Re: smp overhead, and rwlocks considered harmful

Anton Blanchard (anton@samba.org)
Sun, 23 Mar 2003 14:55:23 +1100



> One thing is noteworthy: ia32's read_unlock() is buslocked, whereas
> spin_unlock() is not.

Dont forget bitops/atomics used as spinlocks like the rmap pte chain lock.

Anton
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