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opnsense-src/sys/sys
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John Baldwin 8d768e7676 Rework witness_lock() to make it slightly more useful and flexible. 
- witness_lock() is split into two pieces: witness_checkorder() and
  witness_lock().  Witness_checkorder() determines if acquiring a specified
  lock at the time it is called would result in a lock order.  It
  optionally adds a new lock order relationship as well.  witness_lock()
  updates witness's data structures to assume that a lock has been acquired
  by stick a new lock instance in the appropriate lock instance list.
- The mutex and sx lock functions now call checkorder() prior to trying to
  acquire a lock and continue to call witness_lock() after the acquire is
  completed.  This will let witness catch a deadlock before it happens
  rather than trying to do so after the threads have deadlocked (i.e. never
  actually report it).
- A new function witness_defineorder() has been added that adds a lock
  order between two locks at runtime without having to acquire the locks.
  If the lock order cannot be added it will return an error.  This function
  is available to programmers via the WITNESS_DEFINEORDER() macro which
  accepts either two mutexes or two sx locks as its arguments.
- A few simple wrapper macros were added to allow developers to call
  witness_checkorder() anywhere as a way of enforcing locking assertions
  in code that might acquire a certain lock in some situations.  The
  macros are: witness_check_{mutex,shared_sx,exclusive_sx} and take an
  appropriate lock as the sole argument.
- The code to remove a lock instance from a lock list in witness_unlock()
  was unnested by using a goto to vastly improve the readability of this
  function.
2004-01-28 20:39:57 +00:00
..
_iovec.h Move the typedef for size_t into _iovec.h, so that size_t is available 2003-02-26 20:16:58 +00:00
_label.h Rename MAC_MAX_POLICIES to MAC_MAX_SLOTS, since the variables and 2003-05-08 19:49:42 +00:00
_lock.h Renamed the idempotency identifier to match the file name. 2002-06-07 14:37:09 +00:00
_mutex.h Add some basic support for measuring sleep mutex contention to the 2004-01-25 01:59:27 +00:00
_null.h GC the AMD64 special handling. 2003-12-26 06:11:43 +00:00
_semaphore.h Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c. 2002-09-19 00:43:32 +00:00
_sigset.h Split 4.x and 5.x signal handling so that we can keep 4.x signal 2002-10-25 19:10:58 +00:00
_task.h Defer the vrele() on a jail's root vnode reference from prison_free() 2004-01-23 20:44:26 +00:00
_timespec.h Simplify struct __timespec, fix style bugs, add an XXX comment. 2003-02-26 16:50:01 +00:00
_timeval.h Move struct timeval to its own header so that it can be shared between 2002-12-31 04:08:41 +00:00
_types.h Move details of dev_t (and udev_t) to <sys/_types.h>. 2003-03-28 15:27:30 +00:00
aac_ioctl.h Bring the aac driver *much* closer to style(9). 2001-09-05 20:43:02 +00:00
acct.h Move details of dev_t (and udev_t) to <sys/_types.h>. 2003-03-28 15:27:30 +00:00
acl.h Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e 2003-08-04 02:13:05 +00:00
agpio.h Add simple support for AGP 3.0 including enabling 8x mode. The simple 2003-10-23 18:08:56 +00:00
aio.h o Add missing synchronization (splnet()/splx()) in aio_free_entry(). 2002-01-06 21:03:39 +00:00
