f106a637c6
touched any user-space address recently. This is efficient for things that stay in the kernel for a while, waking up to handle some I/O then going back to sleep (i.e. nfsd). If and when such a process returns to user-mode, it will fault and be given a real context at that time. This also makes context switch faster, because all we need to do there for the MMU is slam the context register. |
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