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Jeff Roberson 8d809d5061 Implement per-cpu callout threads, wheels, and locks. 
- Move callout thread creation from kern_intr.c to kern_timeout.c
 - Call callout_tick() on every processor via hardclock_cpu() rather than
   inspecting callout internal details in kern_clock.c.
 - Remove callout implementation details from callout.h
 - Package up all of the global variables into a per-cpu callout structure.
 - Start one thread per-cpu.  Threads are not strictly bound.  They prefer
   to execute on the native cpu but may migrate temporarily if interrupts
   are starving callout processing.
 - Run all callouts by default in the thread for cpu0 to maintain current
   ordering and concurrency guarantees.  Many consumers may not properly
   handle concurrent execution.
 - The new callout_reset_on() api allows specifying a particular cpu to
   execute the callout on.  This may migrate a callout to a new cpu.
   callout_reset() schedules on the last assigned cpu while
   callout_reset_curcpu() schedules on the current cpu.

Reviewed by:	phk
Sponsored by:	Nokia
2008-04-02 11:20:30 +00:00
..
_bus_dma.h
Break out typedefs from bus_dma.h to _bus_dma.h so that we can get the
2006-09-03 00:26:17 +00:00
_iovec.h
…
_lock.h
- Re-implement lock profiling in such a way that it no longer breaks
2007-12-15 23:13:31 +00:00
_mutex.h
Rename the 'mtx_object', 'rw_object', and 'sx_object' members of mutexes,
2007-03-21 21:20:51 +00:00
_null.h
…
_pthreadtypes.h
…
_rmlock.h
Initial checkin for rmlock (read mostly lock) a multi reader single writer
2007-11-08 14:47:55 +00:00
_rwlock.h
Introduce a new rwlocks initialization function: rw_init_flags.
2007-06-26 21:31:56 +00:00
_semaphore.h
Const-qualify ksem_timedwait's parameter abstime as it's only passed in.
2005-10-18 11:46:24 +00:00
_sigset.h
…
_sx.h
Optimize sx locks to use simple atomic operations for the common cases of
2007-03-31 23:23:42 +00:00
_task.h
…
_timespec.h
…
_timeval.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
_types.h
Add cpuset, an api for thread to cpu binding and cpu resource grouping
2008-03-02 07:39:22 +00:00
aac_ioctl.h
Implement FSACTL_LNX_GET_FEATURES and FSACTL_GET_FEATURES ioctls. RAID
2008-03-28 19:07:25 +00:00
acct.h
Increase precision of time values in the process accounting
2007-05-22 06:51:38 +00:00
acl.h
Minor white space tweaks in comments.
2007-03-16 13:39:04 +00:00
agpio.h
…
aio.h
Add aio_fsync() prototype.
2006-03-23 08:47:28 +00:00
alq.h
…
apm.h
Add a partition type for ZFS.
2007-10-21 17:29:06 +00:00
assym.h
…
ata.h
Add a "spindown" facility to ata-disks: If no requests have been received
2008-03-17 10:33:23 +00:00
bio.h
Add a new I/O request - BIO_FLUSH, which basically tells providers below to
2006-10-31 21:11:21 +00:00
bitstring.h
…
blist.h
…
buf.h
b_waiters cannot be adequately protected by the interlock because it is
2008-03-28 12:30:12 +00:00
bufobj.h
- Complete part of the unfinished bufobj work by consistently using
2008-03-22 09:15:16 +00:00
bus_dma.h
BUS_DMA_ISA is left over from Alpha, and is not used in the tree at
2008-03-15 06:44:45 +00:00
bus.h
Implement a BUS_BIND_INTR() method in the bus interface to bind an IRQ
2008-03-20 21:24:32 +00:00
callout.h
Implement per-cpu callout threads, wheels, and locks.
2008-04-02 11:20:30 +00:00
cdefs.h
add __noinline
2008-03-25 21:30:01 +00:00
cdio.h
…
cdrio.h
…
chio.h
…
clist.h
…
clock.h
Better naming of fattime conversion functions, they do convert to timespec
2006-10-24 10:27:23 +00:00
condvar.h
- Pass the priority argument from *sleep() into sleepq and down into
2008-03-12 06:31:06 +00:00
conf.h
Fix two races in the handling of the d_gianttrick for the D_NEEDGIANT
2008-03-17 13:17:10 +00:00
cons.h
Add a cnputs() function to write a string to the console with
2006-11-01 04:54:51 +00:00
consio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
copyright.h
Update to 2008.
