PREEMPT_RT needs to annotate spinlocks which cannot be converted to
sleeping locks.
The best name raw_spinlock is already taken by the low level
architecture implementations. We tried to come up with a good name for
those locks but none of the naming suggestions was really great.
Linus finally suggested to cleanup the name space and rename the low
level locks in the architecture code to arch_spinlock.
The following patch series contains:
- the name space cleanup
- the new raw_spinlock implementation
- annotation of the most important locks
A git version of the series can be found here:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip rt/locking
Thanks,
tglx
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