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

[Alice Ryhl]

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>