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 D1EFC487A7 for ; Fri, 1 Nov 2024 13:06:43 +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=1730466404; cv=none; b=QOptCBjIHQ0G37sypPKm+2VWU54q+ER2exBV794ExPfvyzmljdo7/U0fwp0L2t6P5OjQ9VbqI+iwnVqzkOIMwPDw/W/zkumnmj+oCdCAV0OxJoZ4bybhRFl3bwMDQLYcbRKtseam6V1qql4xYsA7sm+ADoy/7j20CihTkjL9/Do= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730466404; c=relaxed/simple; bh=bb27bDPw1TsA+n/inrAlZw2/YD/584A6DvqzjAWOJCs=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=EwQwFJIpGbzhQuZCbdiDv0ktUkeKjifzmqqU+o7DC4s6hdTUD5yLSzHt6ERzwmzoekidXjApxJ8ec/WhNlbHyKEwKVxvlezpeozlDn/oCWgeXX8GjsBRsvhiDt8kCJnWG9JAl38q4rD5R5h2Lin7QSRjSeFiiRNXnqQElfI9iEA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nLpLAZa0; 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="nLpLAZa0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6565C4CECD; Fri, 1 Nov 2024 13:06:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730466403; bh=bb27bDPw1TsA+n/inrAlZw2/YD/584A6DvqzjAWOJCs=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=nLpLAZa0liU7aJ+v3IYwSFpsOeS4QLcQWbC7YgAKSnFeOvAvmsXrbweZ2FubNCCKi Z5OLLLPzubM5JUb3kSqlXzeIFAEKzeQscx7GfgYsobzZJKs8ktQADI+NBLyKRmNTK1 GwbowH0W++sL1/gE8lLmaRGAUdnv+DDdLHowftio4K50kOva8Qpty9sIzE3bXCh62n h1q0frEbxq+XTVl8WHRNaGesG4VgwTBmIeZNfKOsFZYLOimbkvDELQfePwXylv3AR9 TRj1x5omNfIiqmnndav8cqkoQH38G/LYrkcgdR6vmJgrdlEGTsGc12ELeIk5ytZPeN lswHlW4ixrj9w== Message-ID: <490ea18ca7022a2716ba76b689ce7114a84051fb.camel@kernel.org> Subject: Re: [PATCH v3 0/8] async COPY fixes for NFSD From: Jeff Layton To: cel@kernel.org, Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey Cc: linux-nfs@vger.kernel.org, Chuck Lever Date: Fri, 01 Nov 2024 09:06:41 -0400 In-Reply-To: <20241031134000.53396-10-cel@kernel.org> References: <20241031134000.53396-10-cel@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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Extend the life of async COPY state IDs so that clients get > actionable OFFLOAD_STATUS results after COPY operations complete. > This lifetime extension comports with RFC 7862, although does not > bring NFSD fully into compliance. >=20 > There are a number of other small fixes to improve observability, > behavior during temporary resource shortages, and behavior during > client shutdown. >=20 > Async COPY remains disabled in NFSD until the Linux client has grown > support for OFFLOAD_STATUS. Patches for that are available in the > "fix-async-copy" branch of: >=20 > https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git >=20 > Changes since previous versions: > - Loads of testing, improvements, and re-organization >=20 > Chuck Lever (8): > NFSD: Add a tracepoint to record canceled async COPY operations > NFSD: Fix nfsd4_shutdown_copy() > NFSD: Free async copy information in nfsd4_cb_offload_release() > NFSD: Handle an NFS4ERR_DELAY response to CB_OFFLOAD > NFSD: Block DESTROY_CLIENTID only when there are ongoing async COPY > operations > NFSD: Add a laundromat reaper for async copy state > NFSD: Add nfsd4_copy time-to-live > NFSD: Send CB_OFFLOAD on graceful shutdown >=20 > fs/nfsd/nfs4proc.c | 101 ++++++++++++++++++++++++++++++++++++++++---- > fs/nfsd/nfs4state.c | 3 +- > fs/nfsd/state.h | 17 ++++++++ > fs/nfsd/trace.h | 11 ++++- > fs/nfsd/xdr4.h | 6 +++ > 5 files changed, 128 insertions(+), 10 deletions(-) >=20 This looks fine to me overall. Most of my comments were pretty minor and can be addressed after the fact. Reviewed-by: Jeff Layton