On Mar 30, 2022, at 5:00 PM, Thomas Gleixner [off-list ref] wrote:

On Wed, Mar 30 2022 at 15:56, Song Liu wrote:

quoted

We cannot yet savely enable HAVE_ARCH_HUGE_VMAP for all vmalloc in X86_64.
Let bpf_prog_pack to call __vmalloc_node_range() with VM_TRY_HUGE_VMAP
directly.

Again, this changelog lacks any form of reasoning and justification.

Aside of that there is absolutely nothing x86_64 specific in the patch.

You might know all the details behind this change today, but will you be
able to make sense of the above half a year from now?

Even if you can, then anyone else is left in the dark.

Thanks,

       tglx

I will provide more information in the next version.

Thanks,
Song