| History log of /src/sys/dev/lockstat.c |
| Revision | | Date | Author | Comments |
| 1.30 |
| 08-Apr-2022 |
andvar | fix various typos, mainly in comments, but also log messages, docs, game text.
|
| 1.29 |
| 27-Feb-2022 |
riastradh | lockstat(4): KNF. No functional change intended.
|
| 1.28 |
| 27-Feb-2022 |
riastradh | lockstat(4): Membar audit.
- Serialize updates to lockstat_enabled, lockstat_dev_enabled, and
lockstat_dtrace_enabled with a new __cpu_simple_lock.
- Use xc_barrier to obviate any need for additional membars in
lockstat_event.
- Use atomic_load/store_* for access that might not be serialized by
lockstat_lock or lockstat_enabled_lock.
|
| 1.27 |
| 23-May-2020 |
ad | Move proc_lock into the data segment. It was dynamically allocated because
at the time we had mutex_obj_alloc() but not __cacheline_aligned.
|
| 1.26 |
| 23-Nov-2019 |
ad | - Increase the default number of buffers, and scale it by ncpu.
- Stop tracing when the device is closed.
|
| 1.25 |
| 01-Jun-2017 |
chs | branches: 1.25.10;
remove checks for failure after memory allocation calls that cannot fail:
kmem_alloc() with KM_SLEEP
kmem_zalloc() with KM_SLEEP
percpu_alloc()
pserialize_create()
psref_class_create()
all of these paths include an assertion that the allocation has not failed,
so callers should not assert that again.
|
| 1.24 |
| 20-Aug-2015 |
christos | include "ioconf.h" to get the 'void <driver>attach(int count);' prototype.
|
| 1.23 |
| 07-Jun-2015 |
matt | This uses CPU_INFO_FOREACH so it really should include <sys/cpu.h>
|
| 1.22 |
| 11-Mar-2015 |
christos | add coverity annotations (variable is volatile so it might have side effects)
|
| 1.21 |
| 09-Mar-2015 |
christos | Introduce a new flag LB_DTRACE for dtrace lockstat events.
Split lockstat_enabled into two parts, one controlled by dtrace called
"lockstat_dtrace_enabled" and one by the lockstat device called
"lockstat_dev_enabled". Create a macro that needs to be called when either
of them changes LOCKSTAT_ENABLED_UPDATE().
|
| 1.20 |
| 08-Mar-2015 |
christos | dtrace bits from riastradh
|
| 1.19 |
| 25-Jul-2014 |
dholland | branches: 1.19.4;
Add d_discard to all struct cdevsw instances I could find.
All have been set to "nodiscard"; some should get a real implementation.
|
| 1.18 |
| 21-Apr-2014 |
chs | increase LOCKSTAT_MAXBUFS, systems with lots of CPUs need more.
|
| 1.17 |
| 16-Mar-2014 |
dholland | branches: 1.17.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.
I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.
|
| 1.16 |
| 10-Dec-2012 |
msaitoh | branches: 1.16.2;
Fix off by one.
|
| 1.15 |
| 28-Apr-2008 |
martin | branches: 1.15.10; 1.15.16; 1.15.24; 1.15.34; 1.15.40; 1.15.44; 1.15.46; 1.15.48;
Remove clause 3 and 4 from TNF licenses
|
| 1.14 |
| 28-Apr-2008 |
ad | Add MI code to support in-kernel preemption. Preemption is deferred by
one of the following:
- Holding kernel_lock (indicating that the code is not MT safe).
- Bracketing critical sections with kpreempt_disable/kpreempt_enable.
- Holding the interrupt priority level above IPL_NONE.
