[PATCH] ufs2 write: block allocation update

[linux-drm-fsl-dcu.git] / include / linux / ufs_fs.h

diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index d3a4f994a5dcdc15b6e8452a799b97f3da26f72c..44c45449065cd10c8664d8d7e990fb1a41c40ced 100644 (file)
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -40,13 +40,16 @@ typedef __u64 __fs64;
 typedef __u32 __fs32;
 typedef __u16 __fs16;
 #else
+#include <asm/div64.h>
 typedef __u64 __bitwise __fs64;
 typedef __u32 __bitwise __fs32;
 typedef __u16 __bitwise __fs16;
 #endif
 
+#ifdef __KERNEL__
 #include <linux/ufs_fs_i.h>
 #include <linux/ufs_fs_sb.h>
+#endif
 
 #define UFS_BBLOCK 0
 #define UFS_BBSIZE 8192
@@ -261,16 +264,9 @@ typedef __u16 __bitwise __fs16;
  */
 #define        ufs_inotocg(x)          ((x) / uspi->s_ipg)
 #define        ufs_inotocgoff(x)       ((x) % uspi->s_ipg)
-#define        ufs_inotofsba(x)        (ufs_cgimin(ufs_inotocg(x)) + ufs_inotocgoff(x) / uspi->s_inopf)
+#define        ufs_inotofsba(x)        (((u64)ufs_cgimin(ufs_inotocg(x))) + ufs_inotocgoff(x) / uspi->s_inopf)
 #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.
  */
@@ -303,7 +299,7 @@ typedef __u16 __bitwise __fs16;
 #define UFS_MAXMNTLEN 512
 #define UFS2_MAXMNTLEN 468
 #define UFS2_MAXVOLLEN 32
-/* #define UFS_MAXCSBUFS 31 */
+#define UFS_MAXCSBUFS 31
 #define UFS_LINK_MAX 32000
 /*
 #define        UFS2_NOCSPTRS   ((128 / sizeof(void *)) - 4)
@@ -721,6 +717,7 @@ struct ufs_cg_private_info {
        __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;
@@ -754,7 +751,7 @@ struct ufs_sb_private_info {
        __u32   s_npsect;       /* # sectors/track including spares */
        __u32   s_interleave;   /* hardware sector interleave */
        __u32   s_trackskew;    /* sector 0 skew, per track */
-       __u32   s_csaddr;       /* blk addr of cyl grp summary area */
+       __u64   s_csaddr;       /* blk addr of cyl grp summary area */
        __u32   s_cssize;       /* size of cyl grp summary area */
        __u32   s_cgsize;       /* cylinder group size */
        __u32   s_ntrak;        /* tracks per cylinder */
@@ -950,10 +947,10 @@ struct ufs_super_block_third {
 #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);
@@ -1014,6 +1011,22 @@ static inline struct ufs_inode_info *UFS_I(struct inode *inode)
        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 */