2007-12-26 16:45:35 +00:00
cpu.h
Add an interface for drivers to be notified of changes to CPU frequency.
2007-03-26 18:03:29 +00:00
cpuset.h
- Consistently return EDEADLK when presented with a new set that is
2008-03-30 11:31:14 +00:00
ctype.h
…
dataacq.h
…
device_port.h
…
devicestat.h
…
digiio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
dir.h
…
dirent.h
o Re-word a comment.
2006-08-16 09:34:56 +00:00
disk.h
Implement three new ioctls that can be used with GEOM provider:
2007-05-05 17:02:19 +00:00
disklabel.h
Add missing comma.
2008-03-12 18:25:47 +00:00
diskmbr.h
…
diskpc98.h
…
dkstat.h
…
domain.h
Move definition of UNIX domain socket protosw and domain entries from
2006-08-07 12:02:43 +00:00
dvdio.h
…
elf32.h
Convert types 'Elf{32,64}_Nhdr' into aliases of the generic 'Elf_Note'
2006-10-17 05:43:30 +00:00
elf64.h
Convert types 'Elf{32,64}_Nhdr' into aliases of the generic 'Elf_Note'
2006-10-17 05:43:30 +00:00
elf_common.h
Add extra visibility definitions.
2007-12-02 00:05:18 +00:00
elf_generic.h
Implement ELF symbol versioning using GNU semantics. This code aims
2005-12-18 19:43:33 +00:00
elf.h
Remove _SOLARIS_C_SOURCE compatibility definitions. Unfortunately the
2007-11-28 21:54:46 +00:00
endian.h
…
errno.h
…
eui64.h
…
event.h
When asked to use kqueue, AIO stores its internal state in the
2008-01-24 17:10:19 +00:00
eventhandler.h
Revert previous change - it appears that the limit I was hitting was a
2008-03-19 09:58:25 +00:00
eventvar.h
…
exec.h
…
extattr.h
Revert/re-make previous commit in a manner that maintains hyphenation of
2007-03-16 19:18:49 +00:00
fbio.h
…
fcntl.h
Add the libc glue and headers definitions for the *at() syscalls.
2008-03-31 12:14:04 +00:00
fdcio.h
…
file.h
Add a new file descriptor type for IPC shared memory objects and use it to
2008-01-08 21:58:16 +00:00
filedesc.h
Revert UF_OPENING workaround for CURRENT.
2007-05-31 11:51:53 +00:00
filio.h
Implement SEEK_DATA and SEEK_HOLE extensions to lseek(2) as found in
2007-04-05 21:10:53 +00:00
firmware.h
Cleanup and document the implementation of firmware(9) based on
2007-02-15 17:21:31 +00:00
fnv_hash.h
…
gmon.h
Move the PC_TO_I() and KCOUNT() macros so they aren't GUPROF specific
2006-03-29 18:17:03 +00:00
gpt.h
First cut at support for booting a GPT labeled disk via the BIOS bootstrap
2007-10-24 21:33:00 +00:00
hash.h
Fix a compiler warning so hash.h can be included in the kernel. This changes
2007-04-09 22:55:14 +00:00
iconv.h
…
imgact_aout.h
…
imgact_elf.h
Remove kern.elf32.can_exec_dyn sysctl. Instead extend Brandinfo structure
2005-12-26 21:23:57 +00:00
imgact.h
Implement the fexecve(2) syscall.
2008-03-31 12:05:52 +00:00
inflate.h
…
interrupt.h
Simplify the interrupt code a bit:
2008-03-17 22:42:01 +00:00
ioccom.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
ioctl_compat.h
Increase the verbosity of the warning given when this file is used as
2007-04-27 11:19:05 +00:00
ioctl.h
Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)
2006-01-10 09:19:10 +00:00
ipc.h
Make sure we restrict Linux only IPC calls from being executed
2008-02-12 20:55:03 +00:00
ipmi.h
Update the ipmi(4) driver:
2006-09-22 22:11:29 +00:00
jail.h
Implement functionality I called 'jail services'.
