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freebsd-src/sys/kern
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John Baldwin 6caa8a1501 Overhaul of the SMP code. Several portions of the SMP kernel support have 
been made machine independent and various other adjustments have been made
to support Alpha SMP.

- It splits the per-process portions of hardclock() and statclock() off
  into hardclock_process() and statclock_process() respectively.  hardclock()
  and statclock() call the *_process() functions for the current process so
  that UP systems will run as before.  For SMP systems, it is simply necessary
  to ensure that all other processors execute the *_process() functions when the
  main clock functions are triggered on one CPU by an interrupt.  For the alpha
  4100, clock interrupts are delievered in a staggered broadcast fashion, so
  we simply call hardclock/statclock on the boot CPU and call the *_process()
  functions on the secondaries.  For x86, we call statclock and hardclock as
  usual and then call forward_hardclock/statclock in the MD code to send an IPI
  to cause the AP's to execute forwared_hardclock/statclock which then call the
  *_process() functions.
- forward_signal() and forward_roundrobin() have been reworked to be MI and to
  involve less hackery.  Now the cpu doing the forward sets any flags, etc. and
  sends a very simple IPI_AST to the other cpu(s).  AST IPIs now just basically
  return so that they can execute ast() and don't bother with setting the
  astpending or needresched flags themselves.  This also removes the loop in
  forward_signal() as sched_lock closes the race condition that the loop worked
  around.
- need_resched(), resched_wanted() and clear_resched() have been changed to take
  a process to act on rather than assuming curproc so that they can be used to
  implement forward_roundrobin() as described above.
- Various other SMP variables have been moved to a MI subr_smp.c and a new
  header sys/smp.h declares MI SMP variables and API's.   The IPI API's from
  machine/ipl.h have moved to machine/smp.h which is included by sys/smp.h.
- The globaldata_register() and globaldata_find() functions as well as the
  SLIST of globaldata structures has become MI and moved into subr_smp.c.
  Also, the globaldata list is only available if SMP support is compiled in.

Reviewed by:	jake, peter
Looked over by:	eivind
2001-04-27 19:28:25 +00:00
..
bus_if.m Alter the return value and arguments of the GET_RESOURCE_LIST bus method. 2000-11-28 06:49:15 +00:00
device_if.m * Factor out the object system from new-bus so that it can be used by 2000-04-08 14:17:18 +00:00
genassym.sh Improve kernel bootstrapping: 2001-01-28 06:39:56 +00:00
gensetdefs.pl Generate useful error messages. 2001-04-13 09:37:25 +00:00
imgact_aout.c Back out proc locking to protect p_ucred for obtaining additional 2001-01-27 00:01:31 +00:00
imgact_elf.c Convert the allproc and proctree locks from lockmgr locks to sx locks. 2001-03-28 11:52:56 +00:00
imgact_gzip.c Fix a typo. 2001-01-24 08:42:39 +00:00
imgact_shell.c Fix #! script exec under linux emulation. If a script is exec'd from a 2000-04-26 20:58:40 +00:00
inflate.c Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
init_main.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
init_sysent.c o Regenerated following introduction of __setugid() system call for 2001-04-11 20:21:37 +00:00
kern_acct.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
kern_acl.c Fix a bug introduced in the last commit: vaccess_acl_posix1 only checked 2001-04-23 22:52:26 +00:00
kern_cap.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
kern_clock.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_condvar.c Pass in a pointer to the mutex's lock_object as the second argument to 2001-03-28 10:41:15 +00:00
kern_conf.c Call strlen() once instead of twice. 2001-04-14 21:33:58 +00:00
kern_descrip.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
kern_environment.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_event.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
kern_exec.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
kern_exit.c Do not leave a process with no credential in zombproc. 2001-04-25 10:22:35 +00:00
kern_fork.c Convert the allproc and proctree locks from lockmgr locks to sx locks. 2001-03-28 11:52:56 +00:00
kern_idle.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_intr.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_jail.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
kern_kthread.c Convert the allproc and proctree locks from lockmgr locks to sx locks. 2001-03-28 11:52:56 +00:00
kern_ktr.c Switch from save/disable/restore_intr() to critical_enter/exit(). 2001-03-28 03:06:10 +00:00
