Patch to optimize "bare" critical sections

John Baldwin jhb at
Tue Nov 23 13:36:46 PST 2004

On Tuesday 23 November 2004 03:00 pm, John Baldwin wrote:
> Basically, I have a patch to divorce the interrupt disable/deferring to
> only happen inside of spinlocks using a new spinlock_enter/exit() API
> (where a spinlock_enter/exit includes a critical section as well) but that
> plain critical sections won't have to do such a thing.  I've tested it on
> i386, alpha, and sparc64 already, and it has also been tested on arm.  I'm
> unable to get a cross-built powerpc kernel to link (linker dies with a
> signal 6), but the compile did finish.  I have cross-compiled ia64 and
> amd64
> successfully, but have not run tested due to ENOHARDWARE.  So, I would
> appreciate it if a few folks could try the patch out on ppc, ia64, and
> amd64 to make sure it works ok.  Thanks.

*cough*  Ahem,

Sorry about that.

John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve"  =

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