linux-kernel - Re: [RFC][PATCH 5/9] rbtree: Make lockless searches non-fatal

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: <20150302095346.GE24151@twins.programming.kicks-ass.net>
Date:	Mon, 2 Mar 2015 10:53:46 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Michel Lespinasse <walken@...gle.com>
Cc:	mingo@...nel.org, rusty@...tcorp.com.au,
	mathieu.desnoyers@...icios.com, oleg@...hat.com,
	paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	andi@...stfloor.org, rostedt@...dmis.org, tglx@...utronix.de,
	Andrea Arcangeli <aarcange@...hat.com>,
	David Woodhouse <David.Woodhouse@...el.com>,
	Rik van Riel <riel@...hat.com>,
	Josh Triplett <josh@...htriplett.org>
Subject: Re: [RFC][PATCH 5/9] rbtree: Make lockless searches non-fatal

On Mon, Mar 02, 2015 at 09:23:45AM +0100, Peter Zijlstra wrote:
> It changes the rb-tree from using internal storage like we do now, to
> requiring external storage.

Note that one consequence of using external storage is that tree
iteration will always require two cachelines per level. One to
load the node and one to load the search key.
--
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/