[PATCH v4 1/3] linux/types.h: add sector_t and blkcnt_t types

[yegorslists@googlemail.com]

From: Yegor Yefremov <yegorslists@googlemail.com>

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
 include/linux/types.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/types.h b/include/linux/types.h
index 9f8eb67..f64ec4a 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -157,6 +157,22 @@ typedef __u32 __bitwise __wsum;
 #define __aligned_be64 __be64 __attribute__((aligned(8)))
 #define __aligned_le64 __le64 __attribute__((aligned(8)))
 
+/**
+ * The type used for indexing onto a disc or disc partition.
+ *
+ * Linux always considers sectors to be 512 bytes long independently
+ * of the devices real block size.
+ *
+ * blkcnt_t is the type of the inode's block count.
+ */
+#ifdef CONFIG_LBDAF
+typedef u64 sector_t;
+typedef u64 blkcnt_t;
+#else
+typedef unsigned long sector_t;
+typedef unsigned long blkcnt_t;
+#endif
+
 /*
  * The type of an index into the pagecache.
  */
-- 
2.1.4


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