1 files changed, 33 insertions, 17 deletions

diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 757d54d8f1a..cc08f56750d 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -17,6 +17,7 @@
 #define _LINUX_EXT3_FS_H
 
 #include <linux/types.h>
+#include <linux/magic.h>
 
 /*
  * The second extended filesystem constants/structures
@@ -67,11 +68,6 @@
 #define EXT3_GOOD_OLD_FIRST_INO 11
 
 /*
- * The second extended file system magic number
- */
-#define EXT3_SUPER_MAGIC        0xEF53
-
-/*
  * Maximal count of links to a file
  */
 #define EXT3_LINK_MAX           32000
@@ -464,7 +460,7 @@ struct ext3_super_block {
          */
         __u8    s_prealloc_blocks;      /* Nr of blocks to try to preallocate*/
         __u8    s_prealloc_dir_blocks;  /* Nr to preallocate for dirs */
-        __u16   s_reserved_gdt_blocks;  /* Per group desc for online growth */
+        __le16  s_reserved_gdt_blocks;  /* Per group desc for online growth */
         /*
          * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
          */
@@ -477,7 +473,7 @@ struct ext3_super_block {
         __u8    s_reserved_char_pad;
         __u16   s_reserved_word_pad;
         __le32  s_default_mount_opts;
-        __le32  s_first_meta_bg;        /* First metablock block group */
+        __le32  s_first_meta_bg;        /* First metablock block group */
         __u32   s_reserved[190];        /* Padding to the end of the block */
 };
 
@@ -492,6 +488,15 @@ static inline struct ext3_inode_info *EXT3_I(struct inode *inode)
 {
         return container_of(inode, struct ext3_inode_info, vfs_inode);
 }
+
+static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
+{
+        return ino == EXT3_ROOT_INO ||
+                ino == EXT3_JOURNAL_INO ||
+                ino == EXT3_RESIZE_INO ||
+                (ino >= EXT3_FIRST_INO(sb) &&
+                 ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
+}
 #else
 /* Assume that user mode programs are passing in an ext3fs superblock, not
  * a kernel struct super_block.  This will allow us to call the feature-test
@@ -710,6 +715,14 @@ struct dir_private_info {
         __u32           next_hash;
 };
 
+/* calculate the first block number of the group */
+static inline ext3_fsblk_t
+ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
+{
+        return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
+                le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
+}
+
 /*
  * Special error return code only used by dx_probe() and its callers.
  */
@@ -730,14 +743,16 @@ struct dir_private_info {
 /* balloc.c */
 extern int ext3_bg_has_super(struct super_block *sb, int group);
 extern unsigned long ext3_bg_num_gdb(struct super_block *sb, int group);
-extern int ext3_new_block (handle_t *, struct inode *, unsigned long, int *);
-extern int ext3_new_blocks (handle_t *, struct inode *, unsigned long,
-                        unsigned long *, int *);
-extern void ext3_free_blocks (handle_t *, struct inode *, unsigned long,
-                              unsigned long);
-extern void ext3_free_blocks_sb (handle_t *, struct super_block *,
-                                 unsigned long, unsigned long, int *);
-extern unsigned long ext3_count_free_blocks (struct super_block *);
+extern ext3_fsblk_t ext3_new_block (handle_t *handle, struct inode *inode,
+                        ext3_fsblk_t goal, int *errp);
+extern ext3_fsblk_t ext3_new_blocks (handle_t *handle, struct inode *inode,
+                        ext3_fsblk_t goal, unsigned long *count, int *errp);
+extern void ext3_free_blocks (handle_t *handle, struct inode *inode,
+                        ext3_fsblk_t block, unsigned long count);
+extern void ext3_free_blocks_sb (handle_t *handle, struct super_block *sb,
+                                 ext3_fsblk_t block, unsigned long count,
+                                unsigned long *pdquot_freed_blocks);
+extern ext3_fsblk_t ext3_count_free_blocks (struct super_block *);
 extern void ext3_check_blocks_bitmap (struct super_block *);
 extern struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
                                                     unsigned int block_group,
@@ -773,7 +788,8 @@ extern unsigned long ext3_count_free (struct buffer_head *, unsigned);
 
 
 /* inode.c */
-int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
+int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
+                struct buffer_head *bh, ext3_fsblk_t blocknr);
 struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
 struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
 int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
@@ -808,7 +824,7 @@ extern int ext3_group_add(struct super_block *sb,
                                 struct ext3_new_group_data *input);
 extern int ext3_group_extend(struct super_block *sb,
                                 struct ext3_super_block *es,
-                                unsigned long n_blocks_count);
+                                ext3_fsblk_t n_blocks_count);
 
 /* super.c */
 extern void ext3_error (struct super_block *, const char *, const char *, ...)