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| author | Tomoki Sekiyama <tomoki.sekiyama@hds.com> | 2013-10-01 17:09:53 -0400 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2013-12-09 14:45:41 -0600 |
| commit | 9388fdb603e69d1c251f9bdfaac575ad3258583a (patch) | |
| tree | 61feb46c31d6aad44f05528f17c84fafa5e8621c /block-migration.c | |
| parent | 68a1ac19a1a24bc47c8c6db1bca7026e2199cc32 (diff) | |
| download | qemu-9388fdb603e69d1c251f9bdfaac575ad3258583a.tar.gz | |
qemu-ga: execute fsfreeze-freeze in reverse order of mounts
Currently, fsfreeze-freeze may cause deadlock if a guest has loopback mounts
of image files in its disk; e.g.:
# mount | grep ^/
/dev/vda1 / type ext4 (rw,noatime,seclabel,data=ordered)
/tmp/disk.img on /mnt type ext4 (rw,relatime,seclabel)
To avoid the deadlock, this freezes filesystems in reverse order of mounts.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
*fix up commit msg
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
(cherry picked from commit e5d9adbdab972a2172815c1174aed3fabcc448f1)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'block-migration.c')
0 files changed, 0 insertions, 0 deletions