alq.h Add an explicit credential argument to alq_open() to allow the caller to 2003-06-22 22:28:56 +00:00
assym.h
ata.h Update the PIO mode gathering code. 2003-09-08 08:30:43 +00:00
bio.h Bring back the geom_bioqueues, they _are_ a good idea. 2004-01-28 08:39:18 +00:00
bitstring.h Finish the repocopy of bitstring.h to sys so it can be used 2003-06-13 19:40:13 +00:00
blist.h Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's 2003-08-12 23:24:05 +00:00
buf.h Send B_PHYS out to pasture, it no longer serves any function. 2003-11-15 09:28:09 +00:00
bus.h Convenience functions to generate notifications from the kernel. The ACPI 2003-10-24 22:41:54 +00:00
bus_dma.h Document the lockfunc and lockfuncarg arguments to bus_dma_tag_create() in 2003-11-07 23:29:42 +00:00
callout.h Remove __P 2002-03-19 20:18:42 +00:00
cdefs.h While not illegal, attempt to pacify gcc -Wundef. It just so happens 2003-10-31 05:42:53 +00:00
cdio.h Remove no longer existant CDIOCREADAUDIO ioctl. 2003-10-20 09:29:40 +00:00
cdrio.h * Add CDRIOC{READ,WRITE}SPEED ioctls to cd(4). Units are in KB/sec. 2002-10-18 22:03:39 +00:00
chio.h Use symbolic constants instead of "4". 2003-05-31 16:54:37 +00:00
clist.h
clock.h Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
condvar.h - Implement selwakeuppri() which allows raising the priority of a 2003-11-09 09:17:26 +00:00
conf.h The size and contents of the DEV_STRATEGY() macro has progressed to 2003-10-18 09:03:15 +00:00
cons.h Add a new cn_flags fields to struct consdev, the low-level console 2003-10-18 02:13:39 +00:00
consio.h 1. Allow information about current history size be retrieved using ioctl(2); 2002-08-19 16:32:09 +00:00
copyright.h Happy 2004! 2003-12-31 22:27:51 +00:00
ctype.h Resolve conflicts arising from the ACPI CA 20021118 import. 2002-11-27 18:09:20 +00:00
dataacq.h
device_port.h
devicestat.h Add an XXX comment with a TODO item for next time we run a revision 2003-05-31 21:10:01 +00:00
digiio.h Add DIGIIO_SETALTPIN and DIGIIO_GETALTPIN ioctl values 2001-06-20 14:51:58 +00:00
dir.h
dirent.h Fix namespace issues by using the relatively new visibility 2002-09-10 18:12:16 +00:00
disk.h I think the divorce successed, so stop #including <geom/geom_disk.h> 2003-04-01 18:55:04 +00:00
disklabel.h Sanitize the LABELSECTOR & LABELOFFSET definitions: 2003-06-07 09:06:39 +00:00
diskmbr.h Add definitions for location of the magic sequence and the length 2003-04-13 21:52:22 +00:00
diskpc98.h Remove DIOCGPC98 ioctl. 2003-05-01 14:40:16 +00:00
dkstat.h #include <sys/resource.h> to limit ports damage. 2003-05-07 15:26:43 +00:00
domain.h - add dom_if{attach,detach} framework. 2003-10-17 15:46:31 +00:00
dvdio.h Update header. 2002-03-04 21:08:35 +00:00
elf32.h Move the definition of ElfN_Hashelt to common headers. The only platform 2002-05-30 08:32:18 +00:00
elf64.h Move the definition of ElfN_Hashelt to common headers. The only platform 2002-05-30 08:32:18 +00:00
elf_common.h Add defines required for TLS support. 2003-06-18 16:38:22 +00:00
elf_generic.h Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable 2002-07-20 02:56:12 +00:00
endian.h Quiet warnings about mis-matched pointer assignment. 2003-10-15 20:05:57 +00:00
errno.h Copyin and copyout are only possible from a process-native thread, 2002-10-07 06:25:26 +00:00
event.h Tweak the definition of the EV_SET macro so that it evaluates each 2003-02-02 19:39:51 +00:00
