SYSCALL_DEFINE4

Name:SYSCALL_DEFINE4

Proto:SYSCALL_DEFINE4(io_uring_register, unsigned int, fd, unsigned int, opcode, void __user *, arg, unsigned int, nr_args)

Type:

Parameter:Nothing

5537

ret = -EBADF

5540

f = fdget(fd)

5541

If Not file Then Return -EBADF

5544

ret = -EOPNOTSUPP

5545

If f_op != io_uring_fops Then Go to out_fput

5548

ctx = needed for tty driver, and maybe others

5550

mutex_lock( & uring_lock)

5551

ret = __io_uring_register(ctx, opcode, arg, nr_args)

5552

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

5553

_uring_register - called after a buffer/file/eventfd was succesfully* registered for a ring*@ctx: pointer to a ring context structure*@opcode: describes which operation to perform*@nr_user_files: number of registered files*@nr_user_bufs: number of

5555

5556

5557

Return ret

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion