Re: [PATCH] Add FUTEX_CMP_REQUEUE futex op

[Ingo Molnar]

On Thu, 20 May 2004, Andrew Morton wrote:

> >  asmlinkage long sys_futex(u32 __user *uaddr, int op, int val,
> > -			  struct timespec __user *utime, u32 __user *uaddr2)
> > +			  struct timespec __user *utime, u32 __user *uaddr2,
> > +			  int val3)
> 
> Is it safe to go adding a new argument to an existing syscall in this manner?
> 
> It'll work OK on x86 because of the stack layout but is the same true of
> all other supported architectures?

we added a new futex paramater once before (the original requeue patch) -
so if it broke anything, it didnt break loud enough for anyone to notice
:-|

	Ingo
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