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Switch timerfd to using fops->read_iter(), so it can support not just O_NONBLOCK but IOCB_NOWAIT as well. With the latter, users like io_uring interact with timerfds a lot better, as they can be driven purely by the poll trigger. Manually get and install the required fd, so that FMODE_NOWAIT can be set before the file is installed into the file table. No functional changes intended in this patch, it's purely a straight conversion to using the read iterator method. Signed-off-by: Jens Axboe <axboe@kernel.dk>
628 lines
14 KiB
628 lines
14 KiB