| History log of /src/sys/kern/sys_pset.c |
| Revision | | Date | Author | Comments |
| 1.24 |
| 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.
|
| 1.23 |
| 21-Feb-2020 |
joerg | Explicitly cast pointers to uintptr_t before casting to enums. They are
not necessarily the same size. Don't cast pointers to bool, check for
NULL instead.
|
| 1.22 |
| 21-Nov-2019 |
ad | branches: 1.22.2;
Simplify pset locking, making it easier to sync with LWP creation, etc.
|
| 1.21 |
| 09-Dec-2018 |
mlelstv | Handle the case when a CPU is assigned to a set it is already a member of.
Previously this would trigger an assertion failure.
|
| 1.20 |
| 03-Sep-2018 |
riastradh | Rename min/max -> uimin/uimax for better honesty.
These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.
HOWEVER! Some subsystems have
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.
To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.
I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:
cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))
It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.
Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)
|
| 1.19 |
| 30-Jul-2015 |
maxv | branches: 1.19.16; 1.19.18;
Don't forget to unlock the LWP.
ok rmind@
|
| 1.18 |
| 25-Feb-2014 |
pooka | branches: 1.18.4; 1.18.6;
Ensure that the top level sysctl nodes (kern, vfs, net, ...) exist before
the sysctl link sets are processed, and remove redundancy.
Shaves >13kB off of an amd64 GENERIC, not to mention >1k duplicate
lines of code.
|
| 1.17 |
| 07-Aug-2011 |
rmind | branches: 1.17.2; 1.17.8; 1.17.12; 1.17.16;
Remove LW_AFFINITY flag and fix some bugs affinity mask handling.
|
| 1.16 |
| 07-Aug-2011 |
rmind | Add kcpuset(9) - a reworked dynamic CPU set implementation for kernel.
Suitable for use during the early boot. MD and other implementations
should be replaced with this interface.
Discussed on: tech-kern@
|
| 1.15 |
| 01-Jul-2010 |
rmind | Remove pfind() and pgfind(), fix locking in various broken uses of these.
Rename real routines to proc_find() and pgrp_find(), remove PFIND_* flags
and have consistent behaviour. Provide proc_find_raw() for special cases.
Fix memory leak in sysctl_proc_corename().
COMPAT_LINUX: rework ptrace() locking, minimise differences between
different versions per-arch.
Note: while this change adds some formal cosmetics for COMPAT_DARWIN and
COMPAT_IRIX - locking there is utterly broken (for ages).
Fixes PR/43176.
|
| 1.14 |
| 25-Apr-2010 |
ad | MAXCPUS -> maxcpus
|
| 1.13 |
| 02-Oct-2009 |
elad | branches: 1.13.2; 1.13.4;
Move psets security policy back to the subsystem and keep suser logic only
in the suser secmodel code.
|
| 1.12 |
| 03-Mar-2009 |
rmind | lwp_create: fix the locking bugs on affinity ingerition path (mea culpa).
pset_assign: traverse the list of LWPs safely.
sched_setaffinity: free cpuset (unused path) outside the lock.
Reviewed (with feedback) by <ad>.
|
| 1.11 |
| 23-Jan-2009 |
rmind | branches: 1.11.2;
sys__pset_bind: obviously, sched_takecpu() should take "t" LWP, not "l".
|
| 1.10 |
| 20-Jan-2009 |
rmind | - Make thread-affinity and processor-set interfaces mutually exlusive.
- pset_assign: when CPU is assigned, migrate out all LWPs from it.
|
| 1.9 |
| 30-Sep-2008 |
rmind | branches: 1.9.2; 1.9.4;
- Schedule bound threads even if CPU is offline. Might be revisited later,
when decision what to do with already bound threads will be made.
- Do not allow to assign offline CPU to the processor-set.
