Re: [TECH TOPIC] Reaching consensus on CONFIG_HIGHMEM phaseout
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2025-09-17 12:59:58
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On Tue, Sep 09, 2025 at 11:23:37PM +0200, Arnd Bergmann wrote:
I'm still collecting information about which of the remaining highmem users plan to keep updating their kernels and for what reason.
On this topic of removing some parts of highmem, can we say goodbye to kmap_high_get()? Only ARM uses it and only for !cache_is_vipt_nonaliasing() systems. Maybe if so then HASHED_PAGE_VIRTUAL can go too? Jason