Poul-Henning Kamp 0f76d6d822 Finally give CCD the disk mini-layer treatment: ... CAUTION: Previously CCD would be different from all other disks in the system in that there were no "ccd0" device, only a "ccd0c" device. This is no longer so after this commit. If you access a ccd device through the "/dev/ccd0c" device _and_ have not actually put a BSD disklabel on the device, you will have to use the name "/dev/ccd0". If your CCD device contains a BSD disklabel there should be no difference. You need to recompile ccdconfig(8) using the changed src/sys/sys/ccdvar.h for the -g "show me" option to work. I have run the regression test I created before I started overhauling CCD and it flags no problems, but this code is mildly evil, so take care. If you would cry if you lost what's on CCD, make a back before you upgrade. Create separate cdevsw for the /dev/ccd.ctl device. Remove the cloning function, the disk-minilayer will do all naming for us. Remove the ccdunit and ccdpart functions and carry the softc pointer in the relevant dev_t's and structures. Release all memory when a CCD device is unconfigured, previously the softc would linger behind. Remove all traces of BSD disklabel fiddling code. Remove ccdpsize, the disk mini-layer does this for us. Don't allocate memory with M_WAITOK in ccdstrategy(). Remove boundary checks which the disk mini-layer does for us. Don't allocate space for more than 2 ccdbuf, RAID was never implemented. NB: I have not tried to address any of the preexisting ailments of CCD.		2003-01-19 15:00:58 +00:00
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ccd.c	Finally give CCD the disk mini-layer treatment:	2003-01-19 15:00:58 +00:00