From: Karel Zak <kzak@redhat.com>
To: David Howells <dhowells@redhat.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>,
torvalds@linux-foundation.org, viro@zeniv.linux.org.uk,
dray@redhat.com, mszeredi@redhat.com, swhiteho@redhat.com,
jlayton@redhat.com, raven@themaw.net, andres@anarazel.de,
keyrings@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, lennart@poettering.net,
cyphar@cyphar.com
Subject: Re: Upcoming: Notifications, FS notifications and fsinfo()
Date: Wed, 1 Apr 2020 11:04:45 +0200 [thread overview]
Message-ID: <20200401090445.6t73dt7gz36bv4rh@ws.net.home> (raw)
In-Reply-To: <2418286.1585691572@warthog.procyon.org.uk>
On Tue, Mar 31, 2020 at 10:52:52PM +0100, David Howells wrote:
> Christian Brauner <christian.brauner@ubuntu.com> wrote:
>
> > querying all properties of a mount atomically all-at-once,
>
> I don't actually offer that, per se.
>
> Having an atomic all-at-once query for a single mount is actually quite a
> burden on the system. There's potentially a lot of state involved, much of
> which you don't necessarily need.
If all means "all possible attributes" than it is unnecessary, for
example ext4 timestamps or volume uuid/label are rarely necessary.
We usually need together (as consistent set):
source
mountpoint
FS type
FS root (FSINFO_ATTR_MOUNT_PATH)
FS options (FSINFO_ATTR_CONFIGURATION)
VFS attributes
VFS propagation flags
mount ID
parent ID
devno (or maj:min)
Karel
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
next prev parent reply other threads:[~2020-04-01 9:05 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-30 13:58 Upcoming: Notifications, FS notifications and fsinfo() David Howells
2020-03-30 14:31 ` [GIT PULL] General notification queue and key notifications David Howells
2020-03-31 6:51 ` Stephen Rothwell
2020-03-30 14:36 ` [GIT PULL] Mount and superblock notifications David Howells
2020-04-04 21:13 ` Linus Torvalds
2020-04-05 22:52 ` Andres Freund
2020-03-30 14:43 ` [GIT PULL] fsinfo: Filesystem information query David Howells
2020-03-30 20:28 ` Upcoming: Notifications, FS notifications and fsinfo() Miklos Szeredi
2020-03-31 9:21 ` Karel Zak
2020-03-30 21:17 ` Christian Brauner
2020-03-31 5:11 ` Miklos Szeredi
2020-03-31 8:15 ` Christian Brauner
2020-03-31 8:34 ` Miklos Szeredi
2020-03-31 8:34 ` Karel Zak
2020-03-31 8:56 ` Miklos Szeredi
2020-03-31 9:49 ` Karel Zak
2020-03-31 12:25 ` Lennart Poettering
2020-03-31 15:10 ` Miklos Szeredi
2020-03-31 15:24 ` Lennart Poettering
2020-03-31 21:56 ` David Howells
2020-03-31 21:54 ` David Howells
2020-04-01 8:43 ` Karel Zak
2020-03-31 7:22 ` Lennart Poettering
2020-03-31 17:31 ` David Howells
2020-03-31 19:42 ` Miklos Szeredi
2020-03-31 19:47 ` David Howells
2020-03-31 21:14 ` David Howells
2020-03-31 21:23 ` David Howells
2020-03-31 21:52 ` David Howells
2020-04-01 9:04 ` Karel Zak [this message]
2020-04-01 13:34 ` Miklos Szeredi
2020-04-01 13:55 ` David Howells
2020-04-01 13:58 ` David Howells
2020-04-01 15:25 ` Miklos Szeredi
2020-04-03 9:11 ` Karel Zak
2020-04-01 16:01 ` David Howells
2020-04-01 16:30 ` Miklos Szeredi
2020-04-02 15:22 ` David Howells
2020-04-02 15:24 ` Miklos Szeredi
2020-04-02 15:42 ` David Howells
2020-04-02 15:24 ` David Howells
2020-04-01 14:41 ` Lennart Poettering
2020-04-01 15:33 ` Miklos Szeredi
2020-04-01 16:06 ` David Howells
2020-04-01 16:40 ` Miklos Szeredi
2020-04-02 2:52 ` Ian Kent
2020-04-02 13:52 ` Miklos Szeredi
2020-04-02 14:36 ` Lennart Poettering
2020-04-02 15:22 ` Miklos Szeredi
2020-04-02 15:28 ` Lennart Poettering
2020-04-02 15:35 ` Miklos Szeredi
2020-04-02 15:50 ` Lennart Poettering
2020-04-02 17:20 ` Miklos Szeredi
2020-04-03 11:08 ` Lennart Poettering
2020-04-03 11:48 ` Miklos Szeredi
2020-04-03 15:01 ` Lennart Poettering
2020-04-06 9:22 ` Miklos Szeredi
2020-04-06 17:29 ` Lennart Poettering
2020-04-07 2:21 ` Ian Kent
2020-04-07 13:59 ` Miklos Szeredi
2020-04-07 15:53 ` Lennart Poettering
2020-04-07 16:06 ` Miklos Szeredi
2020-04-02 15:51 ` David Howells
2020-04-02 15:56 ` David Howells
2020-04-03 1:44 ` Ian Kent
2020-04-03 11:11 ` Lennart Poettering
2020-04-03 11:38 ` Miklos Szeredi
2020-04-03 12:05 ` Richard Weinberger
2020-04-03 15:12 ` Lennart Poettering
2020-04-03 20:30 ` J. Bruce Fields
2020-04-06 8:35 ` Miklos Szeredi
2020-04-06 16:07 ` J. Bruce Fields
2020-04-06 9:17 ` Karel Zak
2020-04-06 16:34 ` Linus Torvalds
2020-04-06 18:46 ` J. Bruce Fields
2020-04-06 18:48 ` Lennart Poettering
2020-04-08 3:36 ` Linus Torvalds
2020-04-03 15:36 ` David Howells
2020-04-03 15:41 ` Lennart Poettering
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