John Baldwin efa86db61d Adaptively spin before blocking on the turnstile if an rwlock is write ...

locked.  In general the adaptive spinning is similar to the same code
for mutexes with some extra trickiness in rw_wunlock_hard().  Specifically,
even though both wait bits might be set and we might have a turnstile with
at least one waiting thread, there might not be any threads blocked on the
queue we are not waking up (they might all be spinning), and we should
only preserve the waiting flag for the queue we aren't waking up if there
are in fact threads blocked on that queue.  Secondly, there might not be
any threads blocked on the queue we have chosen to waken threads from
(there might only be threads blocked on the other queue and the threads
for this queue are all spinning) in which case we disown the turnstile
instead of doing a braodcast and unpend.

2006-04-18 18:27:54 +00:00

..

bus_if.m

…

clock_if.m

…

cpufreq_if.m

…

device_if.m

…

genassym.sh

…

imgact_aout.c

Correct two vm object reference leaks in error cases.

2006-03-16 08:51:59 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Avoid a vm object reference leak in a rarely used code path.

2006-01-21 20:11:49 +00:00

imgact_gzip.c

Maintain the lock on the vnode for most of exec_elfN_imgact().

2005-12-24 04:57:50 +00:00

imgact_shell.c

…

inflate.c

Normalize a significant number of kernel malloc type names:

2005-10-31 15:41:29 +00:00

init_main.c

Modify the way we account for CPU time spent (step 1)

2006-02-07 21:22:02 +00:00

init_sysent.c

Regenerate.

2006-03-23 08:48:37 +00:00

kern_acct.c

Conditionalize locking of Giant for VFS in acct(2). We already

2006-03-28 21:26:59 +00:00

kern_acl.c

Implement new world order in VFS locking for ACLs. This will remove the

2005-09-17 22:01:14 +00:00

kern_alq.c

- Conditionalize Giant around VFS operations for ALQ, ktrace, and

2006-03-28 21:30:22 +00:00

kern_clock.c

Trim trailing whitespace.

2006-04-17 20:14:51 +00:00

kern_condvar.c

Fix a sleep queue race for KSE thread.

2006-02-23 00:13:58 +00:00

kern_conf.c

Novel idea, don't print a string if it is NULL!

2006-01-12 19:15:14 +00:00

kern_context.c

…

kern_cpu.c

- Print message about cpufreq and timecounter TSC

2006-03-03 02:06:04 +00:00

kern_descrip.c

Mark fgetsock() and fputsock() as depcrecated: callers should rely on

2006-04-01 11:09:54 +00:00

kern_environment.c

Fix memory leak introduced in previous revision.

2006-03-15 19:23:08 +00:00

kern_event.c

Drop the kqueue global mutex as soon as we are finished with it rather

2006-04-14 14:27:28 +00:00

kern_exec.c

Remove the unused sva and eva arguments from pmap_remove_pages().

2006-04-03 21:16:10 +00:00

kern_exit.c

Kill the last Giant acquisition in the exit(2) code. This Giant acquisition

2006-04-10 14:07:28 +00:00

kern_fork.c

Fix a race between file operations and rfork(RFCFDG) by parking

2006-03-15 23:24:14 +00:00

kern_idle.c

…

kern_intr.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

kern_jail.c

Push Giant down in jails. Pass the MPSAFE flag to NDINIT, and keep track

2005-09-28 00:30:56 +00:00

kern_kse.c

Close some races between procfs/ptrace and exit(2):

2006-02-22 18:57:50 +00:00

kern_kthread.c

Don't do a PHOLD() in kthread_create() w/o a matching PRELE() in

2006-02-22 17:21:45 +00:00

kern_ktr.c

Whitespace.

2006-01-27 23:06:08 +00:00

kern_ktrace.c

- Conditionalize Giant around VFS operations for ALQ, ktrace, and

2006-03-28 21:30:22 +00:00

kern_linker.c

MFP4: Support for profiling dynamically loaded objects.

