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(parent: 946d58b) | patch
block: after creating a live snapshot, make old image read-only
authorJeff Cody <jcody@redhat.com>
Tue, 25 Sep 2012 16:29:39 +0000 (12:29 -0400)
committerKevin Wolf <kwolf@redhat.com>
Fri, 28 Sep 2012 15:51:47 +0000 (17:51 +0200)
commit870f5681c9dbafc738082b1fd48e0cc013bf43c7
tree1bc7e51832d85827111a3d710e692b83b587d7cetree | snapshot
parent946d58be1533bf843b499df12e1d9f97b28245c8commit | diff
block: after creating a live snapshot, make old image read-only

Currently, after a live snapshot of a drive, the image that has
been 'demoted' to be below the new active layer remains r/w.
This patch reopens it read-only.

Note that we do not check for error on the reopen(), because we
will not abort the snapshots if the reopen fails.

This patch depends on the bdrv_reopen() series.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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