eventhandler.h Oops, SHUTDOWN_PRI_LAST should be EVENTHANDLER_PRI_LAST, not 2003-03-24 21:24:37 +00:00
eventvar.h
exec.h Increase the size of SPARE_USRSPACE. It is way too small by default 2003-11-07 21:25:54 +00:00
extattr.h Userspace prototypes for the extattr_list_*() system calls. 2003-06-04 04:04:24 +00:00
fbio.h Add FBTYPEs used by the sbus bus support in XFree86. This uses some of 2003-06-18 17:49:52 +00:00
fcntl.h Move FMARK and FDEFER til sys/file.h where they belong. 2003-06-20 07:59:59 +00:00
fdcio.h Long promised major enhancement set for the floppy disk driver: 2001-12-15 19:09:04 +00:00
file.h Add a f_vnode field to struct file. 2003-06-22 08:41:43 +00:00
filedesc.h Restore correct semantics for F_DUPFD fcntl. This should fix the errors 2004-01-17 00:59:04 +00:00
filio.h
fnv_hash.h Use the same API as the example code. 2001-03-20 02:10:18 +00:00
gmon.h Reserved one of the spare fields in struct gmon to record the history 2002-02-21 05:52:49 +00:00
gpt.h o Include <sys/uuid.h>. This avoids that applications such as 2002-11-10 20:13:58 +00:00
iconv.h Make msdosfs long filenames matching case insensitive again. 2003-12-08 08:32:20 +00:00
imgact.h Bring in two sets of changes: 2002-11-05 17:51:56 +00:00
imgact_aout.h Forward declare struct vnode so that <sys/vnode.h> or some other header 2002-09-05 07:54:03 +00:00
imgact_elf.h Add an additional field to the elf brandinfo structure to support 2003-12-23 02:42:39 +00:00
inflate.h Forgot one more instance of my old email address. 2002-03-26 08:29:40 +00:00
interrupt.h Expand the argument to the ithread enable/disable helper hooks from an 2003-11-17 06:08:10 +00:00
ioccom.h I've fixed the X11 port, so I can remove the (ioctl) hack. 2002-04-10 04:53:37 +00:00
ioctl.h Hide GCCisms in the non-GCC case. 2002-02-26 07:44:03 +00:00
ioctl_compat.h
ipc.h It is possible for an active aio to prevent shared memory from being 2003-01-13 23:04:32 +00:00
jail.h Defer the vrele() on a jail's root vnode reference from prison_free() 2004-01-23 20:44:26 +00:00
joystick.h Fix typo in the BSD copyright: s/withough/without/ 2002-06-02 20:05:59 +00:00
jumbo.h Fix 2 vm_offset_t -> vm_paddr_t missed in previous commit. 2003-03-25 01:47:29 +00:00
kbio.h Implement keyboard paste 2001-03-11 22:51:05 +00:00
kenv.h Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
kernel.h - add dom_if{attach,detach} framework. 2003-10-17 15:46:31 +00:00
kerneldump.h Add kernel dump support, based on the ia64 version (which was committed 2002-10-20 17:03:15 +00:00
kobj.h * Add multiple inheritance to kobj. Each class can have zero or more base 2003-10-16 09:16:28 +00:00
kse.h GC the unused <machine/kse.h> file. 2003-12-24 00:51:30 +00:00
kthread.h Some kernel threads try to do significant work, and the default KSTACK_PAGES 2002-10-02 07:44:29 +00:00
ktr.h Retire the KTR_LOCKMGR bit and use it to log eventhandler messages 2003-03-11 20:07:22 +00:00
ktrace.h - Add a td_pflags field to struct thread for private flags accessed only by 2003-06-09 17:38:32 +00:00
libkern.h Back out previous commit, which as bde@ pointed out is a no-op. 2004-01-14 21:02:06 +00:00
limits.h sys/sys/limits.h: 2003-05-19 20:29:07 +00:00
linedisc.h The size and contents of the DEV_STRATEGY() macro has progressed to 2003-10-18 09:03:15 +00:00
