fix the function pointer and callback mess:
- callback functions return 0 and their result is not checked; make them void.
- there are two types of callbacks and they used to overload their parameters
and the callback structure; separate them into "function" and "value"
callbacks.
- make the wait function signature consistent.

- Change the allocation macros to be more like function calls
- Change sizeof(type) -> sizeof(*variable)
- Use macros for the long buffer length allocations
- Remove "bit polishing" memsets() -- do them only once
- Remove unnecessary casts

Thanks to oster@ for finding bugs and testing.

branches: 1.18.56;
convert parityLogPool.mutex to a kmutex.

convert regionInfo[regionID].mutex to a kmutex.

convert reintMutex to a kmutex.

convert parityLogDiskQueue.mutex to a kmutex/cv.

XXX: some splbio() usage to clean up here

convert RF_CommonLogData_s/RF_ReconMap_s mutex to a kmutex/cv.

branches: 1.13.64; 1.13.70;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.12.14;
un-bitrot some of this code (which is not included by default in kernels),
and make it build again. XXX: Paritylogging bits still won't build.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.10; 1.11.12;
merge ktrace-lwp.

branches: 1.10.4;
nuke trailing whitespace

branches: 1.9.6; 1.9.14; 1.9.16;
Everyone and their dog was using RF_ERRORMSG3 to print out the same
sort of error message, over and over again, in different files.
Rather than having the same text repeated in multiple .o files,
create a couple of little functions to do the printing, and save a
bundle of space. Also improves readability of code.

bcopy -> memcpy. Reviewed by Greg Oster.

branches: 1.7.8;
add RCSIDs

Step 2 of the disentanglement. We now look to <dev/raidframe/*> for
the stuff that used to live in rf_types.h, rf_raidframe.h, rf_layout.h,
rf_netbsd.h, rf_raid.h, rf_decluster,h, and a few other places.
Believe it or not, when this is all done, things will be cleaner.

No functional changes to RAIDframe.

branches: 1.5.6; 1.5.8; 1.5.10;
Nuke: #include "rf_threadid.h".

branches: 1.4.2;
rf_sys.h does not need to be #included in any of these files, and, actually,
is no longer needed at all.

Phase 2 of the RAIDframe cleanup. The source is now closer to KNF
and is much easier to read. No functionality changes.

RAIDframe cleanup, phase 1. Nuke simulator support, user-land driver,
out-dated comments, and other unneeded stuff. This helps prepare
for cleaning up the rest of the code, and adding new functionality.

No functional changes to the kernel code in this commit.

RAIDframe, version 1.1, from the Parallel Data Laboratory at
Carnegie Mellon University. Full RAID implementation, including
levels 0, 1, 4, 5, 6, parity logging, and a few other goodies.
Ported to NetBSD by Greg Oster.

- Change the allocation macros to be more like function calls
- Change sizeof(type) -> sizeof(*variable)
- Use macros for the long buffer length allocations
- Remove "bit polishing" memsets() -- do them only once
- Remove unnecessary casts

Thanks to oster@ for finding bugs and testing.

convert parityLogPool.mutex to a kmutex.

convert regionInfo[regionID].mutex to a kmutex.

convert reintMutex to a kmutex.

convert parityLogDiskQueue.mutex to a kmutex/cv.

XXX: some splbio() usage to clean up here

convert RF_CommonLogData_s/RF_ReconMap_s mutex to a kmutex/cv.

branches: 1.13.64; 1.13.70;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.12.14;
un-bitrot some of this code (which is not included by default in kernels),
and make it build again. XXX: Paritylogging bits still won't build.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.10; 1.11.12;
merge ktrace-lwp.

branches: 1.10.4;
nuke trailing whitespace

branches: 1.9.6; 1.9.14; 1.9.16;
Everyone and their dog was using RF_ERRORMSG3 to print out the same
sort of error message, over and over again, in different files.
Rather than having the same text repeated in multiple .o files,
create a couple of little functions to do the printing, and save a
bundle of space. Also improves readability of code.

bcopy -> memcpy. Reviewed by Greg Oster.

branches: 1.7.8;
add RCSIDs

Step 2 of the disentanglement. We now look to <dev/raidframe/*> for
the stuff that used to live in rf_types.h, rf_raidframe.h, rf_layout.h,
rf_netbsd.h, rf_raid.h, rf_decluster,h, and a few other places.
Believe it or not, when this is all done, things will be cleaner.

No functional changes to RAIDframe.

branches: 1.5.6; 1.5.8; 1.5.10;
Nuke: #include "rf_threadid.h".

branches: 1.4.2;
rf_sys.h does not need to be #included in any of these files, and, actually,
is no longer needed at all.

Phase 2 of the RAIDframe cleanup. The source is now closer to KNF
and is much easier to read. No functionality changes.

RAIDframe cleanup, phase 1. Nuke simulator support, user-land driver,
out-dated comments, and other unneeded stuff. This helps prepare
for cleaning up the rest of the code, and adding new functionality.

No functional changes to the kernel code in this commit.

RAIDframe, version 1.1, from the Parallel Data Laboratory at
Carnegie Mellon University. Full RAID implementation, including
levels 0, 1, 4, 5, 6, parity logging, and a few other goodies.
Ported to NetBSD by Greg Oster.