io_uring: make sure accept honor rlimit nofile
Just like commit 4022e7af, this fixes the fact that IORING_OP_ACCEPT ends up using get_unused_fd_flags(), which checks current->signal->rlim[] for limits. Add an extra argument to __sys_accept4_file() that allows us to pass in the proper nofile limit, and grab it at request prep time. Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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