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Re: [RFC][PATCH 0/5] arch: atomic rework
- From: Peter Zijlstra <peterz at infradead dot org>
- To: "Paul E. McKenney" <paulmck at linux dot vnet dot ibm dot com>
- Cc: Torvald Riegel <triegel at redhat dot com>, Will Deacon <will dot deacon at arm dot com>, Ramana Radhakrishnan <Ramana dot Radhakrishnan at arm dot com>, David Howells <dhowells at redhat dot com>, "linux-arch at vger dot kernel dot org" <linux-arch at vger dot kernel dot org>, "linux-kernel at vger dot kernel dot org" <linux-kernel at vger dot kernel dot org>, "torvalds at linux-foundation dot org" <torvalds at linux-foundation dot org>, "akpm at linux-foundation dot org" <akpm at linux-foundation dot org>, "mingo at kernel dot org" <mingo at kernel dot org>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Fri, 7 Feb 2014 08:44:05 +0100
- Subject: Re: [RFC][PATCH 0/5] arch: atomic rework
- Authentication-results: sourceware.org; auth=none
- References: <20140206134825 dot 305510953 at infradead dot org> <21984 dot 1391711149 at warthog dot procyon dot org dot uk> <52F3DA85 dot 1060209 at arm dot com> <20140206185910 dot GE27276 at mudshark dot cambridge dot arm dot com> <20140206192743 dot GH4250 at linux dot vnet dot ibm dot com> <1391721423 dot 23421 dot 3898 dot camel at triegel dot csb> <20140206221117 dot GJ4250 at linux dot vnet dot ibm dot com> <1391730288 dot 23421 dot 4102 dot camel at triegel dot csb> <20140207042051 dot GL4250 at linux dot vnet dot ibm dot com>
On Thu, Feb 06, 2014 at 08:20:51PM -0800, Paul E. McKenney wrote:
> Hopefully some discussion of out-of-thin-air values as well.
Yes, absolutely shoot store speculation in the head already. Then drive
a wooden stake through its hart.
C11/C++11 should not be allowed to claim itself a memory model until that
is sorted.