Re: [PATCH v4 1/6] rust_binder: avoid allocating under node_refs for freeze listeners

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Jul 07, 2026 at 10:28:51AM +0000, Alice Ryhl wrote:
> The node_refs mutex needs to be changed to a spinlock, so in preparation
> for that, update freeze.rs to avoid allocating under the node_refs lock.
> This is done by adding a retry loop so that if add_freeze_listener()
> requires reallocating the KVVec<_> of freeze listeners, the caller will
> allocate a larger vector and retry.
> 
> Analogously, the remove_freeze_listener() function is updated to return
> the empty KVVec<_> when it is no longer needed, to avoid calling
> kvfree() under the node_refs lock.
> 
> Reviewed-by: Matthew Maurer <mmaurer@google.com>
> Signed-off-by: Alice Ryhl <aliceryhl@google.com>
> ---
>  drivers/android/binder/freeze.rs | 65 +++++++++++++++++++++++++++-------------
>  drivers/android/binder/node.rs   | 41 +++++++++++++------------
>  2 files changed, 64 insertions(+), 42 deletions(-)
> 

This doesn't apply against my tree now, given all of the binder patches
now added?  Can you rebase against char-misc-testing and resend?

thanks,

greg k-h