[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols

Mingming Cao originally did this work, and Shaggy reproduced it using some
scripts from her.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 115 insertions, 115 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index e45dbd651736..4b92066ca08f 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1,5 +1,5 @@
 /*
- *  linux/fs/ext3/ialloc.c
+ *  linux/fs/ext4/ialloc.c
  *
  * Copyright (C) 1992, 1993, 1994, 1995
  * Remy Card (card@masi.ibp.fr)
@@ -15,8 +15,8 @@
 #include <linux/time.h>
 #include <linux/fs.h>
 #include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/quotaops.h>
@@ -53,16 +53,16 @@
 static struct buffer_head *
 read_inode_bitmap(struct super_block * sb, unsigned long block_group)
 {
-        struct ext3_group_desc *desc;
+        struct ext4_group_desc *desc;
         struct buffer_head *bh = NULL;
 
-        desc = ext3_get_group_desc(sb, block_group, NULL);
+        desc = ext4_get_group_desc(sb, block_group, NULL);
         if (!desc)
                 goto error_out;
 
         bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap));
         if (!bh)
-                ext3_error(sb, "read_inode_bitmap",
+                ext4_error(sb, "read_inode_bitmap",
                             "Cannot read inode bitmap - "
                             "block_group = %lu, inode_bitmap = %u",
                             block_group, le32_to_cpu(desc->bg_inode_bitmap));
@@ -86,7 +86,7 @@ error_out:
  * though), and then we'd have two inodes sharing the
  * same inode number and space on the harddisk.
  */
-void ext3_free_inode (handle_t *handle, struct inode * inode)
+void ext4_free_inode (handle_t *handle, struct inode * inode)
 {
         struct super_block * sb = inode->i_sb;
         int is_directory;
@@ -95,36 +95,36 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
         struct buffer_head *bh2;
         unsigned long block_group;
         unsigned long bit;
-        struct ext3_group_desc * gdp;
-        struct ext3_super_block * es;
-        struct ext3_sb_info *sbi;
+        struct ext4_group_desc * gdp;
+        struct ext4_super_block * es;
+        struct ext4_sb_info *sbi;
         int fatal = 0, err;
 
         if (atomic_read(&inode->i_count) > 1) {
-                printk ("ext3_free_inode: inode has count=%d\n",
+                printk ("ext4_free_inode: inode has count=%d\n",
                                         atomic_read(&inode->i_count));
                 return;
         }
         if (inode->i_nlink) {
-                printk ("ext3_free_inode: inode has nlink=%d\n",
+                printk ("ext4_free_inode: inode has nlink=%d\n",
                         inode->i_nlink);
                 return;
         }
         if (!sb) {
-                printk("ext3_free_inode: inode on nonexistent device\n");
+                printk("ext4_free_inode: inode on nonexistent device\n");
                 return;
         }
-        sbi = EXT3_SB(sb);
+        sbi = EXT4_SB(sb);
 
         ino = inode->i_ino;
-        ext3_debug ("freeing inode %lu\n", ino);
+        ext4_debug ("freeing inode %lu\n", ino);
 
         /*
          * Note: we must free any quota before locking the superblock,
          * as writing the quota to disk may need the lock as well.
          */
         DQUOT_INIT(inode);
-        ext3_xattr_delete_inode(handle, inode);
+        ext4_xattr_delete_inode(handle, inode);
         DQUOT_FREE_INODE(inode);
         DQUOT_DROP(inode);
 
@@ -133,33 +133,33 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
         /* Do this BEFORE marking the inode not in use or returning an error */
         clear_inode (inode);
 
-        es = EXT3_SB(sb)->s_es;
-        if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
-                ext3_error (sb, "ext3_free_inode",
+        es = EXT4_SB(sb)->s_es;
+        if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+                ext4_error (sb, "ext4_free_inode",
                             "reserved or nonexistent inode %lu", ino);
                 goto error_return;
         }
-        block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
-        bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+        block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
+        bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
         bitmap_bh = read_inode_bitmap(sb, block_group);
         if (!bitmap_bh)
                 goto error_return;
 
         BUFFER_TRACE(bitmap_bh, "get_write_access");
-        fatal = ext3_journal_get_write_access(handle, bitmap_bh);
+        fatal = ext4_journal_get_write_access(handle, bitmap_bh);
         if (fatal)
                 goto error_return;
 
