Re: atomic_inc and spin_lock_irq

On 18 Dec 2014 at 21:07, Rogelio M. Serrano Jr. wrote: > whats the difference between: > > atomic_inc(&port->count); > > and > > spin_lock_irq(&port->lock); > ++port->count; > spin_unlock_irq(&port->lock); in PaX this kind of change brings the ->count accesses under the coverage of the REFCOUN

Re: atomic_inc and spin_lock_irq

On Thu, 18 Dec 2014 21:07:46 + Rogelio M. Serrano Jr. wrote: > whats the difference between: > > atomic_inc(&port->count); It is intended to atomically increment a variable of a standard size (int/long). See [1] for more information. > and > > spin_lock_irq(&port->lock); > ++port->count; >

atomic_inc and spin_lock_irq

whats the difference between: atomic_inc(&port->count); and spin_lock_irq(&port->lock); ++port->count; spin_unlock_irq(&port->lock); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vge