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Commit e2c0cb7c authored by Jens Axboe's avatar Jens Axboe
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io_uring: bump poll refs to full 31-bits



The previous commit:

1bc84c40088 ("io_uring: remove poll entry from list when canceling all")

removed a potential overflow condition for the poll references. They
are currently limited to 20-bits, even if we have 31-bits available. The
upper bit is used to mark for cancelation.

Bump the poll ref space to 31-bits, making that kind of situation much
harder to trigger in general. We'll separately add overflow checking
and handling.

Fixes: aa43477b ("io_uring: poll rework")
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 61bc84c4
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