2006-03-26 12:20:54 +00:00

kern_lock.c

- Remove and unused include.

2005-12-23 21:32:40 +00:00

kern_lockf.c

…

kern_mac.c

Don't call vn_finished_write() if vn_start_write() failed.

2006-03-19 20:43:07 +00:00

kern_malloc.c

Fix bug in malloc_uninit():

2006-03-03 22:36:52 +00:00

kern_mbuf.c

Properly handle the case when the packet secondary zone can't allocate

2006-03-08 14:05:38 +00:00

kern_mib.c

…

kern_module.c

Add a new module_file() function that returns the linker_file_t associated

2006-04-17 19:44:44 +00:00

kern_mtxpool.c

…

kern_mutex.c

Mark the thread pointer used during an adaptive spin volatile so that the

2006-04-14 19:51:50 +00:00

kern_ntptime.c

…

kern_physio.c

…

kern_pmc.c

Fix -Wundef.

2005-12-04 02:12:43 +00:00

kern_poll.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

kern_proc.c

CPU time accounting speedup (step 2)

2006-02-11 09:33:07 +00:00

kern_prot.c

Audit the arguments (user/group IDs) for the system calls that set these IDs.

2006-02-06 00:32:33 +00:00

kern_resource.c

Go over calcru and friends once more.

2006-03-11 10:48:19 +00:00

kern_rwlock.c

Adaptively spin before blocking on the turnstile if an rwlock is write

2006-04-18 18:27:54 +00:00

kern_sema.c

…

kern_shutdown.c

On shutdown try to turn off all swap devices. This way GEOM providers are

2006-04-10 10:03:41 +00:00

kern_sig.c

- Conditionalize Giant around VFS operations for ALQ, ktrace, and

2006-03-28 21:30:22 +00:00

kern_subr.c

…

kern_switch.c

Trim trailing whitespace.

2005-12-28 17:13:31 +00:00

kern_sx.c

Add a new file (kern/subr_lock.c) for holding code related to struct

2006-01-17 16:55:17 +00:00

kern_synch.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

kern_syscalls.c

…

kern_sysctl.c

Make sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS) generally available instead

2006-02-16 15:40:36 +00:00

kern_tc.c

Disable the "cputick increased..." message now that the dust has settled.

2006-03-15 20:22:32 +00:00

kern_thr.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

kern_thread.c

Rethink it a bit, if there is a STOP flag, don't bother to resume other

2006-03-21 10:05:15 +00:00

kern_time.c

Let kernel POSIX timer code and mqueue code to use integer as a resource

2006-03-01 06:29:34 +00:00

kern_timeout.c

Use the recently added msleep_spin() function to simplify the

2006-02-23 19:13:12 +00:00

kern_umtx.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

kern_uuid.c

Add parse_uuid() that creates a binary representation of an UUID from

2005-10-07 13:37:10 +00:00

kern_xxx.c

…

ksched.c

Use proc lock to prevent a thread from exiting, Giant was no longer used to

2006-04-10 04:55:59 +00:00

link_elf_obj.c

Make our ELF64 type definitions match standards. In particular this

2005-12-18 04:52:37 +00:00

link_elf.c

Make our ELF64 type definitions match standards. In particular this

2005-12-18 04:52:37 +00:00

linker_if.m

…

Make.tags.inc

…

Makefile

…

makesyscalls.sh

…

md4c.c

…

md5c.c

Fix a panic on sparc64 related to inproper aligment - we cannot assume,

2006-03-30 18:45:50 +00:00

p1003_1b.c

Use proc lock to prevent a thread from exiting, Giant was no longer used to

2006-04-10 04:55:59 +00:00

posix4_mib.c

…

sched_4bsd.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

sched_ule.c

Use variable i instead of variable cpus as an index to get correct kseq.

