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From: Jens Axboe <>
Subject: [PATCHSET v6a 0/4] Add support for TIF_NOTIFY_SIGNAL
Date: Mon, 26 Oct 2020 14:32:26 -0600
Message-ID: <> (raw)


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

             reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-26 20:32 Jens Axboe [this message]
2020-10-26 20:32 ` [PATCH 1/4] kernel: add task_sigpending() helper Jens Axboe
2020-10-26 20:32 ` [PATCH 2/4] kernel: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-26 20:32 ` [PATCH 3/4] x86: wire up TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-26 20:32 ` [PATCH 4/4] task_work: use TIF_NOTIFY_SIGNAL if available Jens Axboe

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