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 D5876212B37; Wed, 22 Jan 2025 15:03:45 +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=1737558226; cv=none; b=fdtbDsp+9h6jGaGEShOB+E33wNXosa+uSUIQK4p707fFJyaYDZml6eFfQ1U5iNb2YooZi5XlceVRfLx0plKpjBu1jz3pOco+FdncVci+rkAwaBh03+km5C/p0L8Yia6PtVH41C66699E7I4WMXNBYpUGZscc9uNw2OHwbn9I93I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737558226; c=relaxed/simple; bh=mJw6JC6a2nBLtrdMMJVE8kVkFyTBFjr137WrzE7y1Qo=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=lamJBJG9o3ehpIM8e75+dyoJnPCpZFVkCWDlJRGjLYHglK3VHSRETYhZoud7mVDeG2/tbF2XtSIrShgJr751IlmGP4/H/1gsIqtWGQPpCHI58c9kUyiAm86irCpvLwIlUhsUaQ73/kQhNdbC9IuzFmS62SL+ArwEKbmhy6XH4/I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mUDeKcAl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mUDeKcAl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDE62C4CED2; Wed, 22 Jan 2025 15:03:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737558225; bh=mJw6JC6a2nBLtrdMMJVE8kVkFyTBFjr137WrzE7y1Qo=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=mUDeKcAlwvcNjTnWBevT2B/Vu097QsXTQpdk2l7SezPkpc0eG8OJO7YJYiepLjm6T Ex3gHVXRXaWqDweFqrL8EmJm1p5fC5wng48YcntKMT5HNm7/075Uc/t5fdRsBHStX9 +p4mIaFICRKMp4RMP7Hg5Zb7Bacjja6NOFYbY8UdYY+pf6qNL8G4iaJjA6ihpvm6uU oKUrpiC1OHashIfFipRDAUU3qBUSjqEl/iz6ztuFo9DUFj7L6LPLLE2GQsrnnqCr3T jQovwDgqVr6a7kI58kIP3J1diadnw7Qr4z9s9Y2YeIZtZd8DggXzl6QgazbcA2KAee HpI8TDMyuaR7Q== Message-ID: <1593dfc45d62eec78978b4890842c9b7f84c5d31.camel@kernel.org> Subject: Re: [PATCH] sunrpc: add netns inum and srcaddr to debugfs rpc_xprt info From: Jeff Layton To: Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Trond Myklebust , Anna Schumaker , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Cc: linux-nfs@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 22 Jan 2025 10:03:42 -0500 In-Reply-To: <20250122-nfs-6-14-v1-1-164b0b5aa330@kernel.org> References: <20250122-nfs-6-14-v1-1-164b0b5aa330@kernel.org> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV T2h6v8i8YqsATFPwO4nuiTmL6I40ZofxVd+9wdRI4Db8yUNA4ZSP2nqLcLtFjClYRBoJvRWvsv4lm 0OX6MYPtv76hka8lW4mnRmZqqx3UtfHX/hF/zH24Gj7A6sYKYLCU3YrI2Ogiu7/ksKcl7goQjpvtV YrOOI5VGLHge0awt7bhMCTM9KAfPc+xL/ZxAMVWd3NCk5SamL2cE99UWgtvNOIYU8m6EjTLhsj8sn VluJH0/RcxEeFbnSaswVChNSGa7mXJrTR22lRL6ZPjdMgS2Km90haWPRc8Wolcz07Y2se0xpGVLEQ cDEsvv5IMmeMe1/qLZ6NaVkNuL3WOXvxaVT9USW1+/SGipO2IpKJjeDZfehlB/kpfF24+RrK+seQf 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Yy9YbXtWctUz8uvDR7shsQxAhX3qO7DilMtuGo1v97I/Kx4gXQ52syh/w6EBny71CZrOgD6kJwPVV AaM1LRC28muq91WCFhs/nzHozpbzcheyGtMUI2Ao4K6mnY+3zIuXPygZMFr9KXE6fF7HzKxKuZMJO aEZCiDOq0anx6FmOzs5E6Jqdpo/mtI8beK+BE7Va6ni7YrQlnT0i3vaTVMTiCThbqsB20VrbMjlhp f8lfK1XVNbRq/R7GZ9zHESlsa35ha60yd/j3pu5hT2xyy8krV8vGhHvnJ1XRMJBAB/UYb6FyC7S+m QZIQXVeAA+smfTT0tDrisj1U5x6ZB9b3nBg65kc= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2025-01-22 at 09:59 -0500, Jeff Layton wrote: > The output format should provide a value that matches the one in > the /proc//ns/net symlink. This makes it simpler to match the > rpc_xprt and rpc_clnt to a particular container. >=20 > Also, when the xprt defines the get_srcaddr operation, use that to > display the source address as well. >=20 > Signed-off-by: Jeff Layton > --- > This is more client-side code, so I figure this should go in via the NFS > client tree, but if Chuck would rather pick it up, then that's fine too. > --- > net/sunrpc/debugfs.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) >=20 > diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c > index a176d5a0b0ee9a2c0ca1d1ed3131b67b782c3296..3b39493234d7079ff762a862b= dd51725f36472dc 100644 > --- a/net/sunrpc/debugfs.c > +++ b/net/sunrpc/debugfs.c > @@ -179,6 +179,22 @@ xprt_info_show(struct seq_file *f, void *v) > seq_printf(f, "addr: %s\n", xprt->address_strings[RPC_DISPLAY_ADDR]); > seq_printf(f, "port: %s\n", xprt->address_strings[RPC_DISPLAY_PORT]); > seq_printf(f, "state: 0x%lx\n", xprt->state); > + seq_printf(f, "netns: %u\n", xprt->xprt_net->ns.inum); > + > + if (xprt->ops->get_srcaddr) { > + int ret, buflen; > + char buf[INET6_ADDRSTRLEN]; > + > + buflen =3D ARRAY_SIZE(buf); > + ret =3D xprt->ops->get_srcaddr(xprt, buf, buflen); > + if (ret > 0) { > + if (ret < buflen - 1) > + buf[ret] =3D '\0'; > + } else { > + ret =3D sprintf(buf, ""); > + } > + seq_printf(f, "saddr: %s\n", buf); Now that I've sent this, I think we're better off using ret as a length specifier for the %s argument. I'll send a v2 in a bit. > + } > return 0; > } > =20 >=20 > --- > base-commit: ffd294d346d185b70e28b1a28abe367bbfe53c04 > change-id: 20250122-nfs-6-14-7f737deb6356 >=20 > Best regards, --=20 Jeff Layton