Github user PSUdaemon commented on the pull request:
https://github.com/apache/trafficserver/pull/502#issuecomment-202990616
This kinda feels like it should be three separate PR's.
f304c50a2c00d7d711015c981b2007dacdf159b7 - seems probably ok, simply
because if it's wrong it won't affect many people. Ideally I think CK++ should
supersede this though.
9d13995ce3a5e26ef80e54b629daba538c0ec87f - I think I see what you are doing
here, but I don't know enough about the cache internals to know if this is OK.
@SolidWallOfCode thought it seemed ok, but was concerned about HostDB
interaction. Also seems like maybe we can say this should be rounded up to a
multiple of page size rather than this special case treatment.
96656663b07f6da8204f3edbb392bf3d55b05398 - Can you explain the need for
this? Seems like we should not write our own spinlock implementation. Perhaps
we can borrow one of the 8 implementations libck has. And this also seems like
a one off case that can be made more generic. I don't really like the #ifdef
around everything. I think it would be better to have a mutex macro that we can
override with whatever method we want. For example, cohort locks might be
better for us.
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