link_aout.h Repo copy link.h to sys/link_elf.h and sys/link_aout.h since they are 2002-08-22 20:35:23 +00:00
link_elf.h Implement dlinfo() function. 2003-02-13 17:47:44 +00:00
linker.h Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values 2003-05-01 03:31:18 +00:00
linker_set.h Add a __section(x) macro as well. Use this in linker_set.h. ie: 2002-09-23 06:11:29 +00:00
lock.h Rework witness_lock() to make it slightly more useful and flexible. 2004-01-28 20:39:57 +00:00
lockf.h Remove __P 2002-03-19 20:18:42 +00:00
lockmgr.h - Add an interlock argument to BUF_LOCK and BUF_TIMELOCK. 2003-02-25 03:37:48 +00:00
mac.h Switch TCP over to using the inpcb label when responding in timed 2003-12-17 14:55:11 +00:00
mac_policy.h Switch TCP over to using the inpcb label when responding in timed 2003-12-17 14:55:11 +00:00
malloc.h correct typo in comment 2003-08-19 16:41:12 +00:00
mbpool.h Add a facility for devices, specifically network interfaces, that require 2003-07-15 08:59:38 +00:00
mbuf.h m_tag fixups in preparation for heavier use: 2004-01-02 17:27:39 +00:00
mchain.h Some style fixes. 2003-02-21 16:24:49 +00:00
md4.h Import kernel part of SMB/CIFS requester. 2001-04-10 07:59:06 +00:00
md5.h Oops, this should have been part of my previous commit. 2002-06-24 14:18:39 +00:00
mdioctl.h Add a couple of undocumented test options to MD(4) to aid in regression 2003-04-09 11:59:29 +00:00
memrange.h Some BIOSs are using MTRR values that are only documented under NDA 2002-09-15 15:07:55 +00:00
mman.h Add the mlockall() and munlockall() system calls. 2003-08-11 07:14:08 +00:00
module.h - Lock down the ``module'' structure by adding an SX lock that is used by 2002-03-18 07:45:30 +00:00
mount.h Update the statfs structure with 64-bit fields to allow 2003-11-12 08:01:40 +00:00
mouse.h Minor changes: 2002-03-24 03:07:07 +00:00
msg.h Add const qualifier to data argument for msgsnd. 2003-01-26 20:09:34 +00:00
msgbuf.h Replace the code for reading and writing the kernel message buffer 2003-06-22 02:18:31 +00:00
mtio.h Make the mtio data structures explicitly sized. 2002-05-14 07:30:13 +00:00
mutex.h o make debug_mpsafenet globally visible 2003-11-05 23:42:51 +00:00
namei.h Consistently use the BSD u_int and u_short instead of the SYSV uint and 2003-08-07 15:04:27 +00:00
nlist_aout.h Pad after "char *n_name;" in the !_AOUT_INCLUDE_ case so that struct nlist 2002-09-05 08:03:02 +00:00
param.h Bump __FreeBSD_version to indicate __cxa_atexit/__cxa_finalize presence. 2003-12-19 18:17:13 +00:00
pciio.h style(9) the structure definitions. 2001-09-05 01:22:14 +00:00
pcpu.h Allow the MD backend to provide an alternative to 2003-11-20 22:50:26 +00:00
pioctl.h Kernel modifications necessary to allow to follow fork()ed children. 2002-08-04 01:07:02 +00:00
pipe.h Modify the MAC Framework so that instead of embedding a (struct label) 2003-11-12 03:14:31 +00:00
poll.h Reconnect a comment with its code. 2002-07-10 04:47:25 +00:00
posix4.h Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
power.h Very minor warns fix. Add a declaration for an unused parameter. 2002-07-15 14:06:03 +00:00
priority.h style(9) the structure definitions. 2001-09-05 01:22:14 +00:00
proc.h Allow the use of a stale p_stops value in STOPEVENT(), grabbing 2004-01-27 20:21:07 +00:00
procfs.h Use explicit sizes for the prpsinfo command length string so that 2001-08-16 08:35:51 +00:00
