netdev - Re: Documentation: rw_lock lessons learned

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]

Date:	Fri, 13 Nov 2009 11:15:42 -0500
From:	William Allen Simpson <william.allen.simpson@...il.com>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
CC:	Stephen Hemminger <shemminger@...tta.com>, sclark46@...thlink.net,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Developers <linux-kernel@...r.kernel.org>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: Documentation: rw_lock lessons learned

Stefan Richter wrote:
> Stephen Hemminger wrote:
>> On Thu, 12 Nov 2009 14:13:03 -0500
>> Stephen Clark <sclark46@...thlink.net> wrote:
>>> How up to date is this doc?
>>>
>>> http://www.kernel.org/pub/linux/kernel/people/rusty/kernel-locking/index.html
>>>
>> Out of date.
>> 1. Missing mutex's which have largely replaced semaphores.
>>
>> 2. Missing change to lock initialization in later kernels.
>>
>> 3. Missing description of lock dependency checker which should be in same guide.
> 
> 4. The section on atomic reference counting should refer to <linux/kref.h>.

I'd also read that, and that's where I got some of my wrong thinking.  But
that does point to Documentation/spin_locks.txt, which I took to be
authoritative (and followed).  That's the reason spin_locks.txt should be
updated, as others are having the same problems....

Anybody have answers/updates to Linus's concerns about "pretty old and
bogus language"?

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html