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8dcb900b62
freebsd-nq/sys/kern
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John Baldwin 8dcb900b62 Handle "dead" witnesses better in the situation of several short term locks 
being created and destroyed without a single long-term one around to ensure
the witness associated with that group of locks stays alive.  The pipe
mutexes are an example of this group.  For a dead witness we no longer
clear the witness name.  Instead, when looking up the witness for a lock,
if a dead witness' (a witness with a refcount of 0) w_name pointer is
identical to the witness name of the lock then we revive that witness
instead of using a new witness for the lock.  This results in far fewer
dead witness objects and also better preserves locking orders over the long
term resulting in more correct lock order checking.  Note that we can't
ever derefence w_name of a dead witness since we don't know if the string
it is pointing to has been free()'d or kldunload()'d out from under us.
2002-06-06 19:04:38 +00:00
..
bus_if.m Use protected names (_foo) to cutdown on boatloads of lint warnings. 2002-04-21 11:16:10 +00:00
clock_if.m Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
device_if.m
genassym.sh Allow one to specify the AWK used in the environment(commandline). 2002-02-11 03:54:30 +00:00
imgact_aout.c - Change fill_kinfo_proc() to require that the process is locked when it 2002-04-09 20:10:46 +00:00
imgact_elf.c Fix typo in the BSD copyright: s/withough/without/ 2002-06-02 20:05:59 +00:00
imgact_gzip.c Modernize my email address. 2002-03-25 13:52:45 +00:00
imgact_shell.c Return a more meaningful errno when the length of the interpreter 2001-11-28 03:26:58 +00:00
inflate.c Modernize my email address. 2002-03-25 13:52:45 +00:00
init_main.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
init_sysent.c Add uuidgen(2) and uuidgen(1). 2002-05-28 06:16:08 +00:00
kern_acct.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
kern_acl.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
kern_cap.c - Attempt to help declutter kern. sysctl by moving security out from 2002-01-16 06:55:30 +00:00
kern_clock.c Fixed breakage of binary compatibility of the kern.clockrate sysctl in 2002-05-05 04:33:09 +00:00
kern_condvar.c CURSIG() is not a macro so rename it cursig(). 2002-05-29 23:44:32 +00:00
kern_conf.c Break the following implementation of panic(3): 2002-04-25 13:17:33 +00:00
kern_descrip.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
kern_environment.c Cosmetic tweaks. Try and keep the style more consistent, catch some stray 2002-05-01 02:51:50 +00:00
kern_event.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
kern_exec.c - Reorder execve() so that it performs blocking operations before it 2002-05-02 15:00:14 +00:00
kern_exit.c Add POSIX.1-2001 WCONTINUED option for waitpid(2). A proc flag 2002-06-01 18:37:46 +00:00
kern_fork.c - Protect randompid and nprocs with the allproc_lock. 2002-05-02 15:13:45 +00:00
kern_idle.c Pre-KSE/M3 commit. 2002-02-07 20:58:47 +00:00
kern_intr.c diff reduction from KSE to keep WW-III from happenning on -current 2002-05-29 20:40:50 +00:00
kern_jail.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_kthread.c Fix a couple of style bugs introduced (or touched by) previous commit. 2002-02-07 23:06:26 +00:00
kern_ktr.c Remove a stale comment. 2002-04-06 08:44:04 +00:00
kern_ktrace.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
kern_linker.c Test if rootvnode is NULL rather than if rootdev is NODEV when determining 2002-04-26 09:52:54 +00:00
kern_lock.c Record the file, line, and pid of the last successful shared lock holder. This 2002-05-30 05:55:22 +00:00
kern_lockf.c Remove __P. 2002-03-19 21:25:46 +00:00
kern_malloc.c - Replace the bandaid introduced in revision 1.110 with 2002-05-31 09:41:09 +00:00
kern_mib.c - Add a mutex to lock the global securelevel value. 2002-04-02 17:43:17 +00:00
kern_module.c - Lock down the ``module'' structure by adding an SX lock that is used by 2002-03-18 07:45:30 +00:00
kern_mtxpool.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_mutex.c Replace thread_runnable() with thread_running() as the latter is more 2002-06-04 22:36:24 +00:00
kern_ntptime.c Hide the private parts of timecounter from a couple of places that don't 2002-04-26 21:31:44 +00:00
kern_physio.c Use btodb() macro. 2002-05-18 09:34:09 +00:00
