Generally invoked by accident today.
Seen as doing more harm than good.
Who: Len Brown <len.brown@intel.com>
+
+----------------------------
+
+What: IRQF_DISABLED
+When: 2.6.36
+Why: The flag is a NOOP as we run interrupt handlers with interrupts disabled
+Who: Thomas Gleixner <tglx@linutronix.de>