From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 ECF7F282F3C; Wed, 17 Jun 2026 11:04:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781694250; cv=none; b=NvH9N9ah5+K5WBYNXfBQw9/Ig/vPmxdVX4BuRLYombFbRHkmJ6s2eNjccX6I+SZlUn3SE/8KBfDB2Ql0nom0lbGGEcbgjlb59+ilc1FmYb1r1rRxnv1579J1SN64PHrjYYTM3n2Ua809PiEOgpFE/zVcBVf36g8CbYfi7r6Sfi4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781694250; c=relaxed/simple; bh=1qPl7fB+5kKHSZ6eNvMSIUhRN+y/tQ8wZ5lMIKbG8M8=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=EcsGFZQ2tNjSNfWb2Hf9iCvKpkVXp7+GC5zDvf+Rl/dZZmyI7D3vSoUJOrC+vCdaTt9LENjWKSOPHXB+AAuQB2twlRmL1HLb8wvVpWioyVHNcyhUvPJzmBEnFKf6QWoypsGBmTLzBQb2DZCbKQompL4rYAmHsowukC6XY4o+9x8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZADKwP/r; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZADKwP/r" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A42B81F000E9; Wed, 17 Jun 2026 11:04:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781694249; bh=djzMxB41GeKyGtcnLvVt9lwkWvpXTUh2o7i5tuIwok0=; h=Subject:From:To:Cc:Date:In-Reply-To:References; b=ZADKwP/rlJsuy6RyQkxcEGMXXh335V6EBzLp4liExdTUFlH2avehwSbCrYU+2sPHB Zyu+6DL2Mtn5IEmGn3bzb0sINInH16qi6qMW4ItxFiKkIhCyVPg4T67GTRq9faH2pO 0zLrB+WlCMCbQsVY+ditkBXvIef19LvJfXufDqvfp6AtH3cxiqWyPDF27kGRIjKxDQ RplfhXmbT51NiNMDcCZUyyd2j84qmksTXtCwLMyXfj3nQOEjDT9IfseCVVWz2NCPPH 6U/vTYegJXCKTZgO1ld3lXUOC2tBFpjmhZjdngE9STCK1Zk63NewVt+DnJJAHwX/bD J1U1gZvAvZ6rg== Message-ID: Subject: Re: [PATCH v4 1/4] sunrpc: add per-netns per-procedure call counts to svc_stat From: Jeff Layton To: Chuck Lever , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey Cc: Trond Myklebust , Anna Schumaker , Steve Dickson , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 17 Jun 2026 07:04:06 -0400 In-Reply-To: References: <20260616-exportd-netlink-v4-0-03505aee3883@kernel.org> <20260616-exportd-netlink-v4-1-03505aee3883@kernel.org> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV T2h6v8i8YqsATFPwO4nuiTmL6I40ZofxVd+9wdRI4Db8yUNA4ZSP2nqLcLtFjClYRBoJvRWvsv4lm 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Jun 16, 2026, at 8:45 AM, Jeff Layton wrote: > > The existing per-procedure call counts live in global > > svc_version->vs_count[] arrays which are not network-namespace-aware. > > Add per-netns equivalents in struct svc_stat so the upcoming netlink > > stats interface can return namespace-scoped statistics. > >=20 > > Add a vs_count pointer array to struct svc_stat, along with > > svc_stat_alloc_counts() and svc_stat_free_counts() helpers to manage > > per-version percpu call count arrays. >=20 > This patch appears to break the build for an NFSv3-only server > configured with CONFIG_PROC_FS=3Dn. >=20 > svc_stat_alloc_counts() and svc_stat_free_counts() are defined in > net/sunrpc/stats.c, which the Makefile builds only under PROC_FS: >=20 > sunrpc-$(CONFIG_PROC_FS) +=3D stats.o >=20 > nfsd_net_init()/nfsd_net_exit() call both helpers unconditionally, > and the declarations in sit outside the > #ifdef CONFIG_PROC_FS block with no !PROC_FS stubs. CONFIG_NFSD does > not depend on PROC_FS -- only NFSD_V4 does -- so NFSD=3Dy with > NFSD_V2/V3 and PROC_FS=3Dn is a valid Kconfig combination. The result > is an undefined reference to svc_stat_alloc_counts at vmlinux link > (NFSD=3Dy), or a modpost failure for NFSD=3Dm since both symbols are > EXPORT_SYMBOL_GPL. >=20 > net/sunrpc/svc.c is always built, and might be a more natural home > for the new functions. Thanks. Looks pretty simple to fix. I'll plan to send a v5. --=20 Jeff Layton