kern_poll.c Make the DEVICE_POLLING code compile with -Werror and in LINT 2002-03-09 08:02:52 +00:00
kern_proc.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
kern_prot.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
kern_resource.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
kern_sema.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_shutdown.c Fix alpha build. The alpha has dumpsys implemented. 2002-05-12 18:27:28 +00:00
kern_sig.c Add POSIX.1-2001 WCONTINUED option for waitpid(2). A proc flag 2002-06-01 18:37:46 +00:00
kern_subr.c o Condition the compilation of uiomoveco() and vm_uiomove() 2002-05-05 22:42:40 +00:00
kern_switch.c Make the run queue parameters machine dependent. Optimize 64 bit 2002-05-25 01:12:23 +00:00
kern_sx.c Set the lock type equal to the lock name for now as all of the current 2002-04-04 20:49:35 +00:00
kern_synch.c CURSIG() is not a macro so rename it cursig(). 2002-05-29 23:44:32 +00:00
kern_syscalls.c - Lock down the ``module'' structure by adding an SX lock that is used by 2002-03-18 07:45:30 +00:00
kern_sysctl.c Update comment regarding the locking of the sysctl tree. 2002-04-02 05:50:07 +00:00
kern_tc.c Mistyped and lost a '&' in previous commit. 2002-05-30 16:26:39 +00:00
kern_time.c Hide the private parts of timecounter from a couple of places that don't 2002-04-26 21:31:44 +00:00
kern_timeout.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_uuid.c Add uuidgen(2) and uuidgen(1). 2002-05-28 06:16:08 +00:00
kern_xxx.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
ksched.c In a threaded world, differnt priorirites become properties of 2002-02-11 20:37:54 +00:00
link_aout.c Simple p_ucred -> td_ucred changes to start using the per-thread ucred 2002-02-27 18:32:23 +00:00
link_elf_obj.c Don't use the symbol name to lookup the symbol value when we can use 2002-04-25 01:22:16 +00:00
link_elf.c Don't use the symbol name to lookup the symbol value when we can use 2002-04-25 01:22:16 +00:00
linker_if.m Add the sysctl "kern.function_list", which currently exports all 2001-10-30 15:21:45 +00:00
Make.tags.inc Don't hardcode /sys when making tags, instead use ${.CURDIR}/.. this 2002-02-27 10:07:15 +00:00
Makefile Don't generate <sys/syscalls-hide.h> it has never had any users anywhere in 2001-10-13 09:17:49 +00:00
makesyscalls.sh Usage style sweep: spell "usage" with a small 'u'. 2002-04-22 13:44:47 +00:00
md4c.c Import kernel part of SMB/CIFS requester. 2001-04-10 07:59:06 +00:00
md5c.c
p1003_1b.c Change p_can{debug,see,sched,signal}()'s first argument to be a thread 2002-05-19 00:14:50 +00:00
posix4_mib.c
subr_acl_posix1e.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
subr_autoconf.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_blist.c Now that daddr_t has grown up, use %lld to printf it and cast it to long 2002-05-18 23:46:04 +00:00
subr_bus.c Don't call malloc(9) to allocate zero bytes softc data for devices. 2002-04-23 15:48:23 +00:00
subr_clist.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_clock.c Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
subr_devstat.c GC: BIO_ORDERED, various infrastructure dealing with BIO_ORDERED. 2002-02-22 09:26:35 +00:00
subr_disk.c Implement DIOCGFRONTSTUFF ioctl which reports how many bytes from the start 2002-04-09 15:43:32 +00:00
subr_disklabel.c Comment out Kirks io-request priority hack until we can do this in a 2002-04-22 06:53:20 +00:00
subr_diskmbr.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_diskslice.c Fixed overflow in the bounds checking in dscheck(). It assumed that 2002-06-06 00:35:07 +00:00
subr_eventhandler.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_hints.c Cosmetic tweaks. Try and keep the style more consistent, catch some stray 2002-05-01 02:51:50 +00:00
subr_kobj.c
subr_log.c Make funsetown() take a 'struct sigio **' so that the locking can 2002-05-06 19:31:28 +00:00
subr_mbuf.c Separate "seperate" from kernel source. 2002-05-16 22:43:20 +00:00
subr_mchain.c Move the new byte order function prototypes from <sys/param.h> to 2002-04-26 22:48:23 +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 Improve the implementation of adjtime(2). 2002-04-15 12:23:11 +00:00
subr_pcpu.c Add a per-cpu variable, cpumask, the preshifted equivalent of 1 << cpuid. 2002-01-05 09:35:50 +00:00
subr_power.c Add generalized power profile code. 2002-03-04 18:46:13 +00:00
subr_prf.c ANSIfy the one remaining K&R function. 2002-06-02 21:57:28 +00:00
