From mboxrd@z Thu Jan 1 00:00:00 1970 From: rostedt@goodmis.org (Steven Rostedt) Date: Thu, 19 Mar 2015 15:01:11 -0400 Subject: [RFC PATCH 2/7] printk: Simple implementation for NMI backtracing In-Reply-To: <550B19EA.6000202@linaro.org> References: <1426688428-3150-1-git-send-email-daniel.thompson@linaro.org> <1426688428-3150-3-git-send-email-daniel.thompson@linaro.org> <20150319133958.4821493e@gandalf.local.home> <20150319183037.GT23123@twins.programming.kicks-ass.net> <550B19EA.6000202@linaro.org> Message-ID: <20150319150111.778d21d3@gandalf.local.home> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, 19 Mar 2015 18:48:10 +0000 Daniel Thompson wrote: \ > The barrier was not intended to have anything to do with put_cpu() > either though since the barrier was added before put_cpu() arrived: > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=554ec063982752e9a569ab9189eeffa3d96731b2 > > There's nothing in the commit comment explaining the barrier and I > really can't see what it is for. > Looks like it wasn't needed then either. -- Steve