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-rw-r--r--include/block/nbd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/nbd.h b/include/block/nbd.h
index df1f804338..eeda3ebdf7 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -77,6 +77,8 @@ enum {
/* Maximum size of a single READ/WRITE data buffer */
#define NBD_MAX_BUFFER_SIZE (32 * 1024 * 1024)
+#define NBD_MAX_SECTORS (NBD_MAX_BUFFER_SIZE / BDRV_SECTOR_SIZE)
+
/* Maximum size of an export name. The NBD spec requires 256 and
* suggests that servers support up to 4096, but we stick to only the
* required size so that we can stack-allocate the names, and because