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[Qemu-block] [PULL for-2.4 3/5] block: keep bitmap if incremental backup


From: Jeff Cody
Subject: [Qemu-block] [PULL for-2.4 3/5] block: keep bitmap if incremental backup job is cancelled
Date: Tue, 14 Jul 2015 22:26:55 -0400

From: Stefan Hajnoczi <address@hidden>

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>
Message-id: address@hidden
Signed-off-by: Jeff Cody <address@hidden>
---
 block/backup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/backup.c b/block/backup.c
index d3c7d9f..965654d 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -431,7 +431,7 @@ 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);
-- 
1.9.3




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