lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <112162.1700146930@warthog.procyon.org.uk>
Date:   Thu, 16 Nov 2023 15:02:10 +0000
From:   David Howells <dhowells@...hat.com>
To:     Oleg Nesterov <oleg@...hat.com>
Cc:     dhowells@...hat.com, Marc Dionne <marc.dionne@...istor.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Chuck Lever <chuck.lever@...cle.com>,
        linux-afs@...ts.infradead.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rxrpc_find_service_conn_rcu: use read_seqbegin() rather than read_seqbegin_or_lock()

Oleg Nesterov <oleg@...hat.com> wrote:

> > > 	- the usage of read_seqbegin_or_lock/need_seqretry in
> > > 	  this code makes no sense because read_seqlock_excl()
> > > 	  is not possible
> >
> > Not exactly.  I think it should take a lock on the second pass.
> 
> OK, then how about the patch below?

That seems to work.

David

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