linux-kernel - Re: [PATCH 16/16] rxrpc: Replace smp_read_barrier_depends() with lockless

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: <26069.1415920047@warthog.procyon.org.uk>
Date:	Thu, 13 Nov 2014 23:07:27 +0000
From:	David Howells <dhowells@...hat.com>
To:	Pranith Kumar <bobby.prani@...il.com>
Cc:	dhowells@...hat.com, "David S. Miller" <davem@...emloft.net>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	"open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>,
	paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH 16/16] rxrpc: Replace smp_read_barrier_depends() with lockless_dereference()

Pranith Kumar <bobby.prani@...il.com> wrote:

> OK. Should I send in a patch removing these barriers then?

No.  There need to be stronger barriers, at least in some of the cases.
circular-buffers.txt details what is required, but not all of the cases match
the pattern there, so it needs a bit more consideration.

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/