linux-kernel - Re: [PATCH 3/5] mm: export zap_page_range_single and list_lru

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Message-ID: <aYSH5KG36fVQFePL@google.com>
Date: Thu, 5 Feb 2026 12:07:00 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Carlos Llamas <cmllamas@...gle.com>, 
	Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
	Paul Moore <paul@...l-moore.com>, James Morris <jmorris@...ei.org>, 
	"Serge E. Hallyn" <serge@...lyn.com>, Andrew Morton <akpm@...ux-foundation.org>, 
	Dave Chinner <david@...morbit.com>, Qi Zheng <zhengqi.arch@...edance.com>, 
	Roman Gushchin <roman.gushchin@...ux.dev>, Muchun Song <muchun.song@...ux.dev>, 
	David Hildenbrand <david@...nel.org>, "Liam R. Howlett" <Liam.Howlett@...cle.com>, 
	Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>, 
	Michal Hocko <mhocko@...e.com>, Miguel Ojeda <ojeda@...nel.org>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, kernel-team@...roid.com, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org, 
	linux-mm@...ck.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH 3/5] mm: export zap_page_range_single and list_lru_add/del

On Thu, Feb 05, 2026 at 11:29:04AM +0000, Lorenzo Stoakes wrote:
> We either need a wrapper that eliminates this parameter (but then we're adding a
> wrapper to this behaviour that is literally for one driver that is _temporarily_
> being modularised which is weak justifiction), or use of a function that invokes
> it that is currently exported.

I have not talked with distros about it, but quite a few of them enable
Binder because one or two applications want to use Binder to emulate
Android. I imagine that even if Android itself goes back to built-in,
distros would want it as a module so that you don't have to load it for
every user, rather than for the few users that want to use waydroid or
similar.

A few examples:
https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/blob/5711a17344ec7cfd90443374a30d5cd3e9a9439e/config#L10993
https://salsa.debian.org/kernel-team/linux/-/blob/debian/latest/debian/config/arm64/config?ref_type=heads#L106
https://gitlab.com/cki-project/kernel-ark/-/blob/os-build/redhat/configs/fedora/generic/x86/CONFIG_ANDROID_BINDER_IPC?ref_type=heads

Alice