From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 25 Jun 2013 12:58:58 +1000 From: Michael Ellerman To: Benjamin Herrenschmidt Subject: Re: [PATCH 40/45] powerpc, irq: Use GFP_ATOMIC allocations in atomic context Message-ID: <20130625025858.GE14051@concordia> References: <20130623133642.19094.16038.stgit@srivatsabhat.in.ibm.com> <20130623134657.19094.93687.stgit@srivatsabhat.in.ibm.com> <20130625020842.GD14051@concordia> <1372126384.3944.177.camel@pasglop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1372126384.3944.177.camel@pasglop> Cc: peterz@infradead.org, fweisbec@gmail.com, linux-kernel@vger.kernel.org, Paul Mackerras , walken@google.com, mingo@kernel.org, linux-arch@vger.kernel.org, vincent.guittot@linaro.org, xiaoguangrong@linux.vnet.ibm.com, wangyun@linux.vnet.ibm.com, paulmck@linux.vnet.ibm.com, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, rusty@rustcorp.com.au, rostedt@goodmis.org, Ian Munsie , namhyung@kernel.org, tglx@linutronix.de, laijs@cn.fujitsu.com, zhong@linux.vnet.ibm.com, netdev@vger.kernel.org, oleg@redhat.com, sbw@mit.edu, "Srivatsa S. Bhat" , tj@kernel.org, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Jun 25, 2013 at 12:13:04PM +1000, Benjamin Herrenschmidt wrote: > On Tue, 2013-06-25 at 12:08 +1000, Michael Ellerman wrote: > > We're not checking for allocation failure, which we should be. > > > > But this code is only used on powermac and 85xx, so it should probably > > just be a TODO to fix this up to handle the failure. > > And what can we do if they fail ? Fail up the chain and not unplug the CPU presumably. cheers