2007-04-05 23:19:13 +00:00
joystick.h
…
kbio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
kdb.h
Add a new 'why' argument to kdb_enter(), and a set of constants to use
2007-12-25 17:52:02 +00:00
kenv.h
…
kernel.h
Remove trailing ';' from C_SYSINIT() macro definition, in keeping
2008-03-16 11:01:32 +00:00
kerneldump.h
Define a new kernel dump "architecture", TEXTDUMPMAGIC, which is used
2007-12-26 10:57:35 +00:00
kobj.h
Fix typo in a comment: DEFINE_CLASSx => DEFINE_CLASS_x.
2006-08-24 21:09:39 +00:00
ksem.h
…
kthread.h
kthread_exit needs no stinkin argument.
2007-10-26 17:03:22 +00:00
ktr.h
Axe KTR_ALQ_MASK now that KTR_WITNESS is off unless you hack an #ifdef
2006-01-25 14:57:23 +00:00
ktrace.h
This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload
2008-02-23 01:01:49 +00:00
libkern.h
strchr() and strrchr() are already present in the kernel, but with less
2007-04-10 21:42:12 +00:00
limits.h
Define MQ_PRIO_MAX, it seems it is the only place
2005-12-02 07:45:28 +00:00
linedisc.h
…
link_aout.h
…
link_elf.h
Add dl_iterate_phdr function prototype and corresponding dl_phdr_info
2007-04-03 18:33:41 +00:00
linker_set.h
…
linker.h
The kernel linker includes a number of utility functions to look up symbol
2007-12-01 19:24:28 +00:00
lock_profile.h
Fix tinderbox on sun4v
2007-12-16 06:07:34 +00:00
lock.h
- Add real assertions to lockmgr locking primitives.
2008-02-13 20:44:19 +00:00
lockf.h
Add the new kernel-mode NFS Lock Manager. To use it instead of the
2008-03-26 15:23:12 +00:00
lockmgr.h
b_waiters cannot be adequately protected by the interlock because it is
2008-03-28 12:30:12 +00:00
mac.h
Update comments in mac.h.
2007-02-06 16:24:57 +00:00
malloc.h
Eliminate a stale comment concerning contigmalloc(9).
2007-11-10 19:11:51 +00:00
mbpool.h
…
mbuf.h
Replaced the misleading uses of a historical artefact M_TRYWAIT with M_WAIT.
2008-03-25 09:39:02 +00:00
mchain.h
Remove macros
2005-09-19 08:07:18 +00:00
md4.h
…
md5.h
Add definitions for MD5_BLOCK_LENGTH, MD5_DIGEST_LENGTH and
2006-03-15 19:47:12 +00:00
mdioctl.h
Rename GEOM class kernel module g_md.ko to geom_md.ko for consistency
2005-11-11 11:31:23 +00:00
memrange.h
…
mman.h
Add support to mincore for detecting whether a page is part of a
2008-03-28 04:29:27 +00:00
module.h
In keeping with style(9)'s recommendations on macros, use a ';'
2008-03-16 10:58:09 +00:00
mount.h
- Handle buffer lock waiters count directly in the buffer cache instead
2008-03-01 19:47:50 +00:00
mouse.h
Spell "Kensington Thinking Mouse" correctly.
2006-12-18 18:48:28 +00:00
mqueue.h
Last step to make mq_notify conform to POSIX standard, If the process
2005-11-30 05:12:03 +00:00
msg.h
…
msgbuf.h
up the default msgbuf limit to 64k.. a verbose boot on i386 on modern
2006-09-03 00:33:19 +00:00
mtio.h
…
mutex.h
Unify assertion flags for all the main primitives using the LA_* underlying
2007-11-19 23:36:47 +00:00
namei.h
Add the support for the AT_FDCWD and fd-relative name lookups to the
2008-03-31 12:01:21 +00:00
nlist_aout.h
…
param.h
Bump __FreeBSD_version in order to reflect rw_try_rlock() and
2008-04-01 20:33:06 +00:00
pciio.h
Add ABI backwards compatibility to the FreeBSD 4/5/6 versions of
2007-10-24 20:51:44 +00:00
pcpu.h
Move the PCPU_MD_FIELDS last in struct pcpu. While this header is
2008-03-06 17:24:28 +00:00
pioctl.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
pipe.h
…
pmc.h
Increment major version to mark the ABI change between RELENG_7 and -HEAD.
