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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2021-02-05 19:37:19 +0300
committerEric Blake <eblake@redhat.com>2021-02-12 12:17:08 -0600
commitff789bf5a93cede32a01e648dc010032791c84e1 (patch)
tree4add210aa773b975549e6b63ce484913bcf1174c
parentd00dd63135f7e18ddca2642d1933da1507f3f1cd (diff)
downloadqemu-arm-ff789bf5a93cede32a01e648dc010032791c84e1.tar.gz
block/backup: implement .cancel job handler
Cancel in-flight io on target to not waste the time. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20210205163720.887197-10-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
-rw-r--r--block/backup.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/block/backup.c b/block/backup.c
index cc525d5544..94e6dcd72e 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -35,6 +35,7 @@ typedef struct BackupBlockJob {
BlockJob common;
BlockDriverState *backup_top;
BlockDriverState *source_bs;
+ BlockDriverState *target_bs;
BdrvDirtyBitmap *sync_bitmap;
@@ -329,6 +330,13 @@ static void coroutine_fn backup_set_speed(BlockJob *job, int64_t speed)
}
}
+static void backup_cancel(Job *job)
+{
+ BackupBlockJob *s = container_of(job, BackupBlockJob, common.job);
+
+ bdrv_cancel_in_flight(s->target_bs);
+}
+
static const BlockJobDriver backup_job_driver = {
.job_driver = {
.instance_size = sizeof(BackupBlockJob),
@@ -340,6 +348,7 @@ static const BlockJobDriver backup_job_driver = {
.abort = backup_abort,
.clean = backup_clean,
.pause = backup_pause,
+ .cancel = backup_cancel,
},
.set_speed = backup_set_speed,
};
@@ -528,6 +537,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
job->backup_top = backup_top;
job->source_bs = bs;
+ job->target_bs = target;
job->on_source_error = on_source_error;
job->on_target_error = on_target_error;
job->sync_mode = sync_mode;