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From: Florian Weimer <fweimer@redhat.com>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: David Howells <dhowells@redhat.com>,
	linux-api@vger.kernel.org, viro@zeniv.linux.org.uk,
	metze@samba.org, torvalds@linux-foundation.org,
	cyphar@cyphar.com, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: Have RESOLVE_* flags superseded AT_* flags for new syscalls?
Date: Mon, 02 Mar 2020 13:42:50 +0100	[thread overview]
Message-ID: <87y2sjlygl.fsf@oldenburg2.str.redhat.com> (raw)
In-Reply-To: <20200302123510.bm3a2zssohwvkaa4@wittgenstein> (Christian Brauner's message of "Mon, 2 Mar 2020 13:35:10 +0100")

* Christian Brauner:

> One difference to openat() is that openat2() doesn't silently ignore
> unknown flags. But I'm not sure that would matter for iplementing
> openat() via openat2() since there are no flags that openat() knows about
> that openat2() doesn't know about afaict. So the only risks would be
> programs that accidently have a bit set that isn't used yet.

Will there be any new flags for openat in the future?  If not, we can
just use a constant mask in an openat2-based implementation of openat.

Thanks,
Florian


  reply	other threads:[~2020-03-02 12:43 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-28 14:53 Have RESOLVE_* flags superseded AT_* flags for new syscalls? David Howells
2020-02-28 15:24 ` Christian Brauner
2020-02-29 15:26   ` Aleksa Sarai
2020-02-29 15:54     ` Aleksa Sarai
2020-03-01 16:46       ` Christian Brauner
2020-03-01 16:38     ` Christian Brauner
2020-03-02 11:30   ` Florian Weimer
2020-03-02 11:52     ` Christian Brauner
2020-03-02 12:05       ` Christian Brauner
2020-03-02 15:10         ` Christian Brauner
2020-03-02 15:36           ` Aleksa Sarai
2020-03-02 16:31             ` Christian Brauner
2020-03-02 12:09       ` Florian Weimer
2020-03-02 12:19         ` Christian Brauner
2020-03-02 12:35           ` Christian Brauner
2020-03-02 12:42             ` Florian Weimer [this message]
2020-03-02 12:55               ` Christian Brauner
     [not found]               ` <20200305141154.e246swv62rnctite@yavin>
2020-03-05 15:23                 ` Christian Brauner
2020-03-05 14:33             ` David Howells
2020-03-05 14:38               ` Florian Weimer
2020-03-05 14:43               ` David Howells
2020-03-02 14:27     ` David Howells
2020-03-02 14:35       ` Christian Brauner
2020-03-02 14:50       ` David Howells
2020-03-02 15:05         ` Christian Brauner
2020-03-02 15:24           ` Aleksa Sarai
2020-03-02 16:37           ` David Howells
2020-03-06 14:48             ` David Howells
2020-03-02 15:10         ` Aleksa Sarai
2020-03-02 15:23         ` David Howells
2020-03-02 14:30   ` David Howells
2020-03-02 15:04     ` Aleksa Sarai

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