jhb 72cdd6ef99 Fix a sign bug that caused adaptive spinning in sx_xlock() to not work
properly.  Among other things it did not drop Giant while spinning
leading to livelocks.

Reviewed by:	rookie, kib, jmallett
MFC after:	3 days
2010-06-08 16:17:47 +00:00
..
2010-05-24 07:04:00 +00:00
2010-05-24 16:41:05 +00:00
2010-06-02 17:27:23 +00:00
2010-06-08 03:39:31 +00:00
2010-05-24 16:27:47 +00:00