K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2010-11-05T06:42:30.142700Z
K 7
svn:log
V 526
Merge mutex link code from libthr.user_requeue.
Now following the change in kernel, we use UMUTEX_SIMPLE bit flag to avoid
use thread id from process-private mutex, so we don't need to link mutex
into list, this saves some cycles. Not that for priority-protect mutex, we
still need to link it, because we should restore correct priority after
unlocking a such kind of mutex. Also the priority-inhertied mutex needs to
be linked, because we still use thread ID as lock-word.
The simplest mutex is now a bit faster then before.

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