Quick fix for PR/39349.
|
| 1.8 |
| 22-Jun-2008 |
ad | branches: 1.8.2;
- Ensure that at least one cpu stays in the default pset, otherwise the
system will lock up.
- Use cpu_lock, there's no need for a seperate psets_lock.
- Add a sysctl to return the list of psets as a string.
|
| 1.7 |
| 26-May-2008 |
rmind | branches: 1.7.2;
Adjust and thus unify my license.
|
| 1.6 |
| 24-Apr-2008 |
ad | branches: 1.6.2; 1.6.4;
Merge proc::p_mutex and proc::p_smutex into a single adaptive mutex, since
we no longer need to guard against access from hardware interrupt handlers.
Additionally, if cloning a process with CLONE_SIGHAND, arrange to have the
child process share the parent's lock so that signal state may be kept in
sync. Partially addresses PR kern/37437.
|
| 1.5 |
| 24-Apr-2008 |
ad | Network protocol interrupts can now block on locks, so merge the globals
proclist_mutex and proclist_lock into a single adaptive mutex (proc_lock).
Implications:
- Inspecting process state requires thread context, so signals can no longer
be sent from a hardware interrupt handler. Signal activity must be
deferred to a soft interrupt or kthread.
- As the proc state locking is simplified, it's now safe to take exit()
and wait() out from under kernel_lock.
- The system spends less time at IPL_SCHED, and there is less lock activity.
|
| 1.4 |
| 30-Jan-2008 |
elad | branches: 1.4.2; 1.4.8; 1.4.10; 1.4.12;
Use proper kauth(9) actions/requests for native scheduler stuff and the
recently introduced processor-sets.
Discussed with and okay rmind@, yamt@, and christos@.
|
| 1.3 |
| 24-Jan-2008 |
rmind | Fix the return values to conform the standard and/or be compatible with
other systems. Reported by <drochner>.
|
| 1.2 |
| 15-Jan-2008 |
yamt | branches: 1.2.2; 1.2.4;
sys__pset_bind: don't leave pset busy.
|
| 1.1 |
| 15-Jan-2008 |
rmind | Implementation of processor-sets, affinity and POSIX real-time extensions.
Add schedctl(8) - a program to control scheduling of processes and threads.
Notes:
- This is supported only by SCHED_M2;
- Migration of LWP mechanism will be revisited;
Proposed on: <tech-kern>. Reviewed by: <ad>.
|
| 1.2.4.3 |
| 04-Feb-2008 |
yamt | sync with head.
|
| 1.2.4.2 |
| 21-Jan-2008 |
yamt | sync with head
|
| 1.2.4.1 |
| 15-Jan-2008 |
yamt | file sys_pset.c was added on branch yamt-lazymbuf on 2008-01-21 09:46:25 +0000
|
| 1.2.2.2 |
| 19-Jan-2008 |
bouyer | Sync with HEAD
|
| 1.2.2.1 |
| 15-Jan-2008 |
bouyer | file sys_pset.c was added on branch bouyer-xeni386 on 2008-01-19 12:15:25 +0000
|
| 1.4.12.2 |
| 04-Jun-2008 |
yamt | sync with head
|
| 1.4.12.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.4.10.2 |
| 23-Mar-2008 |
matt | sync with HEAD
|
| 1.4.10.1 |
| 30-Jan-2008 |
matt | file sys_pset.c was added on branch matt-armv6 on 2008-03-23 02:05:00 +0000
|
| 1.4.8.3 |
| 05-Oct-2008 |
mjf | Sync with HEAD.
|
| 1.4.8.2 |
| 29-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.4.8.1 |
| 02-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.4.2.2 |
| 18-Feb-2008 |
mjf | Sync with HEAD.
|
| 1.4.2.1 |
| 30-Jan-2008 |
mjf | file sys_pset.c was added on branch mjf-devfs on 2008-02-18 21:06:47 +0000
|
| 1.6.4.2 |
| 10-Oct-2008 |
skrll | Sync with HEAD.
