[PATCH 1/2] ARM: implement support for read-mostly sections

[Catalin Marinas]

On 5 December 2010 23:04, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:
> On Sun, Dec 05, 2010 at 10:18:27PM +0000, Catalin Marinas wrote:
>> On 5 December 2010 11:43, Russell King - ARM Linux
>> <linux at arm.linux.org.uk> wrote:
>> > diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
>> > index cead889..1581f6d 100644
>> > --- a/arch/arm/kernel/vmlinux.lds.S
>> > +++ b/arch/arm/kernel/vmlinux.lds.S
>> > @@ -167,6 +167,7 @@ SECTIONS
>> >
>> >                NOSAVE_DATA
>> >                CACHELINE_ALIGNED_DATA(32)
>> > +               READ_MOSTLY_DATA(32)
>>
>> Should we change the alignments to 64?
>
> When we have some way to tell vmlinux.lds.S what the cache line size is.

I haven't tried but can we not use CONFIG_ARM_L1_CACHE_SHIFT?

-- 
Catalin