Re: [PATCH] x86: pass in pt_regs pointer for syscalls that need it (take 2)

["H. Peter Anvin" <hpa@zytor.com>]

Brian Gerst wrote:
> Some syscalls need to access the pt_regs structure, either to copy
> user register state or to modifiy it.  This patch adds stubs to load
> the address of the pt_regs struct into the %eax register, and changes
> the syscalls to take the pointer as an argument instead of relying on
> the assumption that the pt_regs structure overlaps the function
> arguments.
> 
> Signed-off-by: Brian Gerst <brgerst@gmail.com>

Testing this now, together with the do_rt_sigreturn -> sys_rt_sigreturn 
change.  If it works okay I'll commit it as an incremental diff to 
tip:core/percpu.

	-hpa