         /* Ok, now we can actually update the inode bitmaps.. */
-        if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
+        if (!ext4_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
                                         bit, bitmap_bh->b_data))
-                ext3_error (sb, "ext3_free_inode",
+                ext4_error (sb, "ext4_free_inode",
                               "bit already cleared for inode %lu", ino);
         else {
-                gdp = ext3_get_group_desc (sb, block_group, &bh2);
+                gdp = ext4_get_group_desc (sb, block_group, &bh2);
 
                 BUFFER_TRACE(bh2, "get_write_access");
-                fatal = ext3_journal_get_write_access(handle, bh2);
+                fatal = ext4_journal_get_write_access(handle, bh2);
                 if (fatal) goto error_return;
 
                 if (gdp) {
@@ -175,18 +175,18 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
                                 percpu_counter_dec(&sbi->s_dirs_counter);
 
                 }
-                BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
-                err = ext3_journal_dirty_metadata(handle, bh2);
+                BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
+                err = ext4_journal_dirty_metadata(handle, bh2);
                 if (!fatal) fatal = err;
         }
-        BUFFER_TRACE(bitmap_bh, "call ext3_journal_dirty_metadata");
-        err = ext3_journal_dirty_metadata(handle, bitmap_bh);
+        BUFFER_TRACE(bitmap_bh, "call ext4_journal_dirty_metadata");
+        err = ext4_journal_dirty_metadata(handle, bitmap_bh);
         if (!fatal)
                 fatal = err;
         sb->s_dirt = 1;
 error_return:
         brelse(bitmap_bh);
-        ext3_std_error(sb, fatal);
+        ext4_std_error(sb, fatal);
 }
 
 /*
@@ -201,17 +201,17 @@ error_return:
  */
 static int find_group_dir(struct super_block *sb, struct inode *parent)
 {
-        int ngroups = EXT3_SB(sb)->s_groups_count;
+        int ngroups = EXT4_SB(sb)->s_groups_count;
         unsigned int freei, avefreei;
-        struct ext3_group_desc *desc, *best_desc = NULL;
+        struct ext4_group_desc *desc, *best_desc = NULL;
         struct buffer_head *bh;
         int group, best_group = -1;
 
-        freei = percpu_counter_read_positive(&EXT3_SB(sb)->s_freeinodes_counter);
+        freei = percpu_counter_read_positive(&EXT4_SB(sb)->s_freeinodes_counter);
         avefreei = freei / ngroups;
 
         for (group = 0; group < ngroups; group++) {
-                desc = ext3_get_group_desc (sb, group, &bh);
+                desc = ext4_get_group_desc (sb, group, &bh);
                 if (!desc || !desc->bg_free_inodes_count)
                         continue;
                 if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
@@ -256,19 +256,19 @@ static int find_group_dir(struct super_block *sb, struct inode *parent)
 
 static int find_group_orlov(struct super_block *sb, struct inode *parent)
 {
-        int parent_group = EXT3_I(parent)->i_block_group;
-        struct ext3_sb_info *sbi = EXT3_SB(sb);
-        struct ext3_super_block *es = sbi->s_es;
+        int parent_group = EXT4_I(parent)->i_block_group;
+        struct ext4_sb_info *sbi = EXT4_SB(sb);
+        struct ext4_super_block *es = sbi->s_es;
         int ngroups = sbi->s_groups_count;
-        int inodes_per_group = EXT3_INODES_PER_GROUP(sb);
+        int inodes_per_group = EXT4_INODES_PER_GROUP(sb);
         unsigned int freei, avefreei;
-        ext3_fsblk_t freeb, avefreeb;
-        ext3_fsblk_t blocks_per_dir;
+        ext4_fsblk_t freeb, avefreeb;
+        ext4_fsblk_t blocks_per_dir;
         unsigned int ndirs;
         int max_debt, max_dirs, min_inodes;
-        ext3_grpblk_t min_blocks;
+        ext4_grpblk_t min_blocks;
         int group = -1, i;
-        struct ext3_group_desc *desc;
+        struct ext4_group_desc *desc;
         struct buffer_head *bh;
 
         freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
@@ -278,7 +278,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
         ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
 
         if ((parent == sb->s_root->d_inode) ||
-            (EXT3_I(parent)->i_flags & EXT3_TOPDIR_FL)) {
+            (EXT4_I(parent)->i_flags & EXT4_TOPDIR_FL)) {
                 int best_ndir = inodes_per_group;
                 int best_group = -1;
 
