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[100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id F0D7940A3C; Thu, 15 Jan 2026 19:46:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 743B5C19422; Thu, 15 Jan 2026 19:46:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768506379; bh=zf+CKbw7Jg7J3KLn0ua/y1AEFbLaXMmvBV1epkeQLzg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=YI28u20N4i7Anj7Hhh7UQ8mPOHdeb0+/QSdNzrMUk73qU0DFgoKZ2EsyTb38gCmNK uBa1oEJjKpBugf2Tf0vMg7DyMpfaD3LKkzo11ZHXJdtEE1d4GTIcMrxMWFK3xHe2hG VaW+vNKuldfMntIEr+bbZIRnRaZEB8HENLwUal/k/oXqwGKq4Hp42KRg71vLXn/wpO s+uJcakTDvsWz7At/5xZKYd8hpShHS6Z/EFls8HRSrzTJ3NtR/fL77iz5B7NUbDdqd M31T4ACAvix/ELSAKeup/qc1XCYZavJQkaUTO92wBY28dCTZU86Q8f7LvFADiRRTDa knx6nADEfXyAQ== Message-ID: <0d838a5cf271f98ce7158998dd6b1d0a86ea7eb7.camel@kernel.org> Subject: Re: [PATCH 26/29] fuse: add EXPORT_OP_STABLE_HANDLES flag to export operations From: Jeff Layton To: Amir Goldstein Cc: Christian Brauner , Alexander Viro , Chuck Lever , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Hugh Dickins , Baolin Wang , Andrew Morton , Theodore Ts'o , Andreas Dilger , Jan Kara , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Carlos Maiolino , Ilya Dryomov , Alex Markuze , Viacheslav Dubeyko , Chris Mason , David Sterba , Luis de Bethencourt , Salah Triki , Phillip Lougher , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Bharath SM , Miklos Szeredi , Mike Marshall , Martin Brandenburg , Mark Fasheh , Joel Becker , Joseph Qi , Konstantin Komarov , Ryusuke Konishi , Trond Myklebust , Anna Schumaker , Dave Kleikamp , David Woodhouse , Richard Weinberger , Jan Kara , Andreas Gruenbacher , OGAWA Hirofumi , Jaegeuk Kim , Christoph Hellwig , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-ext4@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-xfs@vger.kernel.org, ceph-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-unionfs@vger.kernel.org, devel@lists.orangefs.org, ocfs2-devel@lists.linux.dev, ntfs3@lists.linux.dev, linux-nilfs@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-mtd@lists.infradead.org, gfs2@lists.linux.dev, linux-f2fs-devel@lists.sourceforge.net Date: Thu, 15 Jan 2026 14:46:12 -0500 In-Reply-To: References: <20260115-exportfs-nfsd-v1-0-8e80160e3c0c@kernel.org> <20260115-exportfs-nfsd-v1-26-8e80160e3c0c@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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 pOa1SwDH OhPN2T2z5G3xjh7fboUIyBSKGGhKvvlpb4wO5kGeO64qkehKfOqfn6djz55M7MisW6E9f44XdkrRPuhLB4JQLis75DCxpdJTzNdTOmTZ+v9MOIwdP8tJHqFS5eH/s+IlFnHmyOnV1OjDx3DhD2j0wwKfZOQIwdL58MQWHzTnVPt7okZY5RydTwurCM9Po5z1rv3Erb+qqh01tqvTSU6rthni1JDbXyPdKr4PistDB43Tooap5R2DoGtuM9EoWavH86hRBo/uMZliReAfFFwwg5dEK7T/RP2KBf5mPmV9gpS5ZJLtcDlyRmSDPpkWiV0QnJ57LPrB4SbdP7jif9PJj1KejNtFsk0Zh1FJ1ezWkj3Verqc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 2026-01-15 at 19:54 +0100, Amir Goldstein wrote: > On Thu, Jan 15, 2026 at 6:50=E2=80=AFPM Jeff Layton = wrote: > >=20 > > Add the EXPORT_OP_STABLE_HANDLES flag to fuse export operations to indi= cate > > that this filesystem can be exported via NFS. > >=20 > > Signed-off-by: Jeff Layton > > --- > > fs/fuse/inode.c | 2 ++ > > 1 file changed, 2 insertions(+) > >=20 > > diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c > > index 819e50d666224a6201cfc7f450e0bd37bfe32810..1652a98db639fd75e8201b6= 81a29c68b4eab093c 100644 > > --- a/fs/fuse/inode.c > > +++ b/fs/fuse/inode.c > > @@ -1208,6 +1208,7 @@ static struct dentry *fuse_get_parent(struct dent= ry *child) > > /* only for fid encoding; no support for file handle */ > > static const struct export_operations fuse_export_fid_operations =3D { > > .encode_fh =3D fuse_encode_fh, > > + .flags =3D EXPORT_OP_STABLE_HANDLES, > > }; >=20 > These are used when the server declares FUSE_NO_EXPORT_SUPPORT > so do not opt in for NFS export. >=20 > The sad thing w.r.t FUSE is that in most likelihood server does not provi= de > persistent handles also when it does not declare FUSE_NO_EXPORT_SUPPORT > but we are stuck with that. >=20 > Thanks, > Amir. Thanks, I removed that flag in the patch in my tree. --=20 Jeff Layton