Add support for TIF_NOTIFY_SIGNAL
From: | Jens Axboe <axboe-AT-kernel.dk> | |
To: | linux-kernel-AT-vger.kernel.org, io-uring-AT-vger.kernel.org | |
Subject: | [PATCHSET v6a 0/4] Add support for TIF_NOTIFY_SIGNAL | |
Date: | Mon, 26 Oct 2020 14:32:26 -0600 | |
Message-ID: | <20201026203230.386348-1-axboe@kernel.dk> | |
Cc: | peterz-AT-infradead.org, oleg-AT-redhat.com, tglx-AT-linutronix.de | |
Archive-link: | Article |
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