git: kernel - Optimize the x86-64 lwbuf API
dillon at apollo.backplane.com
Mon Jan 24 18:40:27 PST 2011
:The optimization is cute, almost devolves this into an assignment, but
:this new API is quite terrible imo, there must be a cleaner way to do
It's not the best API in the world, the lwkt_token code used a
similar API for a long time (passing the address of a stack-declared
structure to the functions) which made it more complicated than
necessary, but I don't think lwkt_token's solution (a per-thread
array of token pointers) will work for lwbufs.
Despite the API the actual implementation is ultra fast, even
for i386 which doesn't use the stack-declared structure.
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