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-rw-r--r--block.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/block.h b/block.h
index db131a3438..5f6438010f 100644
--- a/block.h
+++ b/block.h
@@ -35,7 +35,7 @@ typedef struct QEMUSnapshotInfo {
 #define BDRV_O_NO_BACKING  0x0100 /* don't open the backing file */
 #define BDRV_O_NO_FLUSH    0x0200 /* disable flushing on this disk */
 
-#define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_CACHE_WB)
+#define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH)
 
 #define BDRV_SECTOR_BITS   9
 #define BDRV_SECTOR_SIZE   (1ULL << BDRV_SECTOR_BITS)