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[Qemu-devel] [PATCH] block: keep bitmap if incremental backup job is can


From: Stefan Hajnoczi
Subject: [Qemu-devel] [PATCH] block: keep bitmap if incremental backup job is cancelled
Date: Mon, 15 Jun 2015 16:02:14 +0100

Reclaim the dirty bitmap if an incremental backup block job is
cancelled.  The ret variable may be 0 when the job is cancelled so it's
not enough to check ret < 0.

Reviewed-by: John Snow <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 block/backup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/backup.c b/block/backup.c
index d3f648d..c1ad975 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -430,7 +430,7 @@ static void coroutine_fn backup_run(void *opaque)
 
     if (job->sync_bitmap) {
         BdrvDirtyBitmap *bm;
-        if (ret < 0) {
+        if (ret < 0 || block_job_is_cancelled(&job->common)) {
             /* Merge the successor back into the parent, delete nothing. */
             bm = bdrv_reclaim_dirty_bitmap(bs, job->sync_bitmap, NULL);
             assert(bm);
-- 
2.4.3




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