freebsd-skq/sys/kern
jhb a8c1c80ef5 Refine the turnstile and sleep queue interfaces just a bit:
- Add a new _lock() call to each API that locks the associated chain lock
  for a lock_object pointer or wait channel.  The _lookup() functions now
  require that the chain lock be locked via _lock() when they are called.
- Change sleepq_add(), turnstile_wait() and turnstile_claim() to lookup
  the associated queue structure internally via _lookup() rather than
  accepting a pointer from the caller.  For turnstiles, this means that
  the actual lookup of the turnstile in the hash table is only done when
  the thread actually blocks rather than being done on each loop iteration
  in _mtx_lock_sleep().  For sleep queues, this means that sleepq_lookup()
  is no longer used outside of the sleep queue code except to implement an
  assertion in cv_destroy().
- Change sleepq_broadcast() and sleepq_signal() to require that the chain
  lock is already required.  For condition variables, this lets the
  cv_broadcast() and cv_signal() functions lock the sleep queue chain lock
  while testing the waiters count.  This means that the waiters count
  internal to condition variables is no longer protected by the interlock
  mutex and cv_broadcast() and cv_signal() now no longer require that the
  interlock be held when they are called.  This lets consumers of condition
  variables drop the lock before waking other threads which can result in
  fewer context switches.

MFC after:	1 month
2004-10-12 18:36:20 +00:00
..
bus_if.m Minor formatting fixes for lines > 80 characters 2004-08-12 17:26:22 +00:00
clock_if.m
device_if.m Minor formatting fixes for lines > 80 characters 2004-08-12 17:26:22 +00:00
genassym.sh
imgact_aout.c
imgact_elf32.c
imgact_elf64.c
imgact_elf.c On arm, set the default elf brand to FreeBSD, until the binutils do it for us. 2004-09-23 23:29:24 +00:00
imgact_gzip.c
imgact_shell.c
inflate.c
init_main.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
init_sysent.c Regen to unbreak world. 2004-10-07 01:09:46 +00:00
kern_acct.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_acl.c
kern_alq.c
kern_clock.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_condvar.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
kern_conf.c Fix a LOR relating to freeing cdevs. 2004-10-01 06:33:39 +00:00
kern_context.c
kern_descrip.c Another case where we need to guard against a partially 2004-10-04 06:45:48 +00:00
kern_environment.c
kern_event.c unlock global lock in kqueue_scan before msleep'ing to prevent dead 2004-09-14 18:38:16 +00:00
kern_exec.c Put on my peril sensitive sunglasses and add a flags field to the internal 2004-10-11 22:04:16 +00:00
kern_exit.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_fork.c Back out rev 1.240; it is unnecessary. In particular, 2004-10-06 23:53:49 +00:00
kern_idle.c Give the 4bsd scheduler the ability to wake up idle processors 2004-09-01 06:42:02 +00:00
kern_intr.c Refactor a bunch of scheduler code to give basically the same behaviour 2004-09-05 02:09:54 +00:00
kern_jail.c
kern_kse.c Add an execve command for kse_thr_interrupt to allow libpthread to 2004-10-07 13:50:10 +00:00
kern_kthread.c Give setrunqueue() and sched_add() more of a clue as to 2004-09-01 02:11:28 +00:00
kern_ktr.c Remove unused macro. 2004-09-20 19:01:44 +00:00
kern_ktrace.c
kern_linker.c When trying each linker class in turn with a preloaded module, exit 2004-08-27 01:20:26 +00:00
kern_lock.c Reintroduce slightly modified patch from kern/69964. Check for 2004-08-27 01:41:28 +00:00
kern_lockf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_mac.c
kern_malloc.c Turn VM_KMEM_SIZE_MAX and VM_KMEM_SIZE_SCALE into tunables. 2004-09-29 14:21:40 +00:00
kern_mbuf.c CTASSERT that MSZIE is a power of 2 (otherwise dtom() breaks) 2004-09-20 08:52:04 +00:00
kern_mib.c
kern_module.c Don't bother calling the module event handlers from module_shutdown() 2004-08-20 21:47:48 +00:00
kern_mtxpool.c
kern_mutex.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
kern_ntptime.c
kern_physio.c Eliminate DEV_STRATEGY() macro: call dev_strategy() directly. 2004-09-23 14:45:04 +00:00
kern_poll.c
kern_proc.c Remove duplicate line. 2004-10-10 05:07:43 +00:00
kern_prot.c Remove sched_free_thread() which was only used 2004-08-31 06:12:13 +00:00
kern_resource.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_sema.c
kern_shutdown.c Change the perfectly precise message 2004-10-04 13:13:23 +00:00
kern_sig.c Use scheduler api to adjust thread priority. 2004-10-05 09:10:30 +00:00
kern_subr.c Add a WITNESS_WARN() to uiomove() to whine if locks are held when this 2004-10-12 18:27:14 +00:00
kern_switch.c Prevent preemption in slot_fill. 2004-10-12 16:30:20 +00:00
kern_sx.c
kern_synch.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
kern_syscalls.c
kern_sysctl.c Add missing zero flag arguments to calls to userland_sysctl() 2004-10-12 07:49:15 +00:00
kern_tc.c Put on my peril sensitive sunglasses and add a flags field to the internal 2004-10-11 22:04:16 +00:00
