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qga: improve fsfreeze documentations 

Some users find the fsfreeze behaviour confusing. Add some notes about
invalid mount points and Windows usage.

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1436976

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Marc-André Lureau 2017-04-03 11:54:38 +02:00 committed by Michael Roth
parent 0a3d197a71
commit 1dbfbc17fe
1 changed files with 10 additions and 2 deletions
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12
qga/qapi-schema.json
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@ -426,7 +426,13 @@
##
# @guest-fsfreeze-freeze:
#
# Sync and freeze all freezable, local guest filesystems
# Sync and freeze all freezable, local guest filesystems. If this
# command succeeded, you may call @guest-fsfreeze-thaw later to
# unfreeze.
#
# Note: On Windows, the command is implemented with the help of a
# Volume Shadow-copy Service DLL helper. The frozen state is limited
# for up to 10 seconds by VSS.
#
# Returns: Number of file systems currently frozen. On error, all filesystems
# will be thawed.
@ -439,10 +445,12 @@
##
# @guest-fsfreeze-freeze-list:
#
# Sync and freeze specified guest filesystems
# Sync and freeze specified guest filesystems.
# See also @guest-fsfreeze-freeze.
#
# @mountpoints: an array of mountpoints of filesystems to be frozen.
# If omitted, every mounted filesystem is frozen.
# Invalid mount points are ignored.
#
# Returns: Number of file systems currently frozen. On error, all filesystems
# will be thawed.