linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Florian Weimer <fweimer@redhat.com>
To: Dave Chinner <david@fromorbit.com>
Cc: Christian Brauner <brauner@kernel.org>,
	Miklos Szeredi <miklos@szeredi.hu>,
	linux-fsdevel@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>,
	Karel Zak <kzak@redhat.com>, Greg KH <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org,
	Linux API <linux-api@vger.kernel.org>,
	linux-man <linux-man@vger.kernel.org>,
	LSM <linux-security-module@vger.kernel.org>,
	Ian Kent <raven@themaw.net>, David Howells <dhowells@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <christian@brauner.io>,
	Amir Goldstein <amir73il@gmail.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>
Subject: Re: [RFC PATCH] getting misc stats/attributes via xattr API
Date: Tue, 10 May 2022 14:45:39 +0200	[thread overview]
Message-ID: <87bkw5d098.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <20220510005533.GA2306852@dread.disaster.area> (Dave Chinner's message of "Tue, 10 May 2022 10:55:33 +1000")

* Dave Chinner:

> IOWs, what Linux really needs is a listxattr2() syscall that works
> the same way that getdents/XFS_IOC_ATTRLIST_BY_HANDLE work. With the
> list function returning value sizes and being able to iterate
> effectively, every problem that listxattr() causes goes away.

getdents has issues of its own because it's unspecified what happens if
the list of entries is modified during iteration.  Few file systems add
another tree just to guarantee stable iteration.

Maybe that's different for xattrs because they are supposed to be small
and can just be snapshotted with a full copy?

Thanks,
Florian


  parent reply	other threads:[~2022-05-10 12:46 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-03 12:23 [RFC PATCH] getting misc stats/attributes via xattr API Miklos Szeredi
2022-05-03 14:39 ` Amir Goldstein
2022-05-03 14:53   ` Greg KH
2022-05-03 15:04     ` Miklos Szeredi
2022-05-03 15:14       ` Amir Goldstein
2022-05-03 16:54       ` Greg KH
2022-05-03 22:43 ` Dave Chinner
2022-05-04  7:18   ` Miklos Szeredi
2022-05-04 14:22     ` Amir Goldstein
2022-05-05 12:30 ` Karel Zak
2022-05-05 13:59   ` Miklos Szeredi
2022-05-05 23:38 ` tytso
2022-05-06  0:06   ` Amir Goldstein
2022-05-07  0:32   ` Dave Chinner
2022-05-09 12:48 ` Christian Brauner
2022-05-09 14:20   ` Amir Goldstein
2022-05-09 15:08     ` Christian Brauner
2022-05-09 17:07       ` Amir Goldstein
2022-05-09 21:42       ` Vivek Goyal
2022-05-10  3:34         ` Ian Kent
2022-05-10  0:55   ` Dave Chinner
2022-05-10 12:40     ` Christian Brauner
2022-05-11  0:42       ` Dave Chinner
2022-05-11  9:16         ` Christian Brauner
2022-05-10 12:45     ` Florian Weimer [this message]
2022-05-10 23:04       ` Dave Chinner
2022-05-10  3:49   ` Miklos Szeredi
2022-05-10  4:27     ` Ian Kent
2022-05-10  8:06       ` Miklos Szeredi
2022-05-10  8:07         ` Miklos Szeredi
2022-05-10 11:53     ` Christian Brauner
2022-05-10 13:15       ` Miklos Szeredi
2022-05-10 13:18         ` Miklos Szeredi
2022-05-10 14:19         ` Christian Brauner
2022-05-10 14:41           ` Miklos Szeredi
2022-05-10 15:30             ` Christian Brauner
2022-05-10 15:47               ` Miklos Szeredi
2022-05-10 15:53                 ` Christian Brauner
2022-05-10 12:35   ` Karel Zak
2022-05-10 23:25     ` Dave Chinner
2022-05-11  8:58       ` Karel Zak
2022-11-14  9:00 ` Abel Wu
2022-11-14 12:35   ` Miklos Szeredi
2022-11-15  3:39     ` Abel Wu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87bkw5d098.fsf@oldenburg.str.redhat.com \
    --to=fweimer@redhat.com \
    --cc=James.Bottomley@hansenpartnership.com \
    --cc=amir73il@gmail.com \
    --cc=brauner@kernel.org \
    --cc=christian@brauner.io \
    --cc=david@fromorbit.com \
    --cc=dhowells@redhat.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=kzak@redhat.com \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-man@vger.kernel.org \
    --cc=linux-security-module@vger.kernel.org \
    --cc=miklos@szeredi.hu \
    --cc=raven@themaw.net \
    --cc=torvalds@linux-foundation.org \
    --cc=tytso@mit.edu \
    --cc=viro@zeniv.linux.org.uk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).