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blockdev: unset inappropriate flags when changing medium 

Most importantly, this removes BDRV_O_TEMPORARY, to avoid unlink()ing an
image which replaces a snapshotted one.

Signed-off-by: Alyssa Milburn <fuzzie@fuzzie.org>
Message-id: 20160206133618.GA16635@li141-249.members.linode.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Alyssa Milburn 2016-02-06 13:36:18 +00:00 committed by Max Reitz
parent d310d85bf4
commit 156abc2f90
1 changed files with 2 additions and 0 deletions
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blockdev.c
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@ -2513,6 +2513,8 @@ void qmp_blockdev_change_medium(const char *device, const char *filename,
}
bdrv_flags = blk_get_open_flags_from_root_state(blk);
bdrv_flags &= ~(BDRV_O_TEMPORARY | BDRV_O_SNAPSHOT | BDRV_O_NO_BACKING |
BDRV_O_PROTOCOL);
if (!has_read_only) {
read_only = BLOCKDEV_CHANGE_READ_ONLY_MODE_RETAIN;