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Sepherosa Ziehau 168fce73b5 hyperv/vss: Add driver and tools for VSS 
VSS stands for "Volume Shadow Copy Service".  Unlike virtual machine
snapshot, it only takes snapshot for the virtual disks, so both
filesystem and applications have to aware of it, and cooperate the
whole VSS process.

This driver exposes two device files to the userland:

    /dev/hv_fsvss_dev

    Normally userland programs should _not_ mess with this device file.
    It is currently used by the hv_vss_daemon(8), which freezes and
    thaws the filesystem.  NOTE: currently only UFS is supported, if
    the system mounts _any_ other filesystems, the hv_vss_daemon(8)
    will veto the VSS process.

    If hv_vss_daemon(8) was disabled, then this device file must be
    opened, and proper ioctls must be issued to keep the VSS working.

    /dev/hv_appvss_dev

    Userland application can opened this device file to receive the
    VSS freeze notification, hold the VSS for a while (mainly to flush
    application data to filesystem), release the VSS process, and
    receive the VSS thaw notification i.e. applications can run again.

    The VSS will still work, even if this device file is not opened.
    However, only filesystem consistency is promised, if this device
    file is not opened or is not operated properly.

hv_vss_daemon(8) is started by devd(8) by default.  It can be disabled
by editting /etc/devd/hyperv.conf.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
Reviewed by:	kib, mckusick
MFC after:	3 weeks
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8224
2016-11-15 02:36:12 +00:00
..
amd Fix mips 32-bit buildworld. 2016-11-14 00:33:03 +00:00
apr Update apr-1.5.1 to 1.5.2 2015-08-09 05:14:25 +00:00
apr-util
atf Fix conversion from C++ std::string into C const char *. 2016-09-29 09:16:02 +00:00
binutils Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
blacklist Make blacklist-helper commands emit a message when successful 2016-10-04 23:10:43 +00:00
bmake Update to bmake-20170818 2016-09-09 01:09:39 +00:00
bsnmp Reply to a snmpEngineID discovery PDU with a Report PDU as per the 2016-11-10 20:51:26 +00:00
byacc MFV: r306687 2016-10-04 22:22:32 +00:00
bzip2 Remove unknown macro 2014-12-26 07:36:42 +00:00
com_err
compiler-rt Update compiler-rt to release_38 branch r261369. 2016-02-21 16:27:55 +00:00
cortex-strings Fix the asm on the memchr and strchr functions. 2016-09-19 14:36:16 +00:00
dialog
diff Fix the wrong format, format specifies type 'int' but the argument has type 2015-06-01 06:14:17 +00:00
dma Import dma 20160929 2016-09-30 23:38:26 +00:00
dtc Silence clang warning about extraneous parenthesis 2015-06-05 17:18:10 +00:00
ee Fix minor syntax and grammar errors in the markup of the ee(1) man page 2015-01-18 17:25:41 +00:00
elftoolchain c++filt: flush output after newline 2016-11-09 15:04:29 +00:00
expat MFV r302260: expat 2.2.0 2016-07-01 05:48:45 +00:00
file MFV r308392: file 5.29. 2016-11-07 15:54:47 +00:00
flex
gcc Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
gcclibs Define libcpp's HAVE_DESIGNATED_INITIALIZERS in a defined and portable 2016-09-05 18:02:37 +00:00
gdb Fix KGDB backtrace on ARM 2016-04-20 17:58:13 +00:00
gdtoa
gperf Convert texinfo to mdoc(7) using texi2mdoc 2015-03-02 11:48:00 +00:00
groff Add SUSv4 reference macro to our groff mdoc. mdocml already supports it. 2016-05-17 09:24:54 +00:00
hyperv/tools hyperv/vss: Add driver and tools for VSS 2016-11-15 02:36:12 +00:00
ipfilter Follow-up to r304953, in which I broke the build: apparently the SOLARIS 2016-08-28 19:35:29 +00:00
jemalloc Update jemalloc to 4.3.1. 2016-11-09 18:42:30 +00:00
ldns Add a script that runs configure for both ldns and drill. 2015-04-27 12:02:16 +00:00
