From: "Frank Filz" <ffilzlnx@mindspring.com>
To: "'Miklos Szeredi'" <miklos@szeredi.hu>,
"'Christoph Hellwig'" <hch@infradead.org>
Cc: "'NeilBrown'" <neilb@suse.de>,
"'J. Bruce Fields'" <bfields@fieldses.org>,
"'Chuck Lever'" <chuck.lever@oracle.com>,
"'Linux NFS list'" <linux-nfs@vger.kernel.org>,
"'Josef Bacik'" <josef@toxicpanda.com>,
<linux-fsdevel@vger.kernel.org>
Subject: RE: [PATCH v2] BTRFS/NFSD: provide more unique inode number for btrfs export
Date: Thu, 2 Sep 2021 07:16:21 -0700 [thread overview]
Message-ID: <024601d7a005$1b3863c0$51a92b40$@mindspring.com> (raw)
In-Reply-To: <CAJfpegu7rwoFXdtLusyRhrtFgMPxRShesxnBT2Q6iiC_iSGsfg@mail.gmail.com>
> On Thu, 2 Sept 2021 at 09:18, Christoph Hellwig <hch@infradead.org> wrote:
>
> > > Your attitude seems to be that this is a btrfs problem and must be
> > > fixed in btrfs.
> >
> > Yes.
>
> st_ino space issues affect overlayfs as well. The two problems are
> not the same, but do share some characteristics. And this limitation will likely
> come up again in the future.
>
> I suspect the long term solution would involve introducing new userspace API
> (variable length inode numbers) and deprecating st_ino.
> E.g. make stat return an error if the inode number doesn't fit into st_ino and add
> a statx extension to return the full number. But this would be a long process...
But then what do we do where fileid in NFS is only 64 bits?
The solution of giving each subvol a separate fsid is the only real solution to enlarging the NFS fileid space, however that has downsides on the client side.
Frank
next prev parent reply other threads:[~2021-09-02 14:19 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-26 4:28 [PATCH] NFSD: drop support for ancient file-handles NeilBrown
2021-08-26 6:03 ` [PATCH v2] BTRFS/NFSD: provide more unique inode number for btrfs export NeilBrown
2021-08-26 20:19 ` J. Bruce Fields
2021-08-26 22:10 ` NeilBrown
2021-08-27 14:53 ` Frank Filz
2021-08-27 22:57 ` NeilBrown
2021-08-27 23:46 ` Frank Filz
2021-08-27 23:55 ` NeilBrown
2021-08-28 2:21 ` Frank Filz
2021-08-27 18:32 ` J. Bruce Fields
2021-08-27 23:01 ` NeilBrown
2021-08-27 16:20 ` Christoph Hellwig
2021-08-27 23:05 ` NeilBrown
2021-08-28 7:09 ` Christoph Hellwig
2021-08-31 4:59 ` NeilBrown
2021-09-01 7:20 ` Christoph Hellwig
2021-09-01 15:22 ` J. Bruce Fields
2021-09-02 4:14 ` NeilBrown
2021-09-05 16:07 ` J. Bruce Fields
2021-09-06 1:29 ` NeilBrown
2021-09-11 14:12 ` Amir Goldstein
2021-09-13 0:43 ` NeilBrown
2021-09-13 10:04 ` Amir Goldstein
2021-09-13 22:59 ` NeilBrown
2021-09-14 5:45 ` Amir Goldstein
2021-09-20 22:09 ` NeilBrown
2021-09-02 7:11 ` Christoph Hellwig
2021-09-02 4:06 ` NeilBrown
2021-09-02 7:16 ` Christoph Hellwig
2021-09-02 7:53 ` Miklos Szeredi
2021-09-02 14:16 ` Frank Filz [this message]
2021-09-02 23:02 ` NeilBrown
2021-08-26 14:10 ` [PATCH] NFSD: drop support for ancient file-handles Chuck Lever III
2021-08-26 21:38 ` NeilBrown
2021-08-26 14:51 ` J. Bruce Fields
2021-08-26 21:41 ` NeilBrown
2021-08-27 15:15 ` Christoph Hellwig
2021-08-27 23:24 ` NeilBrown
2021-08-31 4:41 ` [PATCH 1/2 v2] NFSD: drop support for ancient filehandles NeilBrown
2021-08-31 4:42 ` [PATCH 2/2] NFSD: simplify struct nfsfh NeilBrown
2021-09-01 7:44 ` Christoph Hellwig
2021-09-01 7:44 ` [PATCH 1/2 v2] NFSD: drop support for ancient filehandles Christoph Hellwig
2021-09-01 14:21 ` Chuck Lever III
2021-09-02 1:14 ` [PATCH 1/3 v3] NFSD: move filehandle format declarations out of "uapi" NeilBrown
2021-09-02 1:15 ` [PATCH 2/3 v3] NFSD: drop support for ancient filehandles NeilBrown
2021-09-02 1:16 ` [PATCH 3/3 v3] NFSD: simplify struct nfsfh NeilBrown
2021-09-02 7:22 ` [PATCH 2/3 v3] NFSD: drop support for ancient filehandles Christoph Hellwig
2021-09-02 7:21 ` [PATCH 1/3 v3] NFSD: move filehandle format declarations out of "uapi" Christoph Hellwig
2021-09-23 21:21 ` Bruce Fields
2021-09-25 4:21 ` NeilBrown
-- strict thread matches above, loose matches on Subject: below --
2021-07-27 22:37 [PATCH/RFC 00/11] expose btrfs subvols in mount table correctly NeilBrown
2021-08-13 1:45 ` [PATCH] VFS/BTRFS/NFSD: provide more unique inode number for btrfs export NeilBrown
2021-08-15 7:39 ` Goffredo Baroncelli
2021-08-15 19:35 ` Roman Mamedov
2021-08-15 22:17 ` NeilBrown
2021-08-23 4:05 ` [PATCH v2] BTRFS/NFSD: " NeilBrown
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