Messages in this thread | | | Date | Wed, 2 May 2012 18:24:53 +0100 | From | Al Viro <> | Subject | Re: [RFC] TIF_NOTIFY_RESUME, arch/*/*/*signal*.c and all such |
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On Tue, May 01, 2012 at 06:52:26AM +0100, Al Viro wrote: > IOW, here's what I'd suggest doing: > > * add that regs->orig_p0 = -1; to handle_restart() > * add jump .Lresume_userspace_1 after the call of do_notify_resume() > * instead of RESTORE_CONTEXT/rti in ret_from_fork and kernel_execve() > have them jump to .Lresume_userspace.
arrrgh... The last one is unfortunately not so simple - you have that in the guts of _system_call, which is called via pseudo_long_call, so it would ought to be a call into the middle of _system_call, followed by that RESTORE_CONTEXT/rti...
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