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block: Drop permissions when migration completes

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With image locking, permissions affect other qemu processes as well. We
want to be sure that the destination can run, so let's drop permissions
on the source when migration completes.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf
2017-05-04 18:52:38 +02:00
parent 4417ab7adf
commit cfa1a5723f
3 changed files with 40 additions and 4 deletions
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7
include/block/block_int.h
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@@ -473,10 +473,11 @@ struct BdrvChildRole {
void (*drained_begin)(BdrvChild *child);
void (*drained_end)(BdrvChild *child);
/* Notifies the parent that the child has been activated (e.g. when
* migration is completing) and it can start requesting permissions and
* doing I/O on it. */
/* Notifies the parent that the child has been activated/inactivated (e.g.
* when migration is completing) and it can start/stop requesting
* permissions and doing I/O on it. */
void (*activate)(BdrvChild *child, Error **errp);
int (*inactivate)(BdrvChild *child);
void (*attach)(BdrvChild *child);
void (*detach)(BdrvChild *child);