kern_thr.c Close a race between a thread exiting and the freeing of it's stack. 2004-10-06 14:23:00 +00:00
kern_thread.c In original kern_execve() code, at the start of the function, it forces 2004-10-06 00:40:41 +00:00
kern_time.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_timeout.c Cut a KTR record whenever a callout is invoked. Mark whether it runs 2004-08-06 21:49:00 +00:00
kern_umtx.c
kern_uuid.c
kern_xxx.c Add missing zero flag arguments to calls to userland_sysctl() 2004-10-12 07:49:15 +00:00
ksched.c
link_elf_obj.c Add support for completing the installation of ELF relocatable 2004-08-29 01:21:51 +00:00
link_elf.c Normalize the VM wiring done with SPARSE_MAPPING: check for errors, and 2004-08-09 18:46:13 +00:00
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c
sched_4bsd.c When preempting a thread, put it back on the HEAD of its run queue. 2004-10-05 22:03:10 +00:00
sched_ule.c Fix whitespace botch that only showed up in the commit message diff :-/ 2004-10-05 22:14:02 +00:00
subr_acl_posix1e.c
subr_autoconf.c
subr_blist.c
subr_bus.c Fix BUS_DEBUG case 2004-08-30 05:48:49 +00:00
subr_clist.c
subr_clock.c
subr_devstat.c
subr_disk.c Add bioq_takefirst(). 2004-08-19 19:51:51 +00:00
subr_eventhandler.c
subr_hints.c
subr_kdb.c Fix a bug introduced in the previous commit: kdb_cpu_trap() gets to 2004-09-26 06:48:59 +00:00
subr_kobj.c
subr_log.c
subr_mbpool.c
subr_mchain.c
subr_module.c
subr_msgbuf.c
subr_param.c
subr_pcpu.c
subr_power.c
subr_prf.c
subr_prof.c
subr_rman.c Add a newline. 2004-08-19 20:16:09 +00:00
subr_rtc.c
subr_sbuf.c
subr_scanf.c
subr_sleepqueue.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
subr_smp.c Move 4bsd specific experimental IP code into the 4bsd file. 2004-09-03 07:42:31 +00:00
subr_taskqueue.c Add taskqueue_drain. This waits for the specified task to finish, if 2004-10-05 04:16:01 +00:00
subr_trap.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
subr_turnstile.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
subr_unit.c Fix a typo to fix the !DIAGNOSTIC build. 2004-09-30 18:13:18 +00:00
subr_witness.c Add entropy harvest mutex to hard-coded spin lock witness lock order, 2004-10-11 08:26:18 +00:00
sys_generic.c Poll() uses the array smallbits that is big enough to hold 32 struct 2004-08-27 21:23:50 +00:00
sys_pipe.c Major enhancements to pipe memory usage: 2004-08-16 01:27:24 +00:00
sys_process.c Add pl_flags to ptrace_lwpinfo, two flags PL_FLAG_SA and PL_FLAG_BOUND 2004-08-08 22:26:11 +00:00
sys_socket.c
syscalls.c
syscalls.master Regen to unbreak world. 2004-10-07 01:09:46 +00:00
sysv_ipc.c
sysv_msg.c
sysv_sem.c
sysv_shm.c Push Giant deep into vm_forkproc(), acquiring it only if the process has 2004-09-03 05:11:32 +00:00
tty_compat.c
tty_conf.c
tty_cons.c Hold threadcount reference when we call into the underlying console 2004-09-24 07:16:56 +00:00
tty_pty.c Split the ioctl function in control and slave side, this eliminated 2004-09-23 16:13:46 +00:00
tty_subr.c
tty_tty.c
tty.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
uipc_accf.c
uipc_cow.c
uipc_domain.c
uipc_jumbo.c
uipc_mbuf2.c Rename _m_tag_free() to m_tag_free_default() and make it non-static. 2004-10-11 18:40:19 +00:00
uipc_mbuf.c improve the mbuf m_print function.. Only pull length from pkthdr if there 2004-09-28 18:40:18 +00:00
uipc_proto.c
uipc_sem.c
uipc_sockbuf.c Add locking to the kqueue subsystem. This also makes the kqueue subsystem 2004-08-15 06:24:42 +00:00
uipc_socket2.c Add locking to the kqueue subsystem. This also makes the kqueue subsystem 2004-08-15 06:24:42 +00:00
uipc_socket.c Rework sofree() logic to take into account a possible race with accept(). 2004-10-11 08:11:26 +00:00
uipc_syscalls.c Add a SOCKBUF_LOCK() to a rarely executed path in do_sendfile(). 2004-10-02 05:37:47 +00:00
uipc_usrreq.c Don't hold the UNIX domain socket subsystem lock over the body of the 2004-08-25 21:24:36 +00:00
vfs_acl.c
vfs_aio.c cover soreadable and sowriteable with the corresponding socketbuffer locks. 2004-10-01 05:54:06 +00:00
vfs_bio.c use dev_re[fl]thread() rather than home rolled versions. 2004-09-24 05:55:03 +00:00
vfs_cache.c
vfs_cluster.c Give cluster_write() an explicit vnode argument. 2004-09-27 19:14:10 +00:00
vfs_default.c Use vn_isdisk() to check if vnode is a disk. 2004-09-24 06:23:31 +00:00
vfs_export.c
vfs_extattr.c
vfs_init.c Simplify initialization of va_null a little bit. 2004-09-15 21:42:03 +00:00
vfs_lookup.c Assert Giant in namei(). Bugs have been reported in which, following 2004-08-04 18:39:07 +00:00
vfs_mount.c Back out changes which were introduced to delay mounting root file system. 2004-10-05 11:26:43 +00:00
vfs_subr.c vtryrecycle: Don't rely on type VBAD alone to mean that we don't need 2004-10-06 02:09:59 +00:00
vfs_syscalls.c
vfs_vnops.c Hold dev_lock and check for NULL devsw pointer when we service FIODTYPE ioctl. 2004-09-24 06:16:48 +00:00
vnode_if.src Remove the buffercache/vnode side of BIO_DELETE processing in 2004-09-13 06:50:42 +00:00