| Date | Sat, 19 Jan 2013 03:31:04 +0000 | From | Al Viro <> | Subject | Re: [PATCH v2 13/76] ARC: Low level IRQ/Trap/Exception Handling |
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On Fri, Jan 18, 2013 at 05:54:27PM +0530, Vineet Gupta wrote:
> + ; --- (Slow Path #3) notify_resume --- > +.Lchk_notify_resume: > + btst r9, TIF_NOTIFY_RESUME > + blnz @do_notify_resume > + b resume_user_mode_begin ; unconditionally back to U mode ret chks > + ; for single exit point from this block
Umm... Can we even get there without NOTIFY_RESUME? Again, there's future-proofing and there's laying minefields - think what will happen if we *do* get there with some bit in _TIF_WORK_MASK that isn't recognized by any of these cases. Looping forever?
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