the original code since if fullgroups was empty and partgroups wasn't, we
would not clean up partgroups (pointed out by yamt). Well, this one has
different semantics from the original, they are the correct ones I think..
if the target thread is a zombie.
in all the functions that didn't do so already, verify a pthread_t before
dereferencing it (under #ifdef ERRORCHECK, since these checks are not
mandated by the standard).
clean up some debugging stuff.
expensive, and pointless. As elsewhere in the kernel (and as approved
under FIPS-140-2 by multiple test labs, incidentally) we use arc4 to
generate IVs here; there is no benefit to their being cryptographically
strong so long as there is a sufficient Hamming distance between them.
call pthread__start() if it hasn't already been called. this avoids
an internal assertion from the library if these routines are used
before any threads are created and they need to sleep.
fixes PR 20256, PR 24241, PR 25722, PR 26096.
- rather than embedding bufq_state in driver softc,
have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
from sys/bufq.h to sys/bufq_impl.h.
(is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c. (not tested)
and 795x. This was present in the driver before, but disabled due to
problems with the actual randomness of generated numbers on the
ubiquitious 7900-series parts. The code here is far, far more
conservative than anyone else's driver for this RNG is -- but I
believe that conservatism is called for, because the 79xx RNG
design is missing a number of pieces from Hifn's "reference" 6500
RNG, and thus the numbers it generates must be treated with some
care.
Support for the 7811 RNG (which is a full-fledged 6500 type
generator) is pretty much the same here as in other variants of
this driver, except that it uses Hifn's "worst case" estimate of
actual entropy per output bit, so it will accumulate bits much
more slowly. The 7811 support is untested.
