signalfd: convert to ->read_iter()

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Rather than use the older style ->read() hook, use ->read_iter() so that
signalfd can support both O_NONBLOCK and IOCB_NOWAIT for non-blocking
read attempts.

Split the fd setup into two parts, so that signalfd can mark the file
mode with FMODE_NOWAIT before installing it into the process table.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2024-04-02 12:12:18 -06:00

parent 40f45fe8eb

commit fbe38120eb

1 changed files with 28 additions and 16 deletions

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fs/signalfd.c

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