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dafd513732
freebsd-skq/sys/kern
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iedowse dafd513732 Change the second argument of vflush() to an integer that specifies 
the number of references on the filesystem root vnode to be both
expected and released. Many filesystems hold an extra reference on
the filesystem root vnode, which must be accounted for when
determining if the filesystem is busy and then released if it isn't
busy. The old `skipvp' approach required individual filesystem
xxx_unmount functions to re-implement much of vflush()'s logic to
deal with the root vnode.

All 9 filesystems that hold an extra reference on the root vnode
got the logic wrong in the case of forced unmounts, so `umount -f'
would always fail if there were any extra root vnode references.
Fix this issue centrally in vflush(), now that we can.

This commit also fixes a vnode reference leak in devfs, which could
result in idle devfs filesystems that refuse to unmount.

Reviewed by:	phk, bp
2001-05-16 18:04:37 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
init_sysent.c Regenerate. 2001-05-11 17:05:47 +00:00
kern_acct.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_acl.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +00:00
kern_cap.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
kern_clock.c Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
kern_condvar.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_conf.c Call strlen() once instead of twice. 2001-04-14 21:33:58 +00:00
kern_descrip.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_environment.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_event.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_exec.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_exit.c Don't hold the process mutex across calls to FREE() since the vm system 2001-05-04 16:13:28 +00:00
kern_fork.c Properly copy the P_ALTSTACK flag in struct proc::p_flag to the child 2001-05-07 18:07:29 +00:00
kern_idle.c - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +00:00
kern_intr.c Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 Instead of asserting that a mutex is not still locked after unlocking it, 2001-04-28 12:11:01 +00:00
kern_lockf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_malloc.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_prot.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 Make rtprio work again. 2001-04-29 22:09:26 +00:00
kern_shutdown.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
kern_sig.c - Remove unneeded include of sys/ipl.h. 2001-05-15 23:13:58 +00:00
kern_subr.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
kern_switch.c Catch up to header include changes: 2001-03-28 09:17:56 +00:00
kern_sx.c - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +00:00
kern_synch.c - Remove unneeded include of sys/ipl.h. 2001-05-15 23:15:06 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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_obj.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
link_elf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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 o First step in cleaning up authorization code for the posix4 2001-05-06 16:15:42 +00:00
posix4_mib.c Add $FreeBSD$. 2000-04-22 15:13:06 +00:00
subr_acl_posix1e.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +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 Always initialize bio_resid from bio_bcount in the disk mini-layer so 2001-05-08 08:24:54 +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 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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_pcpu.c - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +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 Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +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 - Split out the support for per-CPU data from the SMP code. UP kernels 2001-05-10 17:45:49 +00:00
subr_taskqueue.c remove include of ipl.h because it no longer exists 2001-05-16 02:52:06 +00:00
subr_trap.c Remove unneeded includes of sys/ipl.h and machine/ipl.h. 2001-05-15 23:22:29 +00:00
subr_turnstile.c - Move state about lock objects out of struct lock_object and into a new 2001-05-04 17:15:16 +00:00
subr_witness.c Check witness_dead in more functions to avoid panic'ing when assertions 2001-05-11 20:25:29 +00:00
subr_xxx.c Extend kqueue down to the device layer. 2001-02-15 16:34:11 +00:00
sys_generic.c Back out scanning file descriptors with holding a process lock. 2001-05-15 10:19:57 +00:00
sys_pipe.c Remove an 'optimization' I hope to never see again. 2001-05-08 09:09:18 +00:00
sys_process.c Fix a bug in the pfind() changes due to confusing the process returned by 2001-05-04 18:13:11 +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 gettimeofday() is MP safe on both -current and -stable. 2001-05-11 17:05:12 +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 Raise the SysV shared memory defaults to more reasonable values. 2001-05-04 18:43:19 +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 Support /dev/ctty again 2001-05-15 18:12:38 +00:00
tty.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +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_mbuf2.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_mbuf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_proto.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
uipc_sockbuf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_socket2.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_socket.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_syscalls.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
uipc_usrreq.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_acl.c o As part of the move to not maintaining copies of the vnode owning uid 2001-04-29 19:53:50 +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 Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_cache.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_cluster.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_conf.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_default.c When calling poll() on a fd associated with a filesystem, let POLLIN/POLLOUT 2001-05-14 14:37:25 +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 Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_init.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_lookup.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_mount.c Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
vfs_subr.c Change the second argument of vflush() to an integer that specifies 2001-05-16 18:04:37 +00:00
vfs_syscalls.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +00:00
vfs_vnops.c Revert consequences of changes to mount.h, part 2. 2001-04-29 02:45:39 +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 VOP_BALLOC was never really a VOP in the first place, so convert it 2001-04-29 12:36:52 +00:00