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3.0 and RCU: what went wrong

3.0 and RCU: what went wrong

Posted Jul 30, 2011 5:19 UTC (Sat) by cladisch (✭ supporter ✭, #50193)
In reply to: 3.0 and RCU: what went wrong by pr1268
Parent article: 3.0 and RCU: what went wrong

local_irq_save() is a macro which disables interrupts on the local CPU and saves the old value of the interrupt flag into its parameter.

Not using a pointer is a little bit more efficient when accessing it from inline assembler.


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