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 8ECD72DAFC1; Mon, 1 Dec 2025 15:52:44 +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=1764604364; cv=none; b=Ct2d0zIeQfjmE4hV0yvEu3AGb+0IuWpIeNrTRr0EjtFXfF+oQosvDhZsKKgc2b3Va4nseVR9HuzLQEXH8w4oHVrrV3Dtho43aR0J09V9LnbqyTcaCBEmazlW+mSuzadvnIXdk8Y2HT4skLwcFUrTQAwer7apA0Dcu4J4HH79jeI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764604364; c=relaxed/simple; bh=8F/Gk7ibVvaD0zda6FNjcx+JSeMPsD/gxO7GBm/GnSM=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=qzeLBGcGhFbDmvQA0dZEpaueT+Y9WzDMtQIwXSRvrssgQEd9/Ow5DrMG0c7WhTZ7FamxMSI9FVunb7h76QCSEiFQv8soK/rxtDfyB/EXFaOtEltF4xFAfhsrtj2BEBIvVSu4eqIv4BR9gIAatUCQwJPh4SD3VVC99U3gAm90nlk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dCoWykhG; 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="dCoWykhG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3EF2C4CEF1; Mon, 1 Dec 2025 15:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764604364; bh=8F/Gk7ibVvaD0zda6FNjcx+JSeMPsD/gxO7GBm/GnSM=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=dCoWykhGj8+RQu896yH2KwBQy2X4HdAui6b9Jm4nZB9YNzmhwj9xNA8+IeJ0GMxTN Vx52KhHAZiH0f5u9QrXAn+n+aETpjAUHWzRAuVsaqNx6AMa7O7orGnhCRDSs7qm1dS oT/S6sNsPNCaySxGEpjvA/yHOYXBczzdrQrDb+qszwW5hX0S9+WuUPqEC5RNyEdgRD 78Blci/0kJStIp6HGg6ouVTbHsYVd/akbwYjuUMyQTZdvjPA9k+YLZAD3Mwn3QJU4b +FIsGkljkDRbHpT6IJIMp7MhMKX7J1vQI1MFFObo4LzISY0y1AbF/Bz1ChgVoqtmrG /lq659wavHIsw== Message-ID: <803c22e7855b699a74cf65c0ba9a0e9ad5b41257.camel@kernel.org> Subject: Re: [PATCH 0/2] filelock: fix conflict detection with userland file delegations From: Jeff Layton To: Chuck Lever , Alexander Viro , Christian Brauner , Jan Kara , Chuck Lever , Alexander Aring , "Matthew Wilcox (Oracle)" , Jonathan Corbet , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-nfs@vger.kernel.org Date: Mon, 01 Dec 2025 10:52:41 -0500 In-Reply-To: <78e50574-56f3-42e6-a471-c2dba4c7f1ad@app.fastmail.com> References: <20251201-dir-deleg-ro-v1-0-2e32cf2df9b7@kernel.org> <78e50574-56f3-42e6-a471-c2dba4c7f1ad@app.fastmail.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; 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text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Mon, 2025-12-01 at 10:19 -0500, Chuck Lever wrote: >=20 > On Mon, Dec 1, 2025, at 10:08 AM, Jeff Layton wrote: > > This patchset fixes the way that conflicts are detected when userland > > requests file delegations. The problem is due to a hack that was added > > long ago which worked up until userland could request a file delegation= . > >=20 > > This fixes the bug and makes things a bit less hacky. Please consider > > for v6.19. >=20 > I would like a little more time to review this carefully, especially > in light of similar work Dai has already posted in this area. If by > "v6.19" you mean "not before v6.19-rcN where N > 3", then that WFM. >=20 Ok. Do you have a specific concern? FWIW, I did mention to Dai that the first patch in this series would make it more palatable to handle his new lm_breaker_timedout operation in lease_dispose_list(). By v6.19, I mean before v6.19 ships. This bug needs to be fixed before we release a kernel that provides the new F_SETDELEG interface. >=20 > > Signed-off-by: Jeff Layton > > --- > > Jeff Layton (2): > > filelock: add lease_dispose_list() helper > > filelock: allow lease_managers to dictate what qualifies as a con= flict > >=20 > > Documentation/filesystems/locking.rst | 1 + > > fs/locks.c | 119 +++++++++++++++++---------= -------- > > fs/nfsd/nfs4layouts.c | 11 +++- > > fs/nfsd/nfs4state.c | 7 ++ > > include/linux/filelock.h | 1 + > > 5 files changed, 79 insertions(+), 60 deletions(-) > > --- > > base-commit: 76c63ff12e067e1ff77b19a83c24774899ed01fc > > change-id: 20251201-dir-deleg-ro-41a16bc22838 > >=20 > > Best regards, > > --=20 > > Jeff Layton --=20 Jeff Layton