2008-01-14 06:33:41 +00:00
pmckern.h
Kernel and hwpmc(4) support for callchain capture.
2007-12-07 08:20:17 +00:00
pmclog.h
Kernel and hwpmc(4) support for callchain capture.
2007-12-07 08:20:17 +00:00
poll.h
…
posix4.h
Update #includes list.
2006-11-11 16:19:12 +00:00
power.h
…
priority.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
priv.h
Add privilege PRIV_NNPFS_DEBUG for use with Arla/nnpfs. This privilege
2008-02-15 20:26:17 +00:00
proc.h
- Add a new td flag TDF_NEEDSUSPCHK that is set whenever a thread needs
2008-03-21 08:23:25 +00:00
procfs.h
…
protosw.h
soreceive_generic(), and sopoll_generic(). Add new functions sosend(),
2006-07-24 15:20:08 +00:00
ptio.h
…
ptrace.h
Add members pl_sigmask and pl_siglist into ptrace_lwpinfo to get lwp's
2006-02-06 09:41:56 +00:00
queue.h
Remove the non-standard and undocumented STAILQ_REMOVE_HEAD_UNTIL()
2006-10-24 11:19:21 +00:00
random.h
…
reboot.h
…
refcount.h
Add a simple reference count API that is simply a thin wrapper API around
2005-09-27 18:01:33 +00:00
regression.h
…
resource.h
Move the shared cp_time array (counts %sys, %user, %idle etc) to the
2007-11-29 06:34:30 +00:00
resourcevar.h
- Use wait-free method to manage ui_sbsize and ui_proccnt fields in the
2008-03-16 21:29:02 +00:00
rman.h
Add a convenience function rman_init_from_resource for initializing
2006-06-12 04:06:21 +00:00
rmlock.h
Add rm_wowned(9) function to test whether the current thread owns an
2007-11-10 15:06:30 +00:00
rtprio.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
runq.h
- Restore runq to manipulating threads directly by putting runq links and
2008-03-20 05:51:16 +00:00
rwlock.h
Add rw_try_rlock() and rw_try_wlock() to rwlocks.
2008-04-01 20:31:55 +00:00
sbuf.h
…
sched.h
- Remove the unused and redundant sched_newproc() function.
2008-03-20 03:09:15 +00:00
select.h
Fix FD_ISSET() on LP64 platforms. The FD_ISSET() function/macro is
2006-01-06 22:12:46 +00:00
selinfo.h
Refactor select to reduce contention and hide internal implementation
2007-12-16 06:21:20 +00:00
sem.h
Remove extra forward declare of 'struct sem'.
2006-11-07 18:56:48 +00:00
sema.h
…
semaphore.h
…
serial.h
o Don't make the SER_INT_* defines visible to userland. They
2006-03-30 17:24:42 +00:00
sf_buf.h
…
shm.h
Make sure we restrict Linux only IPC calls from being executed
2008-02-12 20:55:03 +00:00
sigio.h
…
signal.h
Correct the visibility macro surrounding SIGSYS.
2008-01-19 21:41:31 +00:00
signalvar.h
Fix for the panic("vm_thread_new: kstack allocation failed") and
2007-11-05 11:36:16 +00:00
sleepqueue.h
- Pass the priority argument from *sleep() into sleepq and down into
2008-03-12 06:31:06 +00:00
smp.h
- Remove the old smp cpu topology specification with a new, more flexible
2008-03-02 07:58:42 +00:00
snoop.h
Slightly change the API for the SNPSTTY ioctl so that the userland now
2005-09-18 19:23:35 +00:00
socket.h
Give sendfile(2) a SF_SYNC flag which makes it wait until all mbufs
2008-02-03 15:54:41 +00:00
socketvar.h
Further clean up sorflush:
2008-02-04 12:25:13 +00:00
sockio.h
Revise network interface cloning to take an optional opaque
2006-07-09 06:04:01 +00:00
soundcard.h
MFP4 (109713):
2006-11-26 11:55:48 +00:00
stack.h
Break out stack(9) from ddb(4):
2007-12-02 20:40:35 +00:00
stat.h
Add the libc glue and headers definitions for the *at() syscalls.