kern_ktrace.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
kern_linker.c o Actually extract version of interface and store it along with the name. 2001-03-22 08:58:45 +00:00
kern_lock.c Assert that when using an interlock mutex it is not recursed when lockmgr() 2001-04-20 22:38:40 +00:00
kern_lockf.c Implement client side NFS locks. 2001-04-17 20:45:23 +00:00
kern_malloc.c Fix inconsistency in setup of kernel_map: we need to make sure that 2001-04-18 23:54:13 +00:00
kern_mib.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_module.c Mechanical change to use <sys/queue.h> macro API instead of 2001-02-04 13:13:25 +00:00
kern_mutex.c Exit and re-enter the critical section while spinning for a spinlock so 2001-04-17 03:34:52 +00:00
kern_ntptime.c Update to the 2001-04-02 version of the nanokernel code from Dave Mills. 2001-04-16 13:05:05 +00:00
kern_physio.c Separate the struct bio related stuff out of <sys/buf.h> into 2000-05-05 09:59:14 +00:00
kern_proc.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
kern_prot.c o Remove the disabled p_cansched() test cases that permitted users to 2001-04-27 01:56:32 +00:00
kern_random.c This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
kern_resource.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
kern_shutdown.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_sig.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_subr.c Introduce copyinfrom and copyinstrfrom, which can copy data from either 2001-02-16 14:31:49 +00:00
kern_switch.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
kern_sx.c Rework the witness code to work with sx locks as well as mutexes. 2001-03-28 09:03:24 +00:00
kern_synch.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
kern_syscalls.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
kern_sysctl.c Make the SYSCTL_OUT handlers sysctl_old_user() and sysctl_old_kernel() 2001-03-08 01:20:43 +00:00
kern_tc.c Remove a bogus #ifdef KTR stanza. 2001-01-01 23:09:53 +00:00
kern_time.c Lock the process while sending it SIGARLM and updating p_realtimer. 2001-03-07 03:02:56 +00:00
kern_timeout.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
kern_xxx.c This is kind of a hack, but it should work. Currently, world is broken 2001-03-24 04:40:49 +00:00
ksched.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
link_aout.c Manually add an extra _ to _DYNAMIC since it is provided by ld, not gcc. 2001-02-25 07:25:05 +00:00
link_elf.c Make this compile in a.out mode. link.h has extra dependencies for a.out. 2001-02-25 07:26:54 +00:00
link_elf_obj.c Make this compile in a.out mode. link.h has extra dependencies for a.out. 2001-02-25 07:26:54 +00:00
linker_if.m First round implementation of a fine grain enhanced module to module 2000-04-29 13:19:31 +00:00
Make.tags.inc there is no more miscfs/devfs 2000-12-31 23:12:20 +00:00
Makefile Retire kernfs (kernel part). 2000-12-28 12:17:35 +00:00
makeobjops.pl Use getopt instead of a home grown one 2001-04-07 20:51:24 +00:00
makesyscalls.sh Add reserved lkmressys keyword. I swear, this script will die the 2000-12-01 08:47:54 +00:00
md4c.c Import kernel part of SMB/CIFS requester. 2001-04-10 07:59:06 +00:00
md5c.c Add ia64 support. 2000-09-29 13:36:47 +00:00
p1003_1b.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
posix4_mib.c Add $FreeBSD$. 2000-04-22 15:13:06 +00:00
subr_acl_posix1e.c Fix a bug introduced in the last commit: vaccess_acl_posix1 only checked 2001-04-23 22:52:26 +00:00
subr_autoconf.c Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
subr_blist.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_bus.c Unset the devclass if the attach fails and the devclass was not set to 2001-01-08 22:16:26 +00:00
subr_clist.c Make cblock_alloc_cblocks() spell its own name 2001-03-27 10:21:26 +00:00
subr_devstat.c Another round of the <sys/queue.h> FOREACH transmogriffer. 2001-02-04 16:08:18 +00:00
subr_disk.c Dont call device close and ioctl functions if device has disappeared. 2001-03-13 08:45:05 +00:00
subr_disklabel.c A bit of sanity-checking in bioqdisksort(): panic if we recurse. 2001-01-14 18:48:42 +00:00
subr_diskmbr.c Make diskerr() always log with printf. 2000-11-26 19:29:15 +00:00
subr_diskslice.c Add a new ioctl for doing virgin disklabels. 2000-10-31 07:05:40 +00:00
subr_eventhandler.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
subr_kobj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_log.c Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
subr_mchain.c Remove superfluous m_pkthdr.rcv_if = NULL assignment following 2001-02-25 06:33:50 +00:00
subr_module.c Preceed/preceeding are not english words. Use precede and preceding. 2001-02-18 10:43:53 +00:00
