4 Commits

Author	SHA1	Message	Date
Frans Kaashoek	67702cf706	Checkpoint switching to per-process locks, in attempt clarify xv6's ... locking plan, which is a difficult to understand because ptable lock protects many invariants. This implementation has a bug: once in a while xv6 unlocks a proc lock that is locked by another core.	2019-07-02 09:14:47 -04:00
Robert Morris	535ac52efa	oops, don't hold mycpu() result across intr_off()	2019-07-01 17:54:41 -04:00
Robert Morris	46744c4a13	for spinlocks, use gcc intrinsics, but say what they compile to	2019-06-13 10:00:50 -04:00
Robert Morris	5753553213	separate source into kernel/ user/ mkfs/	2019-06-11 09:57:14 -04:00