2005-12-27 12:02:03 +00:00

serdev_if.m

Add scc(4), a driver for serial communications controllers. These

2006-03-30 18:33:22 +00:00

subr_acl_posix1e.c

Implement new world order in VFS locking for ACLs. This will remove the

2005-09-17 22:01:14 +00:00

subr_autoconf.c

…

subr_blist.c

…

subr_bus.c

Add a devd(8) event that is sent after the system resumes. This can be

2006-01-22 01:06:25 +00:00

subr_clist.c

…

subr_clock.c

…

subr_devstat.c

…

subr_disk.c

When calling bioq_first() to see if a queue is empty in bioq_disksort(),

2006-01-13 23:27:12 +00:00

subr_eventhandler.c

…

subr_firmware.c

firmware(9) is a subsystem to load binary data into the kernel via a

2006-01-29 02:52:42 +00:00

subr_hints.c

…

subr_kdb.c

Increment kdb_active after we stopped the other CPUs and decrement

2006-04-04 00:40:20 +00:00

subr_kobj.c

Increment kobj_lookup_misses on a miss rather than decrementing it.

2005-12-29 18:00:42 +00:00

subr_lock.c

Add a basic reader/writer lock implementation to the kernel. This

2006-01-27 23:13:26 +00:00

subr_log.c

…

subr_mbpool.c

…

subr_mchain.c

…

subr_module.c

…

subr_msgbuf.c

…

subr_param.c

Partially revert revision 1.66, which contained a change that did not

2005-10-14 19:15:10 +00:00

subr_pcpu.c

Fix 'show allpcpu' ddb command on non-x86. CPU IDs are in the range 0 ..

2005-11-03 21:06:29 +00:00

subr_power.c

General consensus is that it would be even better to run this in a

2005-11-09 16:22:56 +00:00

subr_prf.c

Implement printf 'X' conversion for both libstand and kernel.

2006-03-09 22:37:34 +00:00

subr_prof.c

Change the addupc_*() functions to use the uintfptr_t type for pc rather

2005-12-16 22:08:32 +00:00

subr_rman.c

Prefer NULL to 0.

2005-11-17 08:56:21 +00:00

subr_rtc.c

…

subr_sbuf.c

Make sbuf_copyin() return the number of bytes copied on success.

2005-12-23 11:49:53 +00:00

subr_scanf.c

…

subr_sleepqueue.c

Add a 'show sleepqueue' alias for 'show sleepq' in DDB.

2006-04-17 20:16:32 +00:00

subr_smp.c

Rename the KDB_STOP_NMI kernel option to STOP_NMI and make it apply to all

2005-10-24 21:04:19 +00:00

subr_stack.c

Add 'depth' argument to CTRSTACK() macro, which allows to reduce number

2005-08-29 11:34:08 +00:00

subr_taskqueue.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

subr_trap.c

Test before modifying p_sflag to avoid unconditionally cache line

2006-02-10 14:59:16 +00:00

subr_turnstile.c

- Bring back turnstile_empty() which can check to see if an individual

2006-04-18 18:16:54 +00:00

subr_unit.c

…

subr_witness.c

Add the scc_hwmtx spin mutex, defined by scc(4).

2006-04-07 22:15:54 +00:00

sys_generic.c

Return error from fget_write() rather than hardcoding EBADF now that

2006-01-06 16:34:22 +00:00

sys_pipe.c

- In pipe() return the error returned by pipe_create(), rather then

2006-01-30 08:25:04 +00:00

sys_process.c

Close some races between procfs/ptrace and exit(2):

2006-02-22 18:57:50 +00:00

sys_socket.c

…

syscalls.c

Regenerate.

2006-03-23 08:48:37 +00:00

syscalls.master

Revert previous commit at davidxu's insistance. Instead, use __DECONST

2006-03-28 14:32:38 +00:00

sysv_ipc.c

…

sysv_msg.c

…

sysv_sem.c

…

sysv_shm.c

Properly support for FreeBSD 4 32bit System V shared memory.

2006-03-30 07:42:32 +00:00

tty_compat.c

Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)

2006-01-10 09:19:10 +00:00

tty_conf.c

…

tty_cons.c

…

tty_pts.c

Allow root to open prison pts devices too.