ldns-host Initialize first_serial to 0 in dozonetransfer(..) to fix -Wuninitialized 2016-07-14 06:10:16 +00:00
less MFV r293125: less v481. 2016-01-05 05:25:16 +00:00
libarchive MFV r307859: 2016-10-24 14:08:05 +00:00
libbegemot
libc-pwcache
libc-vis Update to a June 8th snapshot of (un)vis form NetBSD. 2016-06-08 18:21:27 +00:00
libc++ Update libc++ to 3.8.0. Excerpted list of fixes (with upstream revision 2016-05-26 18:52:49 +00:00
libcxxrt Add _US_ACTION_MASK to libcxxrt's arm-specific unwind header. This 2016-09-04 21:48:58 +00:00
libdivsufsort Change bsdiff to use divsufsort suffix sort library instead of qsufsort, 2016-07-25 03:58:19 +00:00
libexecinfo Remove usage of _WITH_DPRINTF 2016-07-30 01:16:06 +00:00
libgnuregex Back out non-collating [a-z] ranges. 2016-07-14 09:45:07 +00:00
libpcap Fix a style(9) bug. 2016-08-03 20:21:58 +00:00
libreadline
libstdc++
libucl Import libucl 20160812 2016-10-01 00:14:01 +00:00
libxo Update libxo to 0.6.3 2016-07-03 01:35:27 +00:00
llvm Pull in r263169 from upstream llvm trunk (by Tim Northover): 2016-11-11 21:01:45 +00:00
mdocml makewhatis: avoid skipping another page after one with no mlinks 2016-10-18 13:37:59 +00:00
mknod
mtree
ncurses In ncurses baudrate definitions, avoid warnings about implicit 2016-08-27 20:33:19 +00:00
netbsd-tests Detect integer overflow and limit the number of positional 2016-10-31 18:38:58 +00:00
netcat MFV r288243: nc from OpenBSD 5.8. 2015-09-27 07:04:16 +00:00
ngatm
ntp MFV r301238: 2016-06-03 08:00:22 +00:00
nvi Update nvi to 2.1.3 which fixes the data corruption when locale conversion 2015-04-10 17:50:28 +00:00
ofed When MAKEOBJDIRPREFIX points to a case-insensitive file system, the 2016-09-24 17:50:11 +00:00
one-true-awk The bug: 2016-09-03 23:04:56 +00:00
openbsm auditdistd: update for sys/capability.h rename in r263232 2016-09-20 12:58:28 +00:00
openpam Restore the upstream (and documented) behavior of searching for modules 2015-09-21 17:26:35 +00:00
openresolv MFV r298167, r300962, r303048: 2016-07-20 03:52:04 +00:00
opie
pam_modules/pam_passwdqc
pf Rename getline with get_line to avoid collision with getline(3) 2016-05-10 11:09:26 +00:00
pjdfstest Better handle filesystems mounted with -o noexec 2016-03-12 19:41:38 +00:00
pnpinfo
sendmail Remove unneeded libutil dependency for sendmail. 2015-11-24 04:19:55 +00:00
serf Update serf from 1.3.7 to 1.3.8. Mostly disables sslv2 and sslv3. 2015-08-09 05:16:14 +00:00
smbfs Add #include <string.h> to mute warning from clang/gcc about implicitly 2016-02-01 07:09:08 +00:00
sqlite3 MFV r304732. 2016-08-24 12:32:24 +00:00
subversion Re-sync the FreeBSD-specific Subversion template with the one from 2016-05-03 18:06:42 +00:00
tcp_wrappers
tcpdump tcpdump: remove sys/capability.h #include 2016-09-19 17:51:56 +00:00
tcsh To mimic system glob, we definitely don't need manual upper/lower hack. 2016-07-14 09:40:42 +00:00
telnet Fix warnings in telnet about invalid constant conversions, e.g.: 2016-08-30 20:27:22 +00:00
tnftp Fix warnings in tnftp about invalid constant conversions, e.g.: 2016-08-30 20:24:50 +00:00
top Add a toggle to display the approximate amount of swap used by each 2016-09-05 08:27:04 +00:00
traceroute The code starts with base + 1 as the first port. Fix to documentation 2015-05-31 12:18:30 +00:00
tzcode Incorporate a change from OpenBSD by millert@OpenBSD.org 2016-10-08 17:46:29 +00:00
tzdata MFV r308265: Update tzdata to 2016i. 2016-11-03 23:34:11 +00:00
unbound Upgrade to Unbound 1.5.10. 2016-09-29 18:24:29 +00:00
unvis
vis Import NetBSD vis(1) mandoc fixes 2015-01-03 23:16:13 +00:00
wpa [wpa] use IFM_IEEE80211_ADHOC for now on FreeBSD for IBSS operation. 2015-11-26 17:28:40 +00:00
xz MFV r291123: 2015-11-21 09:09:25 +00:00