[PATCH] ufs2 write: block allocation update
Patch adds ability to work with 64bit metadata, this made by replacing work
with 32bit pointers by inline functions.
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 24ce398..44c4544 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -40,6 +40,7 @@
typedef __u32 __fs32;
typedef __u16 __fs16;
#else
+#include <asm/div64.h>
typedef __u64 __bitwise __fs64;
typedef __u32 __bitwise __fs32;
typedef __u16 __bitwise __fs16;
@@ -267,13 +268,6 @@
#define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
/*
- * Give cylinder group number for a file system block.
- * Give cylinder group block number for a file system block.
- */
-#define ufs_dtog(d) ((d) / uspi->s_fpg)
-#define ufs_dtogd(d) ((d) % uspi->s_fpg)
-
-/*
* Compute the cylinder and rotational position of a cyl block addr.
*/
#define ufs_cbtocylno(bno) \
@@ -723,6 +717,7 @@
__u32 c_nclusterblks; /* number of clusters this cg */
};
+
struct ufs_sb_private_info {
struct ufs_buffer_head s_ubh; /* buffer containing super block */
struct ufs_csum_core cs_total;
@@ -952,10 +947,10 @@
#ifdef __KERNEL__
/* balloc.c */
-extern void ufs_free_fragments (struct inode *, unsigned, unsigned);
-extern void ufs_free_blocks (struct inode *, unsigned, unsigned);
-extern unsigned ufs_new_fragments(struct inode *, __fs32 *, unsigned, unsigned,
- unsigned, int *, struct page *);
+extern void ufs_free_fragments (struct inode *, u64, unsigned);
+extern void ufs_free_blocks (struct inode *, u64, unsigned);
+extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
+ unsigned, int *, struct page *);
/* cylinder.c */
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
@@ -1016,6 +1011,22 @@
return container_of(inode, struct ufs_inode_info, vfs_inode);
}
+/*
+ * Give cylinder group number for a file system block.
+ * Give cylinder group block number for a file system block.
+ */
+/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
+static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
+{
+ do_div(b, uspi->s_fpg);
+ return b;
+}
+/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
+static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
+{
+ return do_div(b, uspi->s_fpg);
+}
+
#endif /* __KERNEL__ */
#endif /* __LINUX_UFS_FS_H */