Hi! On 01:07 Thu 19 Aug , Parmenides wrote: > Hi, > > For a critical section protected by a spin lock, kernel preemption is > disabled explicitly, probably to make the critical section atomic. > But, suppose that an interrupt occures in this critical section, > allowing interrupts can wreck the atomicity. So, why don't we disable > interrupts as a critical section is executing? When using spinlocks interrupts are disabled, because not doing so would be completely broken. -Michi -- programing a layer 3+4 network protocol for mesh networks see http://michaelblizek.twilightparadox.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
