io_uring/futex: don't mark futex wake requests as inflight

Commit 079afb081c42 ("io_uring/futex: mark wait requests as inflight")
added inflight tracking to ensure that do_exit() ->
io_uring_files_cancel() finds and cancels pending futex waits before the
mm goes away, as a private futex wait depends on the mm private futex
hash staying alive for the duration of the request. However, as
io_futex_prep() is shared between FUTEX_WAIT and FUTEX_WAKE, wake
requests got marked as inflight as well.

A futex wake executes fully inline at issue time and never depends on
the mm staying alive after completion, hence there's no need to track
it. Kill it.

Cc: stable@vger.kernel.org
Fixes: 079afb081c42 ("io_uring/futex: mark wait requests as inflight")
Reported-by: Chengfeng Lin <lin2530632123@gmail.com>
Link: https://lore.kernel.org/io-uring/CANGjgdn=R_qyUdE=j9za+vkmqcxacbP-84OHXF4nZ4ho9qRyVg@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>

0 files changed, 0 insertions, 0 deletions