|
| 1.6.4.1 |
| 23-Jun-2008 |
wrstuden | Sync w/ -current. 34 merge conflicts to follow.
|
| 1.6.2.3 |
| 11-Aug-2010 |
yamt | sync with head.
|
| 1.6.2.2 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.6.2.1 |
| 04-May-2009 |
yamt | sync with head.
|
| 1.7.2.1 |
| 27-Jun-2008 |
simonb | Sync with head.
|
| 1.8.2.1 |
| 19-Oct-2008 |
haad | Sync with HEAD.
|
| 1.9.4.3 |
| 08-Mar-2009 |
snj | Pull up following revision(s) (requested by rmind in ticket #546):
sys/kern/kern_lwp.c: revision 1.128
sys/kern/sys_pset.c: revision 1.12
sys/kern/sys_sched.c: revision 1.33
lwp_create: fix the locking bugs on affinity ingerition path (mea culpa).
pset_assign: traverse the list of LWPs safely.
sched_setaffinity: free cpuset (unused path) outside the lock.
Reviewed (with feedback) by <ad>.
|
| 1.9.4.2 |
| 26-Jan-2009 |
snj | Pull up following revision(s) (requested by rmind in ticket #312):
sys/kern/sys_pset.c: revision 1.11
sys__pset_bind: obviously, sched_takecpu() should take "t" LWP, not "l".
|
| 1.9.4.1 |
| 22-Jan-2009 |
snj | Pull up following revision(s) (requested by rmind in ticket #291):
lib/libpthread/affinity.3: revision 1.4
lib/librt/pset.3: revision 1.8
sys/kern/sys_pset.c: revision 1.10
sys/kern/sys_sched.c: revision 1.32
- Make thread-affinity and processor-set interfaces mutually exlusive.
- pset_assign: when CPU is assigned, migrate out all LWPs from it.
|
| 1.9.2.2 |
| 28-Apr-2009 |
skrll | Sync with HEAD.
|
| 1.9.2.1 |
| 03-Mar-2009 |
skrll | Sync with HEAD.
|
| 1.11.2.1 |
| 13-May-2009 |
jym | Sync with HEAD.
Commit is split, to avoid a "too many arguments" protocol error.
|
| 1.13.4.2 |
| 03-Jul-2010 |
rmind | sync with head
|
| 1.13.4.1 |
| 30-May-2010 |
rmind | sync with head
|
| 1.13.2.2 |
| 17-Aug-2010 |
uebayasi | Sync with HEAD.
|
| 1.13.2.1 |
| 30-Apr-2010 |
uebayasi | Sync with HEAD.
|
| 1.17.16.1 |
| 18-May-2014 |
rmind | sync with head
|
| 1.17.12.2 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.17.12.1 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.17.8.1 |
| 15-Nov-2015 |
bouyer | Pull up following revision(s) (requested by oster in ticket #1320):
sys/kern/sys_pset.c: revision 1.19
Don't forget to unlock the LWP.
ok rmind@
|
| 1.17.2.1 |
| 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")
|
| 1.18.6.1 |
| 22-Sep-2015 |
skrll | Sync with HEAD
|
| 1.18.4.1 |
| 06-Aug-2015 |
snj | Pull up following revision(s) (requested by maxv in ticket #912):
sys/kern/sys_pset.c: revision 1.19
Don't forget to unlock the LWP.
ok rmind@
|
| 1.19.18.2 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
| 1.19.18.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.19.16.2 |
| 26-Dec-2018 |
pgoyette | Sync with HEAD, resolve a few conflicts
|
| 1.19.16.1 |
| 06-Sep-2018 |
pgoyette | Sync with HEAD
Resolve a couple of conflicts (result of the uimin/uimax changes)
|
| 1.22.2.1 |
| 29-Feb-2020 |
ad | Sync with head.
|
