| Message ID | E1r0JLV-00CTxS-QB@rmk-PC.armlinux.org.uk (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
| Series | Initial cleanups for vCPU hotplug | expand |
On 11/7/23 20:30, Russell King (Oracle) wrote: > From: James Morse <james.morse@arm.com> > > NUMA systems require the node descriptions to be ready before CPUs are > registered. This is so that the node symlinks can be created in sysfs. > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > are registered by arch code, instead of cpu_dev_init(). > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > can use GENERIC_CPU_DEVICES. > > Signed-off-by: James Morse <james.morse@arm.com> > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > --- > Note: Jonathan's comment still needs addressing - see > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > --- > drivers/base/init.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > With Jonathan's comments addressed: Reviewed-by: Gavin Shan <gshan@redhat.com>
On Mon, Nov 13, 2023 at 10:58:46AM +1000, Gavin Shan wrote: > > > On 11/7/23 20:30, Russell King (Oracle) wrote: > > From: James Morse <james.morse@arm.com> > > > > NUMA systems require the node descriptions to be ready before CPUs are > > registered. This is so that the node symlinks can be created in sysfs. > > > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > > are registered by arch code, instead of cpu_dev_init(). > > > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > > can use GENERIC_CPU_DEVICES. > > > > Signed-off-by: James Morse <james.morse@arm.com> > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > > --- > > Note: Jonathan's comment still needs addressing - see > > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > > --- > > drivers/base/init.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > With Jonathan's comments addressed: That needs James' input, which is why I made the note on the patch.
On Mon, Nov 13, 2023 at 08:00:19AM +0000, Russell King (Oracle) wrote: > On Mon, Nov 13, 2023 at 10:58:46AM +1000, Gavin Shan wrote: > > > > > > On 11/7/23 20:30, Russell King (Oracle) wrote: > > > From: James Morse <james.morse@arm.com> > > > > > > NUMA systems require the node descriptions to be ready before CPUs are > > > registered. This is so that the node symlinks can be created in sysfs. > > > > > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > > > are registered by arch code, instead of cpu_dev_init(). > > > > > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > > > can use GENERIC_CPU_DEVICES. > > > > > > Signed-off-by: James Morse <james.morse@arm.com> > > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > > > --- > > > Note: Jonathan's comment still needs addressing - see > > > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > > > --- > > > drivers/base/init.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > With Jonathan's comments addressed: > > That needs James' input, which is why I made the note on the patch. I'm going to be posting the series without RFC soon, and it will be with Jonathan's comment unaddressed - because as I've said several times it needs James' input and we have sadly not yet received that. Short of waiting until James can respond, I don't think there are any other alternatives. I do hope we can get this queued up for v6.8 though.
On Tue, 21 Nov 2023 13:27:08 +0000 "Russell King (Oracle)" <linux@armlinux.org.uk> wrote: > On Mon, Nov 13, 2023 at 08:00:19AM +0000, Russell King (Oracle) wrote: > > On Mon, Nov 13, 2023 at 10:58:46AM +1000, Gavin Shan wrote: > > > > > > > > > On 11/7/23 20:30, Russell King (Oracle) wrote: > > > > From: James Morse <james.morse@arm.com> > > > > > > > > NUMA systems require the node descriptions to be ready before CPUs are > > > > registered. This is so that the node symlinks can be created in sysfs. > > > > > > > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > > > > are registered by arch code, instead of cpu_dev_init(). > > > > > > > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > > > > can use GENERIC_CPU_DEVICES. > > > > > > > > Signed-off-by: James Morse <james.morse@arm.com> > > > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > > > > --- > > > > Note: Jonathan's comment still needs addressing - see > > > > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > > > > --- > > > > drivers/base/init.c | 2 +- > > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > > > > With Jonathan's comments addressed: > > > > That needs James' input, which is why I made the note on the patch. > > I'm going to be posting the series without RFC soon, and it will be > with Jonathan's comment unaddressed - because as I've said several > times it needs James' input and we have sadly not yet received that. > > Short of waiting until James can respond, I don't think there are > any other alternatives. In the interests of expediency I'm fine with that. (To be honest I'd forgotten I even made that comment ;) Jonathan > > I do hope we can get this queued up for v6.8 though. >
