ZFS porting style didn't extend this, instead using a heap of additional
header files that don't get installed.
My intention had been to allow OpenSolaris external code to build on
FreeBSD out of the box (i.e. without a src tree).
Make clear that this is not a good idea when called from
tcp_output()->ipsec_hdrsiz_tcp()->ipsec4_hdrsize_tcp()
as we do not know if IPsec processing is needed at that point.
T_DIRECT filtering so that disk drives can be attached via the
pass driver. Add CAM locking. Don't mark CAM commands as SG64
since the hardware isn't designed to deal with 64-bit passthru
commands. Hopefully the bounce buffer changes that were done
for the management/ioctl interface are robust enough to handle
this deficiency for CAM as well.
- Enable pcbeep control for Acer + ALC268 (nid 29). Give enough (fake)
hints so the parser will grab it and allocate "speaker" control.
- Fix regression while preparing DAC and ADC for multichannel
format. Since playback policy is to output to every possible path,
ensure that each DAC is started.
Reported / Tested by: Guy Brand
Currently, Giant is not too much contented so that it is ok to treact it
like any other mutexes.
Please don't forget to update your own custom config kernel files.
Approved by: cognet, marcel (maintainers of arches where option is
not enabled at the moment)
of some old programs. Since sigval is union type, this change will not have
binary compatibility problem.
MFC: after 3 days
Discussed with: rwatson, glebius
It should just contain the value we want to add, as if we're interrupted
between the add and the str, we will restart from the beginning. Just use
a register we can scratch instead.
MFC After: 1 week
routine. It is not needed as the existing tests for segment coalescing
already handle bounced addresses and it prevents legal segment coalescing
in certain edge cases.
MFC after: 1 week
Reviewed by: scottl
The call should happen with the driver lock held. We don't hold the driver
lock in newstate as it's a separate thread where we can't sleep (and we only
call wpi_cmd in async mode).
Discovered By: Attillo's callout rework
Approved By: mlaier (comentor)
currently, before to spin the turnstile spinlock is acquired and the
waiters flag is set.
This is not strictly necessary, so just spin before to acquire the
spinlock and to set the flags.
This will simplify a lot other functions too, as now we have the waiters
flag set only if there are actually waiters.
This should make wakeup/sleeping couplet faster under intensive mutex
workload.
This also fixes a bug in rw_try_upgrade() in the adaptive case, where
turnstile_lookup() will recurse on the ts_lock lock that will never be
really released [1].
[1] Reported by: jeff with Nokia help
Tested by: pho, kris (earlier, bugged version of rwlock part)
Discussed with: jhb [2], jeff
MFC after: 1 week
[2] John had a similar patch about 6.x and/or 7.x about mutexes probabilly
sends frames up the stack after changing the current channel then
the lookup by ieee channel number may fail leaving a null ptr in
se_chan; if this happens fallback to the channel recorded when the
frame is processed (curchan). Since the frame doesn't contribute
to scan results for the sta this is acceptable.
Reviewed by: thompsa
MFC after: 3 days
1837014 Kernel panics after authentication of an outgoing packet
1836992 Potential bugs in packet auth code (w/patches)
1836967 Kernel panic when using auth rule with keep state
and another reported only to FreeBSD by Andiry (see PR)
PR: kern/118251
Submitted by: Andriy Syrovenko <andriys@gmail.com>
Reviewed by: darrenr
MFC after: 5 days
cast as uint32_t which is defined as unsigned int. gcc doesn't want to
consider that there might not be much difference between an int and
a long on a 32 bit architecture.
vm_pageout_fallback_object_lock() in vm_contig_launder_page() to better
handle a lock-ordering problem. Consequently, trylock's failure on the
page's containing object no longer implies that the page cannot be
laundered.
MFC after: 6 weeks
This has the benefit that rmlocks have proper support for reader recursion
(in contrast to rwlock(9) which could potential lead to writer stravation).
It also means a significant performance gain, eventhough only visible in
microbenchmarks at the moment.
Discussed on: -arch, -net
malloc_type_allocated(..., 0) calls that occur when contigmalloc() has
failed. Eliminate the acquisition and release of the page queues lock
from vm_page_release_contig(). Rename contigmalloc2() to
contigmapping(), reflecting what it does.
as up if at least one of its ports also has a link up. This fixes using
carp+lagg together and any other system that relies on linkstate events.
PR: kern/113956
MFC after: 3 days
the inpcb when there's an inpcb without associated timewait state, and
not unlocking when the inpcb has been freed. This avoids a kernel panic
when tcpdrop(8) is run on a socket in the TIMEWAIT state.
MFC after: 3 days
Reported by: Rako <rako29 at gmail dot com>
should never be moved by one lock to another.
As, luckily, nothing in our tree is using it, axe the function.
This breaks lockmgr KPI, so interested, third-party modules should update
their source code with appropriate replacement.
Ok'ed by: ups, rwatson
MFC after: 3 days
