to verify that the device is at least as big as the superblock claims
the filesystem is supposed to be, and if it's not then fail the mount.
this should help reduce the type of confusion reported in PR 13228.
back in rev. 1.51, bread() and breadn() were changed to assume that
if B_DONE is set on a buffer returned by bio_doread(), that the buffer
must have already been in the cache, and thus the overall bread() should
return success. but if the requested buffer is not in the cache and
is past the end of the device, bounds_check_with_label() will set B_ERROR
on the buffer and the caller will call biodone(), which will cause bread()
to think the buffer was already in the cache and thus return success.
to fix this, undo rev. 1.51 and instead have biowait() treat both B_DONE
and B_DELWRI as indicators that it doesn't need to sleep waiting for an
i/o to complete.
clean and without writable mappings. if we try to flush dirty pages past
EOF to the server when NMODIFIED is clear, we'll update the attrcache before
doing the write, which will try to free the pages past EOF and deadlock.
to deal with this, we write-protect pages before we send them to the server,
and restrict ourselves to creating read-only mappings if NMODIFIED isn't set.
score another one for enami.
multi-port cards (which need the shared-rom/intr stuff) and single-port cards
(which must not have it). previously we enabled sharing for all adaptec cards,
which caused problems if you had multiple single-port cards on the same PCI bus.
of the cache in a static table. Note that the table isn't complete --
contributions of cache details for CPUs whose data sheets I haven't got are
welcome.
use "cp" instead of "ncp" as a temporary pointer into the SROM.
we still need the value of ncp here, it points to the next media block.
(update the copy of this code in tlp_21142_reset() just 'cause.)
this makes the BNC port on the Adaptec ANA-6911A work.
normal case, and in the polling or "no thread yet" cases:
don't return an error from scsipi_complete(), as the error should already have
been handled in scsipi_complete() and eventually periph driver callbacks.
Should fix kern/15190.
become ippp (ISDN ppp) and irip (ISDN raw IP). The character device now
are called: /dev/isdn (isdnd <-> kernel communication), /dev/isdnctl (dialing
and other control), /dev/isdntrc* (tracing), /dev/isdnbchan* (raw B channel
access, i.e. for user land PPP) and /dev/isdntel* (telephone devices, i.e.
for answering machines).
audio accelerators.
Mixing is done in hardware by the ASSP, but is limited to 4 simultaneous
channels due to the restricted "minisrc" image that we are currently
working with.
Due to limitations in the audio subsystem, I'm currently attaching multiple
'audio' devices to 'esa', one for each voice. Because of this hack, the
default ESA_NUM_VOICES is 1.
simonb