@@ -286,7 +286,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
                 parent_group = (unsigned)group % ngroups;
                 for (i = 0; i < ngroups; i++) {
                         group = (parent_group + i) % ngroups;
-                        desc = ext3_get_group_desc (sb, group, &bh);
+                        desc = ext4_get_group_desc (sb, group, &bh);
                         if (!desc || !desc->bg_free_inodes_count)
                                 continue;
                         if (le16_to_cpu(desc->bg_used_dirs_count) >= best_ndir)
@@ -307,9 +307,9 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
 
         max_dirs = ndirs / ngroups + inodes_per_group / 16;
         min_inodes = avefreei - inodes_per_group / 4;
-        min_blocks = avefreeb - EXT3_BLOCKS_PER_GROUP(sb) / 4;
+        min_blocks = avefreeb - EXT4_BLOCKS_PER_GROUP(sb) / 4;
 
-        max_debt = EXT3_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext3_fsblk_t)BLOCK_COST);
+        max_debt = EXT4_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext4_fsblk_t)BLOCK_COST);
         if (max_debt * INODE_COST > inodes_per_group)
                 max_debt = inodes_per_group / INODE_COST;
         if (max_debt > 255)
@@ -319,7 +319,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
 
         for (i = 0; i < ngroups; i++) {
                 group = (parent_group + i) % ngroups;
-                desc = ext3_get_group_desc (sb, group, &bh);
+                desc = ext4_get_group_desc (sb, group, &bh);
                 if (!desc || !desc->bg_free_inodes_count)
                         continue;
                 if (le16_to_cpu(desc->bg_used_dirs_count) >= max_dirs)
@@ -334,7 +334,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
 fallback:
         for (i = 0; i < ngroups; i++) {
                 group = (parent_group + i) % ngroups;
-                desc = ext3_get_group_desc (sb, group, &bh);
+                desc = ext4_get_group_desc (sb, group, &bh);
                 if (!desc || !desc->bg_free_inodes_count)
                         continue;
                 if (le16_to_cpu(desc->bg_free_inodes_count) >= avefreei)
@@ -355,9 +355,9 @@ fallback:
 
 static int find_group_other(struct super_block *sb, struct inode *parent)
 {
-        int parent_group = EXT3_I(parent)->i_block_group;
-        int ngroups = EXT3_SB(sb)->s_groups_count;
-        struct ext3_group_desc *desc;
+        int parent_group = EXT4_I(parent)->i_block_group;
+        int ngroups = EXT4_SB(sb)->s_groups_count;
+        struct ext4_group_desc *desc;
         struct buffer_head *bh;
         int group, i;
 
@@ -365,7 +365,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
          * Try to place the inode in its parent directory
          */
         group = parent_group;
-        desc = ext3_get_group_desc (sb, group, &bh);
+        desc = ext4_get_group_desc (sb, group, &bh);
         if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
                         le16_to_cpu(desc->bg_free_blocks_count))
                 return group;
@@ -389,7 +389,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
                 group += i;
                 if (group >= ngroups)
                         group -= ngroups;
-                desc = ext3_get_group_desc (sb, group, &bh);
+                desc = ext4_get_group_desc (sb, group, &bh);
                 if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
                                 le16_to_cpu(desc->bg_free_blocks_count))
                         return group;
@@ -403,7 +403,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
         for (i = 0; i < ngroups; i++) {
                 if (++group >= ngroups)
                         group = 0;
-                desc = ext3_get_group_desc (sb, group, &bh);
+                desc = ext4_get_group_desc (sb, group, &bh);
                 if (desc && le16_to_cpu(desc->bg_free_inodes_count))
                         return group;
         }
@@ -421,7 +421,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
  * For other inodes, search forward from the parent directory's block
  * group to find a free inode.
  */
-struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
+struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
 {
         struct super_block *sb;
         struct buffer_head *bitmap_bh = NULL;
@@ -429,10 +429,10 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
         int group;
         unsigned long ino = 0;
         struct inode * inode;
-        struct ext3_group_desc * gdp = NULL;
-        struct ext3_super_block * es;
-        struct ext3_inode_info *ei;
-        struct ext3_sb_info *sbi;
+        struct ext4_group_desc * gdp = NULL;
+        struct ext4_super_block * es;
+        struct ext4_inode_info *ei;
+        struct ext4_sb_info *sbi;
         int err = 0;
         struct inode *ret;
         int i;
@@ -445,9 +445,9 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
         inode = new_inode(sb);
         if (!inode)
                 return ERR_PTR(-ENOMEM);
-        ei = EXT3_I(inode);
+        ei = EXT4_I(inode);
 
