Re: [PATCH v3 4/5] binder: Remove mmap_lock fallback

[Suren Baghdasaryan]

On Mon, Aug 3, 2026 at 3:34 AM Alice Ryhl <aliceryhl@xxxxxxxxxx> wrote:
>
> On Sun, Aug 02, 2026 at 02:54:58PM -0700, Suren Baghdasaryan wrote:
> > From: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> >
> > Previously, the per-VMA locking could fail in the face of writers
> > which necessitate a fallback to mmap_lock. The new
> > vma_start_read_unlocked() will wait for writers instead of failing.
> >
> > Use the new helper. Wait for writers. Remove the fallback to mmap_lock.
> >
> > Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> > Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
>
> Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>

Thanks!