From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Cc: rtm@csail.mit.edu, asml.silence@gmail.com
Subject: [PATCHSET 0/2] io_uring futex cleanup and fix
Date: Wed, 4 Jun 2025 10:53:33 -0600 [thread overview]
Message-ID: <20250604165647.293646-1-axboe@kernel.dk> (raw)
Hi,
Patch 1 is just a cleanup that I came across while looking into an issue
and patch 2 fixes and issue introduced in this merge window with io_uring
futex handling. Patch 2 works around the fact that since:
commit 80367ad01d93ac781b0e1df246edaf006928002f
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed Apr 16 18:29:12 2025 +0200
futex: Add basic infrastructure for local task local hash
futex is reliant on ->mm staying alive for the duration of the futex
or futexv wait requests, if those requests are using FUTEX2_PRIVATE.
These types of futex requests use a per-task private hash queue, and
will actively remove those at __mmput() time.
io_uring/futex.c | 11 ++++++-----
io_uring/io_uring.c | 7 ++++++-
io_uring/io_uring.h | 1 +
3 files changed, 13 insertions(+), 6 deletions(-)
--
Jens Axboe
next reply other threads:[~2025-06-04 16:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 16:53 Jens Axboe [this message]
2025-06-04 16:53 ` [PATCH 1/2] io_uring/futex: get rid of struct io_futex addr union Jens Axboe
2025-06-04 16:53 ` [PATCH 2/2] io_uring/futex: mark wait requests as inflight Jens Axboe
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