I've been trying to understand how futexes work looking at the last
dev. kernel. I've not found any docs. Are there any?
P (fast P sem op):
V (fast V sem op):
Futexes need be counting semaphores since there could be WAKEs in
the middle of atomic_decrements and WAITs (not atomic) but I do
not see this in the code. I can't find the kernel counter in the
Can anybody help me?
Many thanks in advance
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