Thread (95 messages) flat view 95 messages, 8 authors, 1d ago

Re: [PATCH v2 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL

From: "David Hildenbrand (Arm)" <david@kernel.org>
Date: 2026-09-18 20:21:13
Also in: bpf, dri-devel, fuse-devel, kvm, kvm-riscv, kvmarm, linux-arch, linux-doc, linux-fbdev, linux-fsdevel, linux-mm, linux-perf-users, linux-rdma, linux-s390, linux-scsi, linux-sound, linux-usb, linuxppc-dev, lkml, selinux, sparclinux

On 9/15/26 03:08, Andrew Morton wrote:
On Mon, 14 Sep 2026 15:57:20 +0100 "Lorenzo Stoakes (ARM)" [off-list ref] wrote:
quoted
The VM_SPECIAL / VMA_SPECIAL_FLAGS mask conflates several unrelated
properties:

...

It's all rather a mess.

This series brings some order to things by both limiting what drivers can
do with VMA flags and switching to using predicates that describe
behaviour, not arbitrary flags.
That's a lot of patches.

Review is thin and I expect this won't improve a lot.  Lots of "no
functional changes" changes.
I'll expect to go through all of them. Might just take a bit ;)

-- 
Cheers,

David
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