Re: [patch] Real-Time Preemption, -RT-2.6.11-rc3-V0.7.38-01

From: Ingo Molnar
Date: Fri Mar 11 2005 - 05:01:59 EST

* Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> > The short term fix is probably to put back the preempt_disables, the long
> > term is to get rid of these stupid bit_spin_lock busy loops.
> Doing a quick search on the kernel, it looks like only kjournald uses
> the bit_spin_locks. I'll start converting them to spinlocks. The use
> seems to be more of a hack, since it is using bits in the state field
> for locking, and these bits aren't used for anything else.

yeah. bit-spinlocks are really a hack.

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