subr_prof.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_rman.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_rtc.c Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
subr_sbuf.c Fix warnings on gcc-3.1+ where __func__ is a const char * instead of a 2002-03-19 10:56:46 +00:00
subr_scanf.c
subr_smp.c Updated a doubly stale comment about signotify(). Fixed a nearby long line. 2002-04-05 10:00:37 +00:00
subr_taskqueue.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_trap.c CURSIG() is not a macro so rename it cursig(). 2002-05-29 23:44:32 +00:00
subr_turnstile.c Replace thread_runnable() with thread_running() as the latter is more 2002-06-04 22:36:24 +00:00
subr_witness.c Handle "dead" witnesses better in the situation of several short term locks 2002-06-06 19:04:38 +00:00
subr_xxx.c Here follows the new kernel dumping infrastructure. 2002-03-31 22:37:00 +00:00
sys_generic.c o Correct an error made in revision 1.65: In readv(), if uap->iovcnt is 2002-05-09 02:30:41 +00:00
sys_pipe.c Make funsetown() take a 'struct sigio **' so that the locking can 2002-05-06 19:31:28 +00:00
sys_process.c All signals can be sent to the inferior process when it's restarted, 2002-05-19 01:37:43 +00:00
sys_socket.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
syscalls.c Add uuidgen(2) and uuidgen(1). 2002-05-28 06:16:08 +00:00
syscalls.master Add syscall uuidgen() for generating Univerally Unique Identifiers 2002-05-28 05:58:06 +00:00
sysv_ipc.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
sysv_msg.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
sysv_sem.c Remove __P. 2002-03-19 21:25:46 +00:00
sysv_shm.c Remove __P. 2002-03-19 21:25:46 +00:00
tty_compat.c Fixed some style bugs in the removal of __P(()). The main ones were 2002-03-24 05:09:11 +00:00
tty_conf.c KSE Milestone 2 2001-09-12 08:38:13 +00:00
tty_cons.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
tty_pty.c - Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:09:22 +00:00
tty_subr.c Remove __P. 2002-03-19 21:25:46 +00:00
tty_tty.c Remove __P. 2002-03-19 21:25:46 +00:00
tty.c Nit: kern.ttys is of type S,xtty, not S,tty. 2002-05-31 16:11:49 +00:00
uipc_accf.c Revert the last bits of my bogus move of NMBCLUSTERS 2001-06-01 21:47:34 +00:00
uipc_domain.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
uipc_mbuf2.c In m_aux_delete, no need to chase beyond victim. 2002-05-23 15:59:48 +00:00
uipc_mbuf.c Fix a bug in m_split(): the "m->m_ext.ext_size" field of an mbuf was being 2002-05-31 22:09:57 +00:00
uipc_proto.c Implement a LOCAL_PEERCRED socket option which returns a 2001-08-17 22:01:18 +00:00
uipc_sockbuf.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
uipc_socket2.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
uipc_socket.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
uipc_syscalls.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
uipc_usrreq.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
vfs_acl.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
vfs_aio.c Back out my lats commit of locking down a socket, it conflicts with hsu's work. 2002-05-31 11:52:35 +00:00
vfs_bio.c Use "bwrbg" as description when we sleep for background writing, 2002-06-06 08:56:10 +00:00
vfs_cache.c Disable the shared locking namei() code for now. It breaks several stacking 2002-05-14 21:59:49 +00:00
vfs_cluster.c Make daddr_t and u_daddr_t 64bits wide. 2002-05-14 11:09:43 +00:00
vfs_conf.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
vfs_default.c Remove a stale comment saying that the vnode lock must be the first 2002-04-27 22:20:33 +00:00
vfs_export.c Fixed some style bugs in the removal of __P(()). The main ones were 2002-03-24 05:09:11 +00:00
vfs_extattr.c Remove a duplicated vfs_freeopts() that I introduced in last 2002-05-28 13:27:55 +00:00
vfs_init.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
vfs_lookup.c More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
vfs_mount.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
vfs_subr.c Move some sysctls from the debug tree to the vfs tree. 2002-06-06 15:50:22 +00:00
vfs_syscalls.c Remove a duplicated vfs_freeopts() that I introduced in last 2002-05-28 13:27:55 +00:00
vfs_vnops.c Disable the shared locking namei() code for now. It breaks several stacking 2002-05-14 21:59:49 +00:00
vnode_if.src Make daddr_t and u_daddr_t 64bits wide. 2002-05-14 11:09:43 +00:00