ppc64 xics.c: what is smp_threads_ready exactly used for?
From: Adrian Bunk
Date: Sat Jan 15 2005 - 23:35:20 EST
Hi Anton,
during a cleanup, I stumbled upon the following:
arch/ppc64/kernel/smp.c (in 2.6.11-rc1-mm1) says:
/* XXX fix this, xics currently relies on it - Anton */
smp_threads_ready = 1;
arch/ppc64/kernel/xics.c is the _only_ place in the whole kernel where
smp_threads_ready is actually used, and this is the _only_ place where
smp_threads_ready ever changes it's value on ppc64.
I have to admit I'm a bit lost in the sequence of function calls on
ppc64. Is it possible to make any assumptions about the ordering of the
assignment and the usage of smp_threads_ready?
TIA
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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