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Rick Macklem 4261923e76 Add a new "-N" option to umount(8), that does a forced dismount of an NFS mount 
point.

The new "-N" option does a forced dismount of an NFS mount point, but avoids
doing any checking of the mounted-on path, so that it will not get hung
when a vnode lock is held by another hung process on the mounted-on vnode.
The most common case of this is a "umount" with the "-f" option.
Other than avoiding checking the mounted-on path, it performs the same
forced dismount as a successful "umount -f" would do.

This commit includes a content change to the man page.

Tested by:	pho
Reviewed by:	kib
MFC after:	2 weeks
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D11735
2017-07-29 20:08:25 +00:00
..
adjkerntz Explicitly add more files to the 'runtime' package. 2016-02-09 20:19:31 +00:00
badsect Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
bsdlabel sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
camcontrol Fix whitespace bugs 2017-07-10 05:16:07 +00:00
ccdconfig ccdconfig first appeared in NetBSD 1.1 2016-10-02 23:19:05 +00:00
clri Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
comcontrol Explicitly add more files to the 'runtime' package. 2016-02-09 20:19:31 +00:00
conscontrol Explicitly add more files to the 'runtime' package. 2016-02-09 20:19:31 +00:00
ddb Explicitly add more files to the 'runtime' package. 2016-02-09 20:19:31 +00:00
decryptcore DIRDEPS_BUILD: Connect new directories. 2017-05-09 01:48:14 +00:00
devd Require devd to be running for its ATF tests to run 2017-06-20 19:34:21 +00:00
devfs sbin/devfs: clarify usage 2017-03-08 23:58:10 +00:00
dhclient parse.c parse_string 2017-05-31 21:31:15 +00:00
dmesg Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
dump Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
dumpfs Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
dumpon DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
etherswitchcfg sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
fdisk sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
ffsinfo sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
fsck fsck(8): Don't overrun mount device buffer 2017-04-14 00:22:28 +00:00
fsck_ffs Commit the 64-bit inode project. 2017-05-23 09:29:05 +00:00
fsck_msdosfs sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
fsdb sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
fsirand prefix UFS symbols with UFS_ to reduce namespace pollution 2017-02-15 19:50:26 +00:00
gbde sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
geom Fix withered handling of r280687, broken by r286719. 2017-04-27 19:03:08 +00:00
ggate sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
growfs sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
gvinum Utilize SYSROOT from r320119 in places where DESTDIR may be wanting WORLDTMP. 2017-06-19 20:47:24 +00:00
hastctl DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
hastd DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
ifconfig Persistently store NIC's hardware MAC address, and add a way to retrive it 2017-05-10 22:13:47 +00:00
init - Use strlcat() instead of strncat(). 2017-07-07 02:48:55 +00:00
ipf Disconnect ipftest and ipresend from the build until it can be verified 2017-03-14 02:10:37 +00:00
ipfw ipfw: Note that bandwidth can take G suffix in the manpage 2017-06-23 17:31:07 +00:00
iscontrol sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
kldconfig Advertise kldxref(8) a little better. 2017-04-27 19:48:00 +00:00
kldload Advertise kldxref(8) a little better. 2017-04-27 19:48:00 +00:00
kldstat Typo. 2017-03-10 19:13:38 +00:00
kldunload Explicitly add more files to the 'runtime' package. 2016-02-09 20:19:31 +00:00
ldconfig sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
md5 Fix date. 2017-03-02 14:50:01 +00:00
mdconfig Add MD_VERIFY option to enable O_VERIFY in open for vnode type. 2017-05-31 21:18:11 +00:00
mdmfs Add missing history sections to a number of storage related man pages 2016-09-16 04:28:31 +00:00
mknod Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
mksnap_ffs Fix an issue in the rev.316718 causing variable to be unsed uninitialized. 2017-04-12 19:23:41 +00:00
mount Fix "mount -uw /" when the filesystem type doesn't match. 2017-07-08 11:06:27 +00:00
mount_cd9660 Add a post-humous manpage for cd9660(5), the ISO-9660 file system 2017-03-23 02:57:08 +00:00
mount_fusefs sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
mount_msdosfs Remove msdosfs -o large support. 2017-06-09 12:06:22 +00:00
mount_nfs Fix mount_nfs so that it doesn't create mounttab entries for NFSv4 mounts. 2017-05-08 00:45:05 +00:00
mount_nullfs sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
mount_udf sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
mount_unionfs sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
nandfs Add missing history sections to a number of storage related man pages 2016-09-16 04:28:31 +00:00
natd Add history section to natd(8) 2016-10-05 20:42:35 +00:00
newfs Bump date for today's commit. 2017-07-07 16:58:40 +00:00
newfs_msdos newfs_msdos: clarify description of -T (timestamp) option 2017-05-16 19:03:26 +00:00
newfs_nandfs newfs_nandfs: Fix unaligned pointer warning 2017-03-04 16:59:55 +00:00
nfsiod Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
nos-tun Add history section to nos-tun(8) 2016-10-05 20:45:21 +00:00
nvmecontrol Fix sign of resid and add a mostly useless cast to cope with signed vs 2017-07-01 02:19:48 +00:00
pfctl pfctl parser tests 2017-07-15 19:22:01 +00:00
pflogd sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
ping Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ping6 Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
quotacheck sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
rcorder Add rcorder-visualize.sh, which generates graphviz from rc.d scripts 2016-12-06 15:49:39 +00:00
reboot .Xr mount.conf(5) from boot(8). 2017-05-28 18:13:44 +00:00
recoverdisk sbin: ake use of our rounddown() macro when sys/param.h is available. 2016-05-01 02:24:05 +00:00
resolvconf sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
restore restore(8): Prevent some heap overflows 2017-04-14 00:14:40 +00:00
route Fix userland tools that don't check the format of routing socket 2017-04-16 19:17:10 +00:00
routed Fix userland tools that don't check the format of routing socket 2017-04-16 19:17:10 +00:00
rtsol sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
savecore Fix style and wrap lines to 80 columns in savecore.c. 2017-07-24 21:51:41 +00:00
sconfig sconfig appeared in FreeBSD 5.2. 2016-10-03 00:40:20 +00:00
setkey Add large replay widow support to setkey(8) and libipsec. 2017-04-13 14:44:17 +00:00
shutdown Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
spppcontrol Add META_MODE support. 2015-06-13 19:20:56 +00:00
sunlabel sbin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:33:01 +00:00
swapon Fix late and noauto with geli swap 2017-03-14 12:39:19 +00:00
sysctl Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
tests Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed 2016-05-04 23:20:53 +00:00
tunefs Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
umount Add a new "-N" option to umount(8), that does a forced dismount of an NFS mount 2017-07-29 20:08:25 +00:00
zfsbootcfg Update the "first appeared in" version in several manual pages. 2017-05-24 17:47:49 +00:00
Makefile Remove SUBDIR ordering/uniquifying in *bin/Makefile 2017-07-06 04:15:30 +00:00
Makefile.amd64 Integrate nvmecontrol(8) into the amd64 and i386 builds. 2012-09-17 21:41:38 +00:00
Makefile.arm
Makefile.i386 Integrate nvmecontrol(8) into the amd64 and i386 builds. 2012-09-17 21:41:38 +00:00
Makefile.inc Use src.opts.mk in preference to bsd.own.mk except where we need stuff 2014-05-06 04:22:01 +00:00
Makefile.mips
Makefile.sparc64