From: David Howells <dhowells@redhat.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: dhowells@redhat.com, Al Viro <viro@zeniv.linux.org.uk>,
Ian Kent <raven@themaw.net>,
Linux API <linux-api@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
Miklos Szeredi <mszeredi@redhat.com>
Subject: Re: [PATCH 01/25] vfs: syscall: Add fsinfo() to query filesystem information [ver #13]
Date: Tue, 18 Jun 2019 23:24:25 +0100 [thread overview]
Message-ID: <23583.1560896665@warthog.procyon.org.uk> (raw)
In-Reply-To: <CAJfpegtkpNNOOWQ3TnLPGSm=bwL2otQp1--GjNNFiXO7imMxEQ@mail.gmail.com>
Miklos Szeredi <miklos@szeredi.hu> wrote:
> Please don't resurrect MS_ flags. They are from the old API and
> shouldn't be used in the new one. Some of them (e.g. MS_POSIXACL,
> MS_I_VERSION) are actually internal flags despite being exported on
> the old API.
That makes it harder to emulate statfs() using this interface, but ok.
I wonder if I should split the standard parameters (rw/ro, posixacl, dirsync,
sync, lazytime, mand) out of FSINFO_ATTR_PARAMETERS and stick them in their
own attribute, say FSINFO_ATTR_STD_PARAMETERS. That would make it easier for
a filesystem to only overload them if it wants to.
> And there's SB_SILENT which is simply not a superblock flag and we might be
> better getting rid of it entirely.
Yeah. It's a parse-time flag.
> The proper way to query mount options should be analogous to the way
> they are set on the new API: list of {key, type, value, aux} tuples.
It's not quite that simple: "aux" might be a datum that you can't recover or
is meaningless to another process (an fd, for example).
David
next prev parent reply other threads:[~2019-06-18 22:24 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-28 15:11 [PATCH 00/25] VFS: Introduce filesystem information query syscall [ver #13] David Howells
2019-05-28 15:11 ` [PATCH 01/25] vfs: syscall: Add fsinfo() to query filesystem information " David Howells
2019-05-29 7:42 ` Miklos Szeredi
2019-06-18 22:24 ` David Howells [this message]
2019-05-28 15:11 ` [PATCH 02/25] vfs: Allow fsinfo() to query what's in an fs_context " David Howells
2019-06-21 9:47 ` Christian Brauner
2019-06-21 13:12 ` David Howells
2019-06-21 13:16 ` Christian Brauner
2019-06-21 13:28 ` Christian Brauner
2019-06-21 14:50 ` David Howells
2019-05-28 15:11 ` [PATCH 03/25] vfs: Allow fsinfo() to be used to query an fs parameter description " David Howells
2019-05-28 15:11 ` [PATCH 04/25] vfs: Implement parameter value retrieval with fsinfo() " David Howells
2019-05-29 8:08 ` Miklos Szeredi
2019-06-18 22:34 ` David Howells
2019-06-19 6:33 ` Miklos Szeredi
2019-05-28 15:11 ` [PATCH 05/25] fsinfo: Implement retrieval of LSM parameters " David Howells
2019-05-28 15:11 ` [PATCH 06/25] vfs: Introduce a non-repeating system-unique superblock ID " David Howells
2019-05-28 15:12 ` [PATCH 07/25] vfs: Allow fsinfo() to look up a mount object by " David Howells
2019-05-28 15:12 ` [PATCH 08/25] vfs: Add mount notification count " David Howells
2019-05-28 15:12 ` [PATCH 09/25] vfs: Allow mount information to be queried by fsinfo() " David Howells
2019-06-01 16:08 ` Joel Fernandes
2019-06-05 12:21 ` Alan Jenkins
2019-06-18 14:00 ` David Howells
2019-05-28 15:12 ` [PATCH 10/25] vfs: fsinfo sample: Mount listing program " David Howells
2019-06-05 12:22 ` Alan Jenkins
2019-05-28 15:12 ` [PATCH 11/25] hugetlbfs: Add support for fsinfo() " David Howells
2019-05-28 15:12 ` [PATCH 12/25] kernfs, cgroup: Add fsinfo support " David Howells
2019-05-28 15:12 ` [PATCH 13/25] fsinfo: Support SELinux superblock parameter retrieval " David Howells
2019-05-28 15:13 ` [PATCH 14/25] fsinfo: Support Smack " David Howells
2019-05-28 15:13 ` [PATCH 15/25] afs: Support fsinfo() " David Howells
2019-05-28 15:13 ` [PATCH 16/25] nfs: " David Howells
2019-05-28 15:13 ` [PATCH 17/25] fsinfo: autofs - add sb operation " David Howells
2019-05-28 15:13 ` [PATCH 18/25] fsinfo: shmem - add tmpfs " David Howells
2019-05-28 15:13 ` [PATCH 19/25] fsinfo: proc - add " David Howells
2019-05-28 15:13 ` [PATCH 20/25] fsinfo: devpts " David Howells
2019-05-28 15:14 ` [PATCH 21/25] fsinfo: pstore " David Howells
2019-05-28 15:14 ` [PATCH 22/25] fsinfo: debugfs " David Howells
2019-05-28 15:14 ` [PATCH 23/25] fsinfo: bpf " David Howells
2019-05-28 15:14 ` [PATCH 24/25] fsinfo: ufs " David Howells
2019-05-28 15:14 ` [PATCH 25/25] fsinfo: Add API documentation " David Howells
2019-06-05 12:21 ` Alan Jenkins
2019-06-18 14:01 ` David Howells
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