5957b26149
Change the definition of a buffer queue so that bufqdisksort can properly deal with bordered writes. Add inline functions for accessing buffer queues. This should be considered an opaque data structure by clients. callout.h: New callout implementation. device.h: Add support for CAM interrupts. disk.h: disklabel.h: tqdisksort->bufqdisksort kernel.h: Add new configuration entries for configuration hooks and calling cpu_rootconf and cpu_dumpconf. param.h: Add a priority for sleeping waiting on config hooks. proc.h: Update for new callout implementation. queue.h: Add TAILQ_HEAD_INITIALIZER from NetBSD. systm.h: Add prototypes for cpu_root/dumpconf, splcam, splsoftcam, etc..