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From: Karel Zak <kzak@redhat.com>
To: David Howells <dhowells@redhat.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	dray@redhat.com, Miklos Szeredi <mszeredi@redhat.com>,
	Steven Whitehouse <swhiteho@redhat.com>,
	Jeff Layton <jlayton@redhat.com>, Ian Kent <raven@themaw.net>,
	andres@anarazel.de, keyrings@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Lennart Poettering <lennart@poettering.net>,
	Aleksa Sarai <cyphar@cyphar.com>
Subject: Re: Upcoming: Notifications, FS notifications and fsinfo()
Date: Wed, 01 Apr 2020 08:43:46 +0000	[thread overview]
Message-ID: <20200401084346.kety7m2dwo7okeuk@ws.net.home> (raw)
In-Reply-To: <2418416.1585691663@warthog.procyon.org.uk>

On Tue, Mar 31, 2020 at 10:54:23PM +0100, David Howells wrote:
> Karel Zak <kzak@redhat.com> wrote:
> 
> > - improve fsinfo() to provide set (list) of the attributes by one call
> 
> That would be my preferred way.  I wouldn't want to let the user pin copies of
> state, and I wouldn't want to make open(O_PATH) do it automatically.

You can create cow object on first fsinfo() call, ideally add some
flags to control this behavior -- but you're right, this way is
complicated to implement and possibly dangerous.

I guess return some vector of attributes in one fsinfo() will be good
enough.

    Karel

-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com

  reply	other threads:[~2020-04-01  8:43 UTC|newest]

Thread overview: 97+ 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
2020-06-02 15:55   ` David Howells
2020-06-03  2:15     ` Ian Kent
2020-06-08  0:49       ` Ian Kent
2020-06-10  9:56     ` Christian Brauner
2020-06-10 11:12     ` Karel Zak
2020-06-12 21:32       ` Linus Torvalds
2020-06-12 22:01       ` Linus Torvalds
2020-06-13 13:04       ` David Howells
2020-06-13 16:47         ` Linus Torvalds
2020-06-13 17:03           ` Linus Torvalds
2020-06-13 19:22         ` Miklos Szeredi
2020-06-13 13:24       ` David Howells
2020-06-13 18:00     ` pr-tracker-bot
2020-06-17  1:15     ` Williams, Dan J
2020-06-23 23:38       ` Dan Williams
2020-06-24  0:55       ` David Howells
2020-06-24  1:03         ` Dan Williams
2020-06-24  1:17         ` David Howells
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 [this message]
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
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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