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SubjectRe: [RFC 3/3] kexec: extend kexec_file_load system call
On Tue, Jul 12, 2016 at 10:42:01AM +0900, AKASHI Takahiro wrote:

[..]
> -SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
> +SYSCALL_DEFINE6(kexec_file_load, int, kernel_fd, int, initrd_fd,
> unsigned long, cmdline_len, const char __user *, cmdline_ptr,
> - unsigned long, flags)
> + unsigned long, flags, const struct kexec_fdset __user *, ufdset)

Can one add more parameters to existing syscall. Can it break existing
programs with new kernel? I was of the impression that one can't do that.
But may be I am missing something.

Vivek

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