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functions, otherwise if we get preempted after checking whether a certain pmap is active on the current CPU but before disabling interrupts we might operate on an outdated state as the pmap might have been deactivated in the meantime. As the same issue may arises when the TLB demap function is interrupted by a TLB demap IPI, just entering a critical section before the check isn't sufficient so we have to fully disable interrupts instead. MFC after: 3 days |
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central | ||
compile | ||
conf | ||
ebus | ||
fhc | ||
include | ||
isa | ||
pci | ||
sbus | ||
sparc64 |