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| author | Kevin Wolf | 2016-05-17 14:51:55 +0200 |
|---|---|---|
| committer | Kevin Wolf | 2016-05-25 19:04:10 +0200 |
| commit | 36fe13317bfc3414745528c6c08cea2904ca49ec (patch) | |
| tree | 5c0d2dab6123311014f8b5e3bae6e9528859e21b /hw/ide/macio.c | |
| parent | block: Make bdrv_drain() use bdrv_drained_begin/end() (diff) | |
| download | qemu-36fe13317bfc3414745528c6c08cea2904ca49ec.tar.gz qemu-36fe13317bfc3414745528c6c08cea2904ca49ec.tar.xz qemu-36fe13317bfc3414745528c6c08cea2904ca49ec.zip | |
block: Fix reconfiguring graph with drained nodes
When changing the BlockDriverState that a BdrvChild points to while the
node is currently drained, we must call the .drained_end() parent
callback. Conversely, when this means attaching a new node that is
already drained, we need to call .drained_begin().
bdrv_root_attach_child() takes now an opaque parameter, which is needed
because the callbacks must also be called if we're attaching a new child
to the BlockBackend when the root node is already drained, and they need
a way to identify the BlockBackend. Previously, child->opaque was set
too late and the callbacks would still see it as NULL.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Diffstat (limited to 'hw/ide/macio.c')
0 files changed, 0 insertions, 0 deletions