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-rw-r--r--bcache.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/bcache.h b/bcache.h
index 8087092..2e01549 100644
--- a/bcache.h
+++ b/bcache.h
@@ -25,6 +25,8 @@ static const char bcache_magic[] = {
#define SB_SECTOR 8
#define SB_LABEL_SIZE 32
+#define BDEV_DATA_START 16 /* sectors */
+
struct cache_sb {
uint64_t csum;