/*
* Calculate the number of 512byte blocks used.
*/
-static inline unsigned long nfs_calc_block_size(u64 tsize)
+static inline blkcnt_t nfs_calc_block_size(u64 tsize)
{
- loff_t used = (tsize + 511) >> 9;
+ blkcnt_t used = (tsize + 511) >> 9;
return (used > ULONG_MAX) ? ULONG_MAX : used;
}
}
return 0;
}
+
+/*
+ * Determine the number of pages in an array of length 'len' and
+ * with a base offset of 'base'
+ */
+static inline
+unsigned int nfs_page_array_len(unsigned int base, size_t len)
+{
+ return ((unsigned long)len + (unsigned long)base +
+ PAGE_SIZE - 1) >> PAGE_SHIFT;
+}
+