On 08/12/2013 02:08 PM, Tejun Heo wrote:

On Mon, Aug 12, 2013 at 02:06:07PM -0700, Yinghai Lu wrote:

quoted

"near kernel" is not very clear. when we have 64bit boot loader,
kernel could be anywhere. If the kernel is near the end of first
kernel, we could have chance to
have near kernel on second node.

should use BRK for safe if the buffer is not too big. need bootloader
will have kernel run-time size range in same node ram.

How would that make any difference?  You're just expanding the size of
kernel image instead of reserving it around the image.  It's exactly
the same thing.  You're just less flexible if you do that with BRK.
What am I missing here?

The BRK is what we know is free.  Beyond that point you need
understanding of the memory map.

	-hpa

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