mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
004d564f90
Various fixes and changes have been applied to liburing since we copied some select bits to the kernel testing/examples part, sync up with liburing to get those changes. Most notable is the change that split the CQE reading into the peek and seen event, instead of being just a single function. Also fixes an unsigned wrap issue in io_uring_submit(), leak of 'fd' in setup if we fail, and various other little issues. Signed-off-by: Jens Axboe <axboe@kernel.dk>
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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* Will go away once libc support is there
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*/
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/uio.h>
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#include <signal.h>
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#include "liburing.h"
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#ifdef __alpha__
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/*
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* alpha is the only exception, all other architectures
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* have common numbers for new system calls.
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*/
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# ifndef __NR_io_uring_setup
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# define __NR_io_uring_setup 535
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# endif
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# ifndef __NR_io_uring_enter
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# define __NR_io_uring_enter 536
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# endif
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# ifndef __NR_io_uring_register
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# define __NR_io_uring_register 537
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# endif
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#else /* !__alpha__ */
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# ifndef __NR_io_uring_setup
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# define __NR_io_uring_setup 425
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# endif
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# ifndef __NR_io_uring_enter
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# define __NR_io_uring_enter 426
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# endif
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# ifndef __NR_io_uring_register
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# define __NR_io_uring_register 427
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# endif
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#endif
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int io_uring_register(int fd, unsigned int opcode, void *arg,
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unsigned int nr_args)
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{
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return syscall(__NR_io_uring_register, fd, opcode, arg, nr_args);
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}
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int io_uring_setup(unsigned int entries, struct io_uring_params *p)
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{
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return syscall(__NR_io_uring_setup, entries, p);
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}
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int io_uring_enter(int fd, unsigned int to_submit, unsigned int min_complete,
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unsigned int flags, sigset_t *sig)
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{
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return syscall(__NR_io_uring_enter, fd, to_submit, min_complete,
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flags, sig, _NSIG / 8);
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}
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