protosw.h Introduce a MAC label reference in 'struct inpcb', which caches 2003-11-18 00:39:07 +00:00
ptio.h
ptrace.h Implement preliminary support for the PT_SYSCALL command to ptrace(2). 2003-10-09 10:17:16 +00:00
queue.h Add safe _FOREACH iterators to the rest of the queue.h types. 2003-08-14 14:49:26 +00:00
random.h add RANDOM_PURE for use by crypto drivers that harvest data from h/w RNG's 2002-10-04 20:34:08 +00:00
reboot.h Changed the RB_PAUSE flag from 0x40000 to 0x100000 and marked the old 2003-11-15 10:04:06 +00:00
regression.h Remove __P 2002-03-19 20:18:42 +00:00
resource.h - Remove PRIO_TOTAL. 2003-11-02 03:50:16 +00:00
resourcevar.h According to the submitter, POSIX mandates that all interval timers are 2003-10-28 20:46:23 +00:00
rman.h Implement rman_get_device 2003-02-12 07:00:59 +00:00
rtprio.h Remove __P 2002-03-19 20:18:42 +00:00
runq.h Make the run queue parameters machine dependent. Optimize 64 bit 2002-05-25 01:12:23 +00:00
sbuf.h Add the new function "sbuf_done()" which returns non-zero if the sbuf is 2002-10-04 09:58:17 +00:00
sched.h - Only allow pinning and unpinning of curthread. 2003-11-15 23:54:49 +00:00
select.h Add complete struct timeval by including <sys/_timeval.h>. 2002-12-31 04:13:50 +00:00
selinfo.h - Implement selwakeuppri() which allows raising the priority of a 2003-11-09 09:17:26 +00:00
sem.h s/u_short/unsigned short/ to make this compile if _POSIX_C_SOURCE=200112 2003-06-02 17:23:37 +00:00
sema.h Added used includes. <sys/_lock.h> is a prerequisite for <sys/_mutex.h>, 2001-10-10 10:26:07 +00:00
semaphore.h o Adjust the SEM_VALUE_MAX macro so that <machine/limits.h> isn't 2002-10-04 21:31:33 +00:00
sf_buf.h Move the declarations for nsfbufs and friends over to sf_buf.h from 2003-12-28 09:10:51 +00:00
shm.h Bring shm functions closer the the opengroup standards. 2003-01-25 21:33:05 +00:00
sigio.h When compiling the kernel do not implicitly include filedesc.h from proc.h, 2003-01-01 01:56:19 +00:00
signal.h - According to mike@FreeBSD.org SIGTHR should be hiden by 2003-03-31 23:31:50 +00:00
signalvar.h If a thread masks all its signal, in cursig(), no signal will be exchanged 2003-11-10 03:11:08 +00:00
smp.h Fix all users of mp_maxid to use the same semantics, namely: 2003-12-03 14:57:26 +00:00
snoop.h Declare the snp ioctl()s to work on udev_t, since that is what they 2002-11-11 10:45:31 +00:00
socket.h Add restrict qualifiers. 2003-12-24 18:47:43 +00:00
socketvar.h - Modify alpha's sf_buf implementation to use the direct virtual-to- 2003-11-16 06:11:26 +00:00
sockio.h Style consistency fix for MAC ioctls added previously. 2002-02-10 16:55:35 +00:00
soundcard.h New defines that paves the way for new midi features and ports. 2003-11-22 03:27:09 +00:00
stat.h Fix two misuses of __BSD_VISIBLE. 2003-05-22 17:07:57 +00:00
statvfs.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
stddef.h Change the definition of NULL on ia64 (for LP64 compilations) from 2003-12-07 21:10:06 +00:00
stdint.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
sun_disklabel.h Introduce a #define for the length of the bootloader code. 2003-04-23 08:04:30 +00:00
sx.h - Make this compile if INVARIANTS support is not enabled. 2002-04-02 18:18:56 +00:00
syscall.h Regen - this should be essentially a NOP, except for rcsid changes. 2003-12-23 03:52:14 +00:00
syscall.mk Regen - this should be essentially a NOP, except for rcsid changes. 2003-12-23 03:52:14 +00:00
