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-rw-r--r--include/block/raw-aio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h
index 6799614e56..ba223dd1f1 100644
--- a/include/block/raw-aio.h
+++ b/include/block/raw-aio.h
@@ -40,6 +40,7 @@
 /* AIO flags */
 #define QEMU_AIO_MISALIGNED   0x1000
 #define QEMU_AIO_BLKDEV       0x2000
+#define QEMU_AIO_NO_FALLBACK  0x4000
 
 
 /* linux-aio.c - Linux native implementation */