- Restructure selscan() and selrescan() to avoid producing extra selfps
when we have a fd in multiple sets. As described below multiple selfps
may still exist for other reasons.
- Make selrescan() tolerate multiple selfds for a given descriptor
set since sockets use two selinfos per fd. If an event on each selinfo
fires selrescan() will see the descriptor twice. This could result in
select() returning 2x the number of fds actually existing in fd sets.
Reported by: mgleason@ncftp.com
Now that make_dev() doesn't require unit numbers to be unique, there is
no need to use an unrhdr here to generate the numbers. Remove the entire
init-routine, because it is optional.
pointers to the callout handler just before and just after the callout
it invoked. I attempted to do this in a manner congruent to tracing in
Solaris's callout mechanism, but couldn't quite use the same names due
to convention and syntax differences.
Example DTrace script to generate a distribution graph of callout
execution times:
callout_execute:::callout_start
{
self->cstart = timestamp;
}
callout_execute:::callout_end
{
@length = quantize(timestamp - self->cstart);
}
Reviewed by: jb
MFC after: 3 days
that are much larger than expected (given the default size).
Change "smaller files" to "split files" which is more in line
with what "-b" actually does.
PR: 119329
Submitted by: Julian Stacey <jhs@berklix.org>
inside the SYSCTL() macros and thus does not need to be done for
all of the nodes scattered across the source tree.
- Mark the name-cache related sysctl's (including debug.hashstat.*) MPSAFE.
- Mark vm.loadavg MPSAFE.
- Remove GIANT_REQUIRED from vmtotal() (everything in this routine already
has sufficient locking) and mark vm.vmtotal MPSAFE.
- Mark the vm.stats.(sys|vm).* sysctls MPSAFE.
around calls to vlrureclaim() on non-MPSAFE filesystems. Specifically,
vnlru no longer needs Giant for the common case of waking up and deciding
there is nothing for it to do.
MFC after: 2 weeks
make KERNFAST=blah buildkernel
is now a short cut for
make KERNCONF=blah -DKERNFAST buildkernel
This change works for all kernel config files not named "1". I did
that to make sure that
make -DKERNFAST buildkernel
remains the same as
make -DKERNFAST KERNCONF=GENERIC buildkernel
rather than trying to build and configure "1". I've never seen a
kernel config file named "1," so I think this is a good compromise.
This should be a bit useful for users who look at the manpage and
then try to copy data CD-ROM disks using dd. A lot of us know
that bs=2048 is required, but it still manages to cause a bit of
grief to those who haven't heard about it.
PR: bin/130857
Submitted by: Tri Brotoharsono < mail at tribrotoharsono.net >
MFC after: 3 days
rather than a fixed 512... This fixes the mount root problem on at91.
Prior to the SD card reorg, all data transfers were 512 bytes, so we
didn't notice.
the serial port class when we set the devclass since it is now
no-longer a compile time constant. Eliminate the pci include, as it
isn't relevant or necessary.
time constant. This allows us to potentially change it at runtime or
autodetect it early in the boot (the latter being much more likely to
have a good outcome).
