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-rw-r--r--include/block/block.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 8b0dcdaa70..4e81f2069b 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -116,6 +116,7 @@ typedef struct HDGeometry {
#define BDRV_REQUEST_MAX_SECTORS MIN(SIZE_MAX >> BDRV_SECTOR_BITS, \
INT_MAX >> BDRV_SECTOR_BITS)
+#define BDRV_REQUEST_MAX_BYTES (BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BITS)
/*
* Allocation status flags