Statistics on kernel preemption are reported via event counters, and
where preemption is deferred for some reason, it's also reported via
lockstat. The LWP priority at which preemption is triggered is tuneable
via sysctl.
|
| 1.13 |
| 04-Jan-2008 |
ad | branches: 1.13.6; 1.13.8; 1.13.10;
Start detangling lock.h from intr.h. This is likely to cause short term
breakage, but the mess of dependencies has been regularly breaking the
build recently anyhow.
|
| 1.12 |
| 20-Dec-2007 |
ad | Use new style memory barriers.
|
| 1.11 |
| 06-Nov-2007 |
ad | branches: 1.11.2; 1.11.6;
Merge from vmlocking.
|
| 1.10 |
| 14-Jul-2007 |
ad | branches: 1.10.6; 1.10.8; 1.10.12; 1.10.14;
- Increase default number of trace buffers to 10000.
- New options:
-f Trace only by calling functions.
-m Merge call sites within unique functions.
-M Merge lock addresses within unique objects.
|
| 1.9 |
| 15-Jun-2007 |
ad | splstatclock, spllock -> splhigh
|
| 1.8 |
| 04-Mar-2007 |
christos | branches: 1.8.2; 1.8.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
|
| 1.7 |
| 15-Feb-2007 |
ad | branches: 1.7.2;
Count the number of CPUs at boot and stash in 'ncpu'. Eventually should
have each CPU register at attach, so we can figure out the topology for
the scheduler.
|
| 1.6 |
| 09-Feb-2007 |
ad | Merge newlock2 to head.
|
| 1.5 |
| 25-Dec-2006 |
ad | branches: 1.5.2;
lockstat: improve reporting slightly, and fix a bug where the command
could spin while resorting lists.
|
| 1.4 |
| 16-Nov-2006 |
christos | __unused removal on arguments; approved by core.
|
| 1.3 |
| 12-Oct-2006 |
xtraeme | Use __unused in function arguments where appropiate. (hi christos)
|
| 1.2 |
| 07-Sep-2006 |
ad | branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
- Add a couple of XXX comments.
- lb->lb_cpu doesn't need to be filled in lockstat_event().
|
| 1.1 |
| 07-Sep-2006 |
ad | Add the 'lockstat' driver, which collects basic information about lock events.
|
| 1.2.8.2 |
| 10-Dec-2006 |
yamt | sync with head.
|
| 1.2.8.1 |
| 22-Oct-2006 |
yamt | sync with head
|
| 1.2.6.2 |
| 14-Sep-2006 |
yamt | sync with head.
|
| 1.2.6.1 |
| 07-Sep-2006 |
yamt | file lockstat.c was added on branch yamt-pdpolicy on 2006-09-14 12:31:26 +0000
|
| 1.2.4.2 |
| 09-Sep-2006 |
rpaulo | sync with head
|
| 1.2.4.1 |
| 07-Sep-2006 |
rpaulo | file lockstat.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:49:09 +0000
|
| 1.2.2.5 |
| 06-Feb-2007 |
ad | Avoid shadowing global 'time'. Noted by mhitch.
k
|
| 1.2.2.4 |
| 12-Jan-2007 |
ad | Sync with head.
|
| 1.2.2.3 |
| 29-Dec-2006 |
ad | Checkpoint work in progress.
|
| 1.2.2.2 |
| 18-Nov-2006 |
ad | Sync with head.
|
| 1.2.2.1 |
| 17-Nov-2006 |
ad | Checkpoint work in progress.
|
| 1.5.2.6 |
| 21-Jan-2008 |
yamt | sync with head
|
| 1.5.2.5 |
| 15-Nov-2007 |
yamt | sync with head.
|
| 1.5.2.4 |
| 03-Sep-2007 |
yamt | sync with head.
|
| 1.5.2.3 |
| 26-Feb-2007 |
yamt | sync with head.
|
| 1.5.2.2 |
| 30-Dec-2006 |
yamt | sync with head.
|
| 1.5.2.1 |
| 25-Dec-2006 |
yamt | file lockstat.c was added on branch yamt-lazymbuf on 2006-12-30 20:47:50 +0000
|
| 1.7.2.1 |
| 12-Mar-2007 |
rmind | Sync with HEAD.
|
| 1.8.4.1 |
| 11-Jul-2007 |
mjf | Sync with head.
|
| 1.8.2.4 |
| 29-Oct-2007 |
ad | Prevent the device from being accessed by an LWP other than the LWP that
first opened it.
|
| 1.8.2.3 |
| 29-Oct-2007 |
ad | lockstat_event: splhigh() before calling curcpu(), since it can change if
the LWP is preempted.
|
| 1.8.2.2 |
| 28-Oct-2007 |
ad | - Use kmem_alloc/kmem_free.
