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

On Mon, Aug 3, 2026 at 3:34 AM Alice Ryhl [off-list ref] wrote:

On Sun, Aug 02, 2026 at 02:54:58PM -0700, Suren Baghdasaryan wrote:

quoted

From: Dave Hansen <dave.hansen@linux.intel.com>

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@linux.intel.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Reviewed-by: Alice Ryhl <aliceryhl@google.com>

Thanks!