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authorStefan Hajnoczi <stefanha@redhat.com>2014-11-19 14:19:44 +0000
committerKevin Wolf <kwolf@redhat.com>2014-12-10 10:25:30 +0100
commite3442099a2794925dfbe83711cd204caf80eae60 (patch)
tree32e3772050fd618e7665ae4f4b981c61ec5de027 /hw/block/dataplane
parent0b92885420c9cf42da27c63939d388e276a7ddde (diff)
downloadqemu-e3442099a2794925dfbe83711cd204caf80eae60.zip
blockdev: acquire AioContext in eject, change, and block_passwd
By acquiring the AioContext we avoid race conditions with the dataplane thread which may also be accessing the BlockDriverState. Fix up eject, change, and block_passwd in a single patch because qmp_eject() and qmp_change_blockdev() both call eject_device(). Also fix block_passwd while we're tackling a command that takes a block encryption password. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/block/dataplane')
-rw-r--r--hw/block/dataplane/virtio-blk.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index 5ab64c5c42..2548113978 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -198,6 +198,7 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *conf,
blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_DRIVE_DEL, s->blocker);
blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_BACKUP_SOURCE, s->blocker);
blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_COMMIT, s->blocker);
+ blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_EJECT, s->blocker);
blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_INTERNAL_SNAPSHOT_DELETE,
s->blocker);
blk_op_unblock(conf->conf.blk, BLOCK_OP_TYPE_MIRROR, s->blocker);