On Tue, 28 Nov 2023 13:55:36 +0000 Jonathan Cameron <Jonathan.Cameron@Huawei.com> wrote: > On Tue, 21 Nov 2023 13:27:08 +0000 > "Russell King (Oracle)" <linux@armlinux.org.uk> wrote: > > > On Mon, Nov 13, 2023 at 08:00:19AM +0000, Russell King (Oracle) wrote: > > > On Mon, Nov 13, 2023 at 10:58:46AM +1000, Gavin Shan wrote: > > > > > > > > > > > > On 11/7/23 20:30, Russell King (Oracle) wrote: > > > > > From: James Morse <james.morse@arm.com> > > > > > > > > > > NUMA systems require the node descriptions to be ready before CPUs are > > > > > registered. This is so that the node symlinks can be created in sysfs. > > > > > > > > > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > > > > > are registered by arch code, instead of cpu_dev_init(). > > > > > > > > > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > > > > > can use GENERIC_CPU_DEVICES. > > > > > > > > > > Signed-off-by: James Morse <james.morse@arm.com> > > > > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > > > > > --- > > > > > Note: Jonathan's comment still needs addressing - see > > > > > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > > > > > --- > > > > > drivers/base/init.c | 2 +- > > > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > > > > > > > With Jonathan's comments addressed: > > > > > > That needs James' input, which is why I made the note on the patch. > > > > I'm going to be posting the series without RFC soon, and it will be > > with Jonathan's comment unaddressed - because as I've said several > > times it needs James' input and we have sadly not yet received that. > > > > Short of waiting until James can respond, I don't think there are > > any other alternatives. > > In the interests of expediency I'm fine with that. (To be honest I'd > forgotten I even made that comment ;) > Given what I was looking for was a 'nice to have' extra bit of info in the patch description and I'm fine with the actual change even without that: Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > Jonathan > > > > > I do hope we can get this queued up for v6.8 though. *fingers crossed* ! > > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On Mon, Nov 13, 2023 at 10:58:46AM +1000, Gavin Shan wrote: > > > On 11/7/23 20:30, Russell King (Oracle) wrote: > > From: James Morse <james.morse@arm.com> > > > > NUMA systems require the node descriptions to be ready before CPUs are > > registered. This is so that the node symlinks can be created in sysfs. > > > > Currently no NUMA platform uses GENERIC_CPU_DEVICES, meaning that CPUs > > are registered by arch code, instead of cpu_dev_init(). > > > > Move cpu_dev_init() after node_dev_init() so that NUMA architectures > > can use GENERIC_CPU_DEVICES. > > > > Signed-off-by: James Morse <james.morse@arm.com> > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > > --- > > Note: Jonathan's comment still needs addressing - see > > https://lore.kernel.org/r/20230914121612.00006ac7@Huawei.com > > --- > > drivers/base/init.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > With Jonathan's comments addressed: > > Reviewed-by: Gavin Shan <gshan@redhat.com> Can I assume, given Jonathan's reply later in this sub-thread, that you are happy for me to add your r-b without the referred comment having been addressed - Jonathan says tit was a "nice to have" and he's fine without the requested change. See https://lore.kernel.org/r/20231128150017.000069eb@Huawei.com Thanks.
diff --git a/drivers/base/init.c b/drivers/base/init.c index 397eb9880cec..c4954835128c 100644 --- a/drivers/base/init.c +++ b/drivers/base/init.c @@ -35,8 +35,8 @@ void __init driver_init(void) of_core_init(); platform_bus_init(); auxiliary_bus_init(); - cpu_dev_init(); memory_dev_init(); node_dev_init(); + cpu_dev_init(); container_dev_init(); }