Re: [PATCH RT] Revert "ARM: Initialize split page table locks for vector page"

[Sebastian Andrzej Siewior]

On 2019-10-15 09:26:09 [-0700], Matthew Wilcox wrote:
> Did your test build have ALLOC_SPLIT_PTLOCKS defined?

I tried to explain that ptlock_ptr() returns NULL for the page before
the ctor invocation and non-NULL afterwards which means that
USE_SPLIT_PTE_PTLOCKS and ALLOC_SPLIT_PTLOCKS was defined.

Sebastian