syscallsubr.h Back out the following revisions: 2003-11-05 01:53:10 +00:00
sysctl.h Fix a typo in a comment: sysctl(1) should be sysctl(8). 2003-11-14 21:37:35 +00:00
sysent.h Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit 2003-09-25 01:10:26 +00:00
syslimits.h Relent and back out rev 1.15. 2003-09-10 19:08:16 +00:00
syslog.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
sysproto.h regen (__restrict) 2003-12-26 05:58:32 +00:00
systm.h Add linenumber and source filename to panic(9) output. 2004-01-19 21:27:11 +00:00
taskqueue.h Defer the vrele() on a jail's root vnode reference from prison_free() 2004-01-23 20:44:26 +00:00
termios.h Remove __P 2002-03-19 20:18:42 +00:00
thr.h - Add two files to support the thr threading interface. 2003-04-01 00:30:30 +00:00
tiio.h At long last, commit the zero copy sockets code. 2002-06-26 03:37:47 +00:00
time.h constify bintime_add, bintime_sub, bintime2timespec, timespec2bintime, 2003-10-26 02:38:34 +00:00
timeb.h Remove __P 2002-03-19 20:18:42 +00:00
timepps.h Long overdue comment claification: RFC 2783 was approved long time ago. 2003-11-23 18:52:23 +00:00
timers.h
times.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
timespec.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
timetc.h Give timecounters a numeric quality field. 2003-08-16 08:23:53 +00:00
timex.h Removed unused forward struct declaration. 2002-04-28 09:51:45 +00:00
tree.h Import OpenBSD's <sys/tree.h>, needed by OpenSSH. 2002-06-23 14:38:51 +00:00
tty.h Use a new message buffer `consmsgbuf' to forward messages to a 2003-06-22 02:54:33 +00:00
ttychars.h
ttycom.h
ttydefaults.h
ttydev.h Add B921600 (yes, some serial ports can do this, but generic sio not support 2001-06-20 03:26:41 +00:00
turnstile.h Oh dear, forgot this file in the turnstile commit. This header defines 2003-11-11 23:08:26 +00:00
types.h Move details of dev_t (and udev_t) to <sys/_types.h>. 2003-03-28 15:27:30 +00:00
ucontext.h Change the clear_ret argument of get_mcontext() to be a flags argument. 2003-11-09 20:31:04 +00:00
ucred.h Fixed some style bugs (insertion sort error and extra blank line). 2003-11-12 15:07:18 +00:00
uio.h Fixed style bugs in rev.1.12 (unsorting of prototypes by adding new ones 2003-12-27 10:30:43 +00:00
umtx.h Catch a few places where NULL (pointer) was used where 0 (integer) was 2003-12-23 02:36:43 +00:00
un.h o Merge <machine/ansi.h> and <machine/types.h> into a new header 2002-08-21 16:20:02 +00:00
unistd.h Update limits and configuration parameters for 1003.1/TC1/D6. 2002-10-27 18:03:02 +00:00
unpcb.h Remove vestiges of no longer needed unp_rvnode field. 2003-02-06 01:34:43 +00:00
user.h Make proc's kg_nice/ki_nice explicitly signed for PPC. This is a 2004-01-22 06:56:00 +00:00
utsname.h Round 1 of Brucification inspired changes. 2001-03-24 08:37:56 +00:00
uuid.h Introduce {be,le}_uuid_{enc,dec}() functions for explicitly encoding 2003-05-31 16:47:07 +00:00
vmmeter.h - It's more accurate to say that vm_paging_needed() returns TRUE 2003-02-02 07:16:40 +00:00
vnode.h Properly ifdef support for vfs locking assertions based on DEBUG_VFS_LOCKS. 2004-01-05 18:04:02 +00:00
wait.h Remove the deprecated 4.2/4.3BSD wait union. 2002-06-05 02:21:01 +00:00
watchdog.h Remove an '_' which was surplus to requirements. 2003-06-25 08:30:45 +00:00
xrpuio.h