On Thu, Apr 13, 2017 at 12:39 PM, Balbir Singh <bsinghar...@gmail.com> wrote: >>> >>> Yes. It was derived from TASK_SIZE : >>> >>> http://lxr.free-electrons.com/source/arch/powerpc/include/asm/processor.h#L105 >>> >> >> That is getting update to 128TB by default and conditionally to 512TB >> > > Since this is compile time, we should probably keep the scope to 128TB > for now and see if we want to change things at run time later, since > the expansion is based on a hint. Suggestions? >
I think this makes sense. If the conditional expansion to 512TB is protected by a kconfig symbol, we can use the same to have separate ranges for 128TB and 512TB using the kconfig symbol as the differentiating factor. Also please let me know which branch/tree to use where we are done with the change making the default to 128TB. My v2 was based on git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git (mater branch), where the TASK_SIZE is set to 46-bits inside 'arch/powerpc/include/asm/processor.h'. So that I can spin the v3 accordingly. Thanks, Bhupesh
