lock the inpcb and use a local stack variable to copy to/from userspace
so that sooptcopyin()/sooptcopyout() aren't called while holding an
rwlock.
While here, fix a bug in which a failed sooptcopyin() might lead to
partially consistent ICMPv6 filters on the socket by not ignoring the
error returned by sooptcopyin().
MFC after: 2 weeks
using the passed arguments explicitly and unconditionally rather than
testing them and calling panic(). The result is the same but easier
to read.
MFC after: 3 days
- When a cpuset is applied to a thread, walk the cpuset to see if it is a
"full" cpuset (includes all available CPUs). If not, set a new
TDS_AFFINITY flag to indicate that this thread can't run on all CPUs.
When inheriting a cpuset from another thread during thread creation, the
new thread also inherits this flag. It is in a new ts_flags field in
td_sched rather than using one of the TDF_SCHEDx flags because fork()
clears td_flags after invoking sched_fork().
- When placing a thread on a runqueue via sched_add(), if the thread is not
pinned or bound but has the TDS_AFFINITY flag set, then invoke a new
routine (sched_pickcpu()) to pick a CPU for the thread to run on next.
sched_pickcpu() walks the cpuset and picks the CPU with the shortest
per-CPU runqueue length. Note that the reason for the TDS_AFFINITY flag
is to avoid having to walk the cpuset and examine runq lengths in the
common case.
- To avoid walking the per-CPU runqueues in sched_pickcpu(), add an array
of counters to hold the length of the per-CPU runqueues and update them
when adding and removing threads to per-CPU runqueues.
MFC after: 2 weeks
revision and (on Prism cards) the primary firmware revision via
sysctl. Move the printing of this information under bootverbose,
since it is relatively easy to get to it now.
mapping to 4KB page mappings when the specified attribute change only
applies to a portion of the 2MB page. Previously, in such cases,
pmap_change_attr() gave up and returned an error.
Submitted by: Magesh Dhasayyan
- Check if panicstr isn't set, if it is ignore the lock. This helps to avoid
confusion, because lockmgr is a no-op when panicstr isn't NULL, so
asserting anything at this point doesn't make sense and can just race with
other panic.
Discussed with: kib
(Other more specific related options will follow)
This allows one to set multiple p2p links to the same place
and select which to use by having each in different FIBS.
turns out some devices do this and since we otherwise validate the station
is associated and don't use the aid for anything being lenient here allows
them to function
Submitted by: Chris Zimmermann
MFC after: 2 weeks
This gives significant performance improvements when many raw sockets used.
Benchmarks of mpd handeling 1000 simultaneous PPTP connections show up to 50%
performance boost. With higher number of connections benefit becomes even
bigger. PopTop snd others should also get some benefits.
the beginning. There's a race in the shared interrutp case. If
another interrupt happens after the interrupt is setup, then we'd try
to lock an uninitialized mutex. In addition, if we bailed out due to
a too old version of firmware, we'd leave the interrupt enabled with
all the fun that ensues....