2008-03-31 12:14:04 +00:00
statvfs.h
…
stddef.h
…
stdint.h
…
sun_disklabel.h
…
sx.h
- Re-implement lock profiling in such a way that it no longer breaks
2007-12-15 23:13:31 +00:00
syscall.h
Regen
2008-03-31 12:12:27 +00:00
syscall.mk
Regen
2008-03-31 12:12:27 +00:00
syscallsubr.h
Implement the
2008-03-31 12:04:20 +00:00
sysctl.h
- Restore runq to manipulating threads directly by putting runq links and
2008-03-20 05:51:16 +00:00
sysent.h
Fix a couple of issues with the stack limit for 32-bit processes on 64-bit
2007-07-12 18:01:31 +00:00
syslimits.h
Use the same ARG_MAX for arm than for the other platforms. I don't see any
2007-05-29 15:14:46 +00:00
syslog.h
…
sysproto.h
Regen
2008-03-31 12:12:27 +00:00
systm.h
The "free-lance" timer in the i8254 is only used for the speaker
2008-03-26 20:09:21 +00:00
taskqueue.h
Implement taskqueue_block() and taskqueue_unblock(). These functions allow
2008-03-25 22:38:45 +00:00
termios.h
…
thr.h
Add thr_kill2 syscall which sends a signal to a thread in another process.
2007-08-16 05:26:42 +00:00
tiio.h
…
time.h
Add the libc glue and headers definitions for the *at() syscalls.
2008-03-31 12:14:04 +00:00
timeb.h
…
timepps.h
…
timers.h
s/timer_t/int/g
2006-03-01 06:48:31 +00:00
times.h
…
timespec.h
Implement POSIX timers. Current only CLOCK_REALTIME and CLOCK_MONOTONIC
2005-10-23 04:22:56 +00:00
timetc.h
…
timex.h
…
tree.h
Implement RB_PREV() AND RB_FOREACH_REVERSE().
2007-12-28 07:03:26 +00:00
tty.h
- Don't depend on header pollution to declare struct thread.
2007-12-16 06:12:53 +00:00
ttychars.h
Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)
2006-01-10 09:19:10 +00:00
ttycom.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
ttydefaults.h
…
ttydev.h
Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)
2006-01-10 09:19:10 +00:00
turnstile.h
Commit 3/14 of sched_lock decomposition.
2007-06-04 23:51:44 +00:00
types.h
Add cpuset, an api for thread to cpu binding and cpu resource grouping
2008-03-02 07:39:22 +00:00
ucontext.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
ucred.h
Add padding for anticipated functionality
2007-12-07 01:46:13 +00:00
uio.h
Document struct uio.h entries.
2006-11-29 19:08:45 +00:00
umtx.h
Introduce kernel based userland rwlock. Each umtx chain now has two lists,
2008-04-02 04:08:37 +00:00
un.h
…
unistd.h
Hide SEEK_DATA and SEEK_HOLE under __BSD_VISIBLE.
2007-04-07 18:31:40 +00:00
unpcb.h
Remove explicit locking of struct file.
2007-12-30 01:42:15 +00:00
user.h
Add support for displaying a process' current working directory, root
2008-02-09 05:16:26 +00:00
utsname.h
…
uuid.h
Add parse_uuid() that creates a binary representation of an UUID from
2005-10-07 13:37:10 +00:00
vmmeter.h
Change the management of cached pages (PQ_CACHE) in two fundamental
2007-09-25 06:25:06 +00:00
vnode.h
Add the utility function vn_commname() to retrieve the command name
2008-03-31 11:53:03 +00:00
vtoc.h
Add support for VTOC8 labels (aka sun disk labels). When a label does
2008-03-02 00:52:49 +00:00
wait.h
Since union wait was removed in revision 1.17 (3 years, 5 months ago),
2005-11-10 05:00:20 +00:00
watchdog.h
Align the interfaces for the various watchdogs and make the interface
2006-12-15 21:44:49 +00:00