2006-01-31 22:19:37 +00:00

tty_pty.c

Don't destroy the slave /dev entry until someone figures out why devfs seems

2006-02-02 20:35:45 +00:00

tty_subr.c

…

tty_tty.c

…

tty.c

Move the old BSD4.3 tty compatibility from (!BURN_BRIDGES && COMPAT_43)

2006-01-10 09:19:10 +00:00

uipc_accf.c

…

uipc_cow.c

Previously, nothing prevented the page that was returned by pmap_extract()

2005-10-23 07:41:56 +00:00

uipc_domain.c

The sysctls kern.ipc.[max_linkhdr|max_protohdr|max_hdr|max_datalen]

2006-02-18 17:16:18 +00:00

uipc_mbuf2.c

…

uipc_mbuf.c

promote fast ipsec's m_clone routine for public use; it is renamed

2006-03-15 21:11:11 +00:00

uipc_mqueue.c

Change msleep() and tsleep() to not alter the calling thread's priority

2006-04-17 18:20:38 +00:00

uipc_proto.c

Remove UNIX domain socket raw socket support. This feature is documented

2006-04-09 16:29:47 +00:00

uipc_sem.c

Convert remaining functions to ANSI C function declarations.

2006-01-22 00:30:46 +00:00

uipc_sockbuf.c

Chance protocol switch method pru_detach() so that it returns void

2006-04-01 15:42:02 +00:00

uipc_socket2.c

Chance protocol switch method pru_detach() so that it returns void

2006-04-01 15:42:02 +00:00

uipc_socket.c

Chance protocol switch method pru_detach() so that it returns void

2006-04-01 15:42:02 +00:00

uipc_syscalls.c

Add comment to accept1() that it should use getsock() instead of fgetsock()

2006-04-01 11:14:56 +00:00

uipc_usrreq.c

Chance protocol switch method pru_detach() so that it returns void

2006-04-01 15:42:02 +00:00

vfs_acl.c

Implement new world order in VFS locking for ACLs. This will remove the

2005-09-17 22:01:14 +00:00

vfs_aio.c

1. Move code for scanning pending I/O from aio_fsync to aio_aqueue,

2006-03-24 00:50:06 +00:00

vfs_bio.c

- Properly check against B_DELWRI and B_NEEDSGIANT. This check was

2006-04-04 06:44:21 +00:00

vfs_cache.c

remove duplicate sizeof vnode entry (debug.sizeof.vnode already existed)...

2006-04-16 18:38:30 +00:00

vfs_cluster.c

Remove unused leaked debug function prototype.

2006-03-21 01:04:24 +00:00

vfs_default.c

- GETWRITEMOUNT now returns a referenced mountpoint to prevent its

2006-03-31 03:52:24 +00:00

vfs_export.c

Normalize a significant number of kernel malloc type names:

2005-10-31 15:41:29 +00:00

vfs_extattr.c

- Release the references acquired by VOP_GETWRITEMOUNT and vfs_getvfs().

2006-03-31 03:54:20 +00:00

vfs_hash.c

In vfs_hash_get(): mount point should never be changed

2006-04-18 08:05:08 +00:00

vfs_init.c

…

vfs_lookup.c

- LK_RETRY means nothing when passed to VOP_LOCK. Call vn_lock instead.

2006-03-31 02:59:23 +00:00

vfs_mount.c

- When there are dangling vnodes at unmount print them before we panic.

2006-03-31 23:38:15 +00:00

vfs_subr.c

- VFS_LOCK_GIANT when recycling a vnode via getnewvnode. We may be

2006-04-04 06:46:10 +00:00

vfs_syscalls.c

- Release the references acquired by VOP_GETWRITEMOUNT and vfs_getvfs().

2006-03-31 03:54:20 +00:00

vfs_vnops.c

- Release the references acquired by VOP_GETWRITEMOUNT and vfs_getvfs().

2006-03-31 03:54:20 +00:00

vnode_if.src

Eradicate caddr_t from the VFS API.

2005-12-14 00:49:52 +00:00