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Diffstat (limited to 'fs/exfat/exfat_fs.h')
-rw-r--r--fs/exfat/exfat_fs.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index 324acc57d029..37e8af8042aa 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -101,12 +101,18 @@ enum {
/*
* helpers for block size to dentry size conversion.
*/
-#define EXFAT_B_TO_DEN_IDX(b, sbi) \
- ((b) << ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS))
#define EXFAT_B_TO_DEN(b) ((b) >> DENTRY_SIZE_BITS)
#define EXFAT_DEN_TO_B(b) ((b) << DENTRY_SIZE_BITS)
/*
+ * helpers for cluster size to dentry size conversion.
+ */
+#define EXFAT_CLU_TO_DEN(clu, sbi) \
+ ((clu) << ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS))
+#define EXFAT_DEN_TO_CLU(dentry, sbi) \
+ ((dentry) >> ((sbi)->cluster_size_bits - DENTRY_SIZE_BITS))
+
+/*
* helpers for fat entry.
*/
#define FAT_ENT_SIZE (4)