From mboxrd@z Thu Jan 1 00:00:00 1970 From: paulmck@linux.vnet.ibm.com (Paul E. McKenney) Date: Thu, 21 May 2015 20:26:15 -0700 Subject: [PATCH tip/core/rcu 7/9] arm64: Use common outgoing-CPU-notification code In-Reply-To: <20150521132557.GK29424@e104818-lin.cambridge.arm.com> References: <20150512214945.GA813@linux.vnet.ibm.com> <1431467407-1223-1-git-send-email-paulmck@linux.vnet.ibm.com> <1431467407-1223-7-git-send-email-paulmck@linux.vnet.ibm.com> <20150521085806.GC21920@arm.com> <20150521124833.GJ6776@linux.vnet.ibm.com> <20150521132557.GK29424@e104818-lin.cambridge.arm.com> Message-ID: <20150522032615.GD6776@linux.vnet.ibm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, May 21, 2015 at 02:25:57PM +0100, Catalin Marinas wrote: > On Thu, May 21, 2015 at 05:48:33AM -0700, Paul E. McKenney wrote: > > On Thu, May 21, 2015 at 09:58:06AM +0100, Will Deacon wrote: > > > On Tue, May 12, 2015 at 10:50:05PM +0100, Paul E. McKenney wrote: > > > > From: "Paul E. McKenney" > > > > > > > > This commit removes the open-coded CPU-offline notification with new > > > > common code. In particular, this change avoids calling scheduler code > > > > using RCU from an offline CPU that RCU is ignoring. This is a minimal > > > > change. A more intrusive change might invoke the cpu_check_up_prepare() > > > > and cpu_set_state_online() functions at CPU-online time, which would > > > > allow onlining throw an error if the CPU did not go offline properly. > > > > > > > > Signed-off-by: Paul E. McKenney > > > > Cc: linux-arm-kernel at lists.infradead.org > > > > Cc: Catalin Marinas > > > > Cc: Will Deacon > > > > --- > > > > arch/arm64/kernel/smp.c | 6 ++---- > > > > 1 file changed, 2 insertions(+), 4 deletions(-) > > > > > > I don't have a better idea, so: > > > > > > Acked-by: Will Deacon > > > > > > Is this queued via -tip already, or can we pick it into the arm64 tree > > > for 4.2? > > > > Feel free to take it into the arm64 tree. Just let me know, and I > > will drop it from my tree. > > Queued for 4.2. Thanks. Very good, dropped from my tree. Thanx, Paul