Re: [RFC 3/3] kexec: extend kexec_file_load system call
From: Vivek Goyal <vgoyal@redhat.com>
Date: 2016-07-15 13:10:48
Also in:
kexec, linux-arm-kernel, linuxppc-dev
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