- struct timeval time is gone
time.tv_sec -> time_second
- struct timeval mono_time is gone
mono_time.tv_sec -> time_uptime
- access to time via
{get,}{micro,nano,bin}time()
get* versions are fast but less precise
- support NTP nanokernel implementation (NTP API 4)
- further reading:
Timecounter Paper: http://phk.freebsd.dk/pubs/timecounter.pdf
NTP Nanokernel: http://www.eecis.udel.edu/~mills/ntp/html/kern.html
if readdisklabel() returned an error.
sdopen(): Return an error if sdgetdisklabel() returns an error. This prevents
a crash in spec_open() (and possibly elsewhere) if a sd device is detached in
the middle of sdopen().
- use vmspace rather than proc or lwp where appropriate.
the latter is more natural to specify an address space.
(and less likely to be abused for random purposes.)
- fix a swdmover race.
management to be passed in mmc_discinfo's device capabilities.
When a device reports support for this the hardware will automatically
remap sectors on read- or write-errors. CD-MRW, DVD+MRW, DVD-RAM and BR-RE
support these.
ioctl's and their structures are currenly hidden from inclusion for normal
userland applications to allow the MMC abstraction interface to mature
first.
Its useage is mainly for applications dedicated to handling and processing
SCSI MMC compliant devices and their media. Examples of these are CDs, DVDs
and comparable optical devices but also some magnetic swapable devices that
present themselves as a SCSI MMC compliant device.
Its current use is currently the to be committed in-kernel UDF filingsystem
and its userland tools.
current recorded extent and not the complete maximum extent of the disc.
An empty CD/DVD disc is seen as having an invalid length and given 800 Mb
size. This makes it possible to write to a CD-R using `dd' as some tend to
do.
However when an extent is recorded the initial recorded length is seen as
valid and is thus set as absolute upperbound to read and write actions
preventing extention of the disc.
Committed after consultation on tech-kern with a positive advice by Manuel
Bouyer.
TOC reading. Note that the external interfaces haven't changed. Only the
formatted toc is requestable.
The read msinfo command hasn't been changed in this patch though it could
become more clever using the CD_TOC_MSINFO format.
so don't support the SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL command.
When an "Illegal field in CDB" is reported for this command, mark the
device as non-removable (which is always true for USB keys from the SCSI
point of view), print a message and ignore the error.
For DIOCLOCK, return ENOTTY if the device is not removable instead of
trying a command which will fail.
Fix a problem reported by Hubert Feyrer for some USB umass devices, patch
tested by him.
shouldn't claim it either, but a buggy software shouldn't be able to crash
the kernel anyway). Should fix port-sparc64/31925 by Johan A.van Zanten
(which should really be kern/31925).
Analysed and patch tested by Martin Husemann.
in some drivers including wd and scsi.
- physio: if a caller provided a buf, stick to use it
because some drivers use it as an identifier.
- sprinkle simple_locks.
- scsistrategy: rather than issueing an async request and
waiting for its completion, simply issue a sync request.
the way to wait for the completion had an assumption that
B_CALL is never used. it isn't the case after the recent
physio() changes.
pointed/analyzed/tested by Martin Husemann.
- 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)
standard scheme:
if (<configured> != <wildcard> && <configured> != <real>)
then fail
else
ask device match function
This is handled by config_stdsubmatch() now.
explicitely by a plain integer array
the length in now known to all relevant parties, so this avoids
duplication of information, and we can allocate that thing in
drivers without hacks
