Hi, The goal is this patch series is to decouple TWA_SIGNAL based task_work from real signals and signal delivery. The motivation is speeding up TWA_SIGNAL based task_work, particularly for threaded setups where ->sighand is shared across threads. See the last patch for numbers.
On top of this I have an arch series that wires up TIF_NOTIFY_SIGNAL for all archs, and then procedes to kill off the legacy TWA_SIGNAL path, and the code associated with it. Changes since v6: - Rebase to 5.10-rc1 -- Jens Axboe
