On Sun, 23 Jan 2011, Russell King - ARM Linux wrote:

On Mon, Jan 17, 2011 at 07:21:40PM +0000, Russell King - ARM Linux wrote:

quoted

Switch the set/clear/change bitops to use the word-based exclusive
operations, which are only present in a wider range of ARM architectures
than the byte-based exclusive operations.

Signed-off-by: Russell King <redacted>

As only one person replied to this patch with test information, I'm
not happy to push this into -rc, and hence that prevents it going into
-stable too.  

At least another person did post results:

http://mid.gmane.org/20110117094602.GA2622 at pulham.picochip.com
http://mid.gmane.org/20110117110308.GC2622 at pulham.picochip.com

That means omap2plus_defconfig .38 mainline kernels
(including -stable) will remain potentially dangerous when run on
SMP capable hardware.

I must admit that this series looks a bit large for stable IMHO.  I 
think that the fix for stable should limit itself only to prevent SMP 
from being selected if anything else than CPU_32v6K is selected.

This looks perfectly reasonable for 2.6.38-rc to me though.


Nicolas