subr_param.c Remove unneeded <stddef.h> #includes. 2000-10-29 16:57:42 +00:00
subr_prf.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
subr_prof.c Switch from save/disable/restore_intr() to critical_enter/exit(). 2001-03-28 03:06:10 +00:00
subr_rman.c Change and clean the mutex lock interface. 2001-02-09 06:11:45 +00:00
subr_sbuf.c Rewrite of the CAM error recovery code. 2001-03-27 05:45:52 +00:00
subr_scanf.c Change the prototype of the strto* routines to make the second 1999-11-24 01:03:08 +00:00
subr_smp.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
subr_taskqueue.c - Catch up to the new swi API changes: 2001-02-09 17:46:35 +00:00
subr_trap.c Overhaul of the SMP code. Several portions of the SMP kernel support have 2001-04-27 19:28:25 +00:00
subr_turnstile.c Exit and re-enter the critical section while spinning for a spinlock so 2001-04-17 03:34:52 +00:00
subr_witness.c Spelling nit: acquring -> acquiring. 2001-04-21 01:50:32 +00:00
subr_xxx.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
sys_generic.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
sys_pipe.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
sys_process.c Change the pfind() and zpfind() functions to lock the process that they 2001-04-24 00:51:53 +00:00
sys_socket.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
syscalls.c o Regenerated following introduction of __setugid() system call for 2001-04-11 20:21:37 +00:00
syscalls.master o Introduce a new system call, __setsugid(), which allows a process to 2001-04-11 20:20:40 +00:00
sysv_ipc.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
sysv_msg.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
sysv_sem.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
sysv_shm.c o Move per-process jail pointer (p->pr_prison) to inside of the subject 2001-02-21 06:39:57 +00:00
tty.c Grab the process lock while calling psignal and before calling psignal. 2001-03-07 03:37:06 +00:00
tty_compat.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
tty_conf.c Don't refer to TABLDISC in the comments here. 2000-01-30 10:14:13 +00:00
tty_cons.c Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
tty_pty.c Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
tty_snoop.c Make this driver play ball with devfs(5). 2001-04-17 20:53:11 +00:00
tty_subr.c Make cblock_alloc_cblocks() spell its own name 2001-03-27 10:21:26 +00:00
tty_tty.c Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
uipc_accf.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
uipc_domain.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
uipc_mbuf.c Fix inconsistency in setup of kernel_map: we need to make sure that 2001-04-18 23:54:13 +00:00
uipc_mbuf2.c Long awaited style fixup in mbuf code. Get rid of K&R style prototyping 2001-02-11 05:02:06 +00:00
uipc_proto.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
uipc_sockbuf.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_socket.c Actually show the values that tripped the assertion "receive 1" 2001-04-27 13:42:50 +00:00
uipc_socket2.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_syscalls.c Sendfile is documented to return 0 on success, however if when a 2001-04-26 00:14:14 +00:00
uipc_usrreq.c Change uipc_sockaddr so that a sockaddr_un without a path is returned 2001-04-24 19:09:23 +00:00
vfs_acl.c Fix a bug introduced in the last commit: vaccess_acl_posix1 only checked 2001-04-23 22:52:26 +00:00
vfs_aio.c Check validity of signal callback requested via aio routines. 2001-04-18 22:18:39 +00:00
vfs_bio.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_cache.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_cluster.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_conf.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_default.c Move the netexport structure from the fs-specific mountstructure 2001-04-25 07:07:52 +00:00
vfs_export.c vfs_subr.c is getting rather fat. The underlying repocopy and this 2001-04-26 20:47:14 +00:00
vfs_extattr.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_init.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_lookup.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_mount.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_subr.c vfs_subr.c is getting rather fat. The underlying repocopy and this 2001-04-26 20:47:14 +00:00
vfs_syscalls.c Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
vfs_vnops.c When closing the last reference to an unlinked file, it is freed 2001-04-25 08:11:18 +00:00
vnode_if.pl replace calls to non-existant bail() subroutine with calls to 2001-03-23 11:48:50 +00:00
vnode_if.src This patch removes the VOP_BWRITE() vector. 2001-04-17 08:56:39 +00:00