- Simplify locking.
- Mark MPSAFE.
|
| 1.8.2.1 |
| 15-Jul-2007 |
ad | Sync with head.
|
| 1.10.14.3 |
| 18-Feb-2008 |
mjf | Sync with HEAD.
|
| 1.10.14.2 |
| 27-Dec-2007 |
mjf | Sync with HEAD.
|
| 1.10.14.1 |
| 19-Nov-2007 |
mjf | Sync with HEAD.
|
| 1.10.12.1 |
| 13-Nov-2007 |
bouyer | Sync with HEAD
|
| 1.10.8.2 |
| 09-Jan-2008 |
matt | sync with HEAD
|
| 1.10.8.1 |
| 08-Nov-2007 |
matt | sync with -HEAD
|
| 1.10.6.1 |
| 06-Nov-2007 |
joerg | Sync with HEAD.
|
| 1.11.6.2 |
| 08-Jan-2008 |
bouyer | Sync with HEAD
|
| 1.11.6.1 |
| 02-Jan-2008 |
bouyer | Sync with HEAD
|
| 1.11.2.1 |
| 26-Dec-2007 |
ad | Sync with head.
|
| 1.13.10.1 |
| 16-May-2008 |
yamt | sync with head.
|
| 1.13.8.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.13.6.2 |
| 02-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.13.6.1 |
| 05-Apr-2008 |
mjf | - add "file-system DEVFS" and "pseudo-device devfsctl" to conf/std seeing
as these are always needed.
- convert many, many drivers over to the New Devfs World Order. For a
list of device drivers yet to be converted see,
http://www.netbsd.org/~mjf/devfs-todo.html.
- add a new device_unregister_all(device_t) function to remove all device
names associated with a device_t, which saves us having to construct
device names when the driver is detached.
- add a DEV_AUDIO type for devices.
|
| 1.15.48.1 |
| 13-Jan-2013 |
bouyer | Pull up following revision(s) (requested by msaitoh in ticket #1826):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.15.46.1 |
| 17-Dec-2012 |
riz | Pull up following revision(s) (requested by msaitoh in ticket #752):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.15.44.3 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.15.44.2 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.15.44.1 |
| 25-Feb-2013 |
tls | resync with head
|
| 1.15.40.1 |
| 17-Dec-2012 |
riz | Pull up following revision(s) (requested by msaitoh in ticket #752):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.15.34.2 |
| 22-May-2014 |
yamt | sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
|
| 1.15.34.1 |
| 16-Jan-2013 |
yamt | sync with (a bit old) head
|
| 1.15.24.1 |
| 13-Jan-2013 |
bouyer | Pull up following revision(s) (requested by msaitoh in ticket #1826):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.15.16.1 |
| 13-Jan-2013 |
bouyer | Pull up following revision(s) (requested by msaitoh in ticket #1826):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.15.10.1 |
| 13-Jan-2013 |
bouyer | Pull up following revision(s) (requested by msaitoh in ticket #1826):
sys/dev/lockstat.c: revision 1.16
Fix off by one.
|
| 1.16.2.1 |
| 18-May-2014 |
rmind | sync with head
|
| 1.17.2.1 |
| 10-Aug-2014 |
tls | Rebase.
|
| 1.19.4.3 |
| 28-Aug-2017 |
skrll | Sync with HEAD
|
| 1.19.4.2 |
| 22-Sep-2015 |
skrll | Sync with HEAD
|
| 1.19.4.1 |
| 06-Apr-2015 |
skrll | Sync with HEAD
|
| 1.25.10.1 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
