8 +115,8 @@ void afs_vlserver_probe_result(struct afs_call *call) } } - if (rxrpc_kernel_get_srtt(call->net->socket, call->rxcall, &rtt_us) && - rtt_us < server->probe.rtt) { + rxrpc_kernel_get_srtt(call->net->socket, call->rxcall, &rtt_us); + if (rtt_us < server->probe.rtt) { server->probe.rtt = rtt_us; server->rtt = rtt_us; alist->preferred = index; -- 2.39.2