Hi,
On Thu, Apr 4, 2013 at 12:19 AM, Russell King - ARM Linux
wrote:
>
> Still not convinced this is a proper fix. Look, the problem is this:
>
> - Initially, set the CPU percpu offset to zero. This means the boot
> CPU reads and writes to the percpu data section in the kernel image.
>
> -
Hi,
On Thu, Apr 4, 2013 at 12:19 AM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Still not convinced this is a proper fix. Look, the problem is this:
- Initially, set the CPU percpu offset to zero. This means the boot
CPU reads and writes to the percpu data section in the
On Tue, Mar 12, 2013 at 10:56:38AM +, Russell King - ARM Linux wrote:
> On Tue, Mar 12, 2013 at 10:32:21AM +0800, Ming Lei wrote:
> > On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei wrote:
> > > Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
> > > introduces arm's
On Tue, Mar 12, 2013 at 10:56:38AM +, Russell King - ARM Linux wrote:
On Tue, Mar 12, 2013 at 10:32:21AM +0800, Ming Lei wrote:
On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei tom.leim...@gmail.com wrote:
Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces
On Wed, Mar 13, 2013 at 1:25 AM, Tejun Heo wrote:
> Hello,
>
> On Tue, Mar 12, 2013 at 07:44:55PM +0800, Ming Lei wrote:
>> On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
>> wrote:
>> >>
>> >> Ingo and Peter, what is your opinion on the problem?
>> >
>> > Having discussed this with
Hello,
On Tue, Mar 12, 2013 at 07:44:55PM +0800, Ming Lei wrote:
> On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
> wrote:
> >>
> >> Ingo and Peter, what is your opinion on the problem?
> >
> > Having discussed this with Ben Herrenschmidt, it seems that we do need
> > to have a more
On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
wrote:
>>
>> Ingo and Peter, what is your opinion on the problem?
>
> Having discussed this with Ben Herrenschmidt, it seems that we do need
> to have a more complex patch to sort this out - we need to setup our
> private pointer inside
On Tue, Mar 12, 2013 at 07:25:28PM +0800, Ming Lei wrote:
> On Tue, Mar 12, 2013 at 6:56 PM, Russell King - ARM Linux
> wrote:
> >>
> >> Looks no one objects the patch, so I has submitted it into Russell's
> >> patch system, and hope it can be pushed to linus tree soon and
> >> make
On Tue, Mar 12, 2013 at 6:56 PM, Russell King - ARM Linux
wrote:
>>
>> Looks no one objects the patch, so I has submitted it into Russell's
>> patch system, and hope it can be pushed to linus tree soon and
>> make LOCK_STAT/DEBUG_LOCKDEP usable on ARMv7.
>
> I'm not convinced it is correct. Is
On Tue, Mar 12, 2013 at 10:32:21AM +0800, Ming Lei wrote:
> On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei wrote:
> > Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
> > introduces arm's __my_cpu_offset to optimize percpu vaiable access,
> > which really works well on
On Tue, Mar 12, 2013 at 10:32:21AM +0800, Ming Lei wrote:
On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei tom.leim...@gmail.com wrote:
Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces arm's __my_cpu_offset to optimize percpu vaiable access,
which really works
On Tue, Mar 12, 2013 at 6:56 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Looks no one objects the patch, so I has submitted it into Russell's
patch system, and hope it can be pushed to linus tree soon and
make LOCK_STAT/DEBUG_LOCKDEP usable on ARMv7.
I'm not convinced it is
On Tue, Mar 12, 2013 at 07:25:28PM +0800, Ming Lei wrote:
On Tue, Mar 12, 2013 at 6:56 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Looks no one objects the patch, so I has submitted it into Russell's
patch system, and hope it can be pushed to linus tree soon and
make
On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Ingo and Peter, what is your opinion on the problem?
Having discussed this with Ben Herrenschmidt, it seems that we do need
to have a more complex patch to sort this out - we need to setup our
private
Hello,
On Tue, Mar 12, 2013 at 07:44:55PM +0800, Ming Lei wrote:
On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Ingo and Peter, what is your opinion on the problem?
Having discussed this with Ben Herrenschmidt, it seems that we do need
to have
On Wed, Mar 13, 2013 at 1:25 AM, Tejun Heo t...@kernel.org wrote:
Hello,
On Tue, Mar 12, 2013 at 07:44:55PM +0800, Ming Lei wrote:
On Tue, Mar 12, 2013 at 7:30 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Ingo and Peter, what is your opinion on the problem?
Having
On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei wrote:
> Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
> introduces arm's __my_cpu_offset to optimize percpu vaiable access,
> which really works well on hackbench, but will cause __my_cpu_offset
> to return garbage value before
On Thu, Mar 7, 2013 at 9:35 PM, Ming Lei tom.leim...@gmail.com wrote:
Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces arm's __my_cpu_offset to optimize percpu vaiable access,
which really works well on hackbench, but will cause __my_cpu_offset
to return
Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces arm's __my_cpu_offset to optimize percpu vaiable access,
which really works well on hackbench, but will cause __my_cpu_offset
to return garbage value before it is initialized in cpu_init() called
by setup_arch, so
Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces arm's __my_cpu_offset to optimize percpu vaiable access,
which really works well on hackbench, but will cause __my_cpu_offset
to return garbage value before it is initialized in cpu_init() called
by setup_arch, so
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