-        sbi = EXT3_SB(sb);
+        sbi = EXT4_SB(sb);
         es = sbi->s_es;
         if (S_ISDIR(mode)) {
                 if (test_opt (sb, OLDALLOC))
@@ -464,7 +464,7 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
         for (i = 0; i < sbi->s_groups_count; i++) {
                 err = -EIO;
 
-                gdp = ext3_get_group_desc(sb, group, &bh2);
+                gdp = ext4_get_group_desc(sb, group, &bh2);
                 if (!gdp)
                         goto fail;
 
@@ -476,21 +476,21 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
                 ino = 0;
 
 repeat_in_this_group:
-                ino = ext3_find_next_zero_bit((unsigned long *)
-                                bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);
-                if (ino < EXT3_INODES_PER_GROUP(sb)) {
+                ino = ext4_find_next_zero_bit((unsigned long *)
+                                bitmap_bh->b_data, EXT4_INODES_PER_GROUP(sb), ino);
+                if (ino < EXT4_INODES_PER_GROUP(sb)) {
 
                         BUFFER_TRACE(bitmap_bh, "get_write_access");
-                        err = ext3_journal_get_write_access(handle, bitmap_bh);
+                        err = ext4_journal_get_write_access(handle, bitmap_bh);
                         if (err)
                                 goto fail;
 
-                        if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),
+                        if (!ext4_set_bit_atomic(sb_bgl_lock(sbi, group),
                                                 ino, bitmap_bh->b_data)) {
                                 /* we won it */
                                 BUFFER_TRACE(bitmap_bh,
-                                        "call ext3_journal_dirty_metadata");
-                                err = ext3_journal_dirty_metadata(handle,
+                                        "call ext4_journal_dirty_metadata");
+                                err = ext4_journal_dirty_metadata(handle,
                                                                 bitmap_bh);
                                 if (err)
                                         goto fail;
@@ -499,7 +499,7 @@ repeat_in_this_group:
                         /* we lost it */
                         journal_release_buffer(handle, bitmap_bh);
 
-                        if (++ino < EXT3_INODES_PER_GROUP(sb))
+                        if (++ino < EXT4_INODES_PER_GROUP(sb))
                                 goto repeat_in_this_group;
                 }
 
@@ -517,9 +517,9 @@ repeat_in_this_group:
         goto out;
 
 got:
-        ino += group * EXT3_INODES_PER_GROUP(sb) + 1;
-        if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
-                ext3_error (sb, "ext3_new_inode",
+        ino += group * EXT4_INODES_PER_GROUP(sb) + 1;
+        if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+                ext4_error (sb, "ext4_new_inode",
                             "reserved inode or inode > inodes count - "
                             "block_group = %d, inode=%lu", group, ino);
                 err = -EIO;
@@ -527,7 +527,7 @@ got:
         }
 
         BUFFER_TRACE(bh2, "get_write_access");
-        err = ext3_journal_get_write_access(handle, bh2);
+        err = ext4_journal_get_write_access(handle, bh2);
         if (err) goto fail;
         spin_lock(sb_bgl_lock(sbi, group));
         gdp->bg_free_inodes_count =
@@ -537,8 +537,8 @@ got:
                         cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
         }
         spin_unlock(sb_bgl_lock(sbi, group));
-        BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
-        err = ext3_journal_dirty_metadata(handle, bh2);
+        BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
+        err = ext4_journal_dirty_metadata(handle, bh2);
         if (err) goto fail;
 
         percpu_counter_dec(&sbi->s_freeinodes_counter);
@@ -566,13 +566,13 @@ got:
         ei->i_dir_start_lookup = 0;
         ei->i_disksize = 0;
 
-        ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
+        ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
         if (S_ISLNK(mode))
-                ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
+                ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
         /* dirsync only applies to directories */
         if (!S_ISDIR(mode))
-                ei->i_flags &= ~EXT3_DIRSYNC_FL;
-#ifdef EXT3_FRAGMENTS
+                ei->i_flags &= ~EXT4_DIRSYNC_FL;
+#ifdef EXT4_FRAGMENTS
         ei->i_faddr = 0;
         ei->i_frag_no = 0;
         ei->i_frag_size = 0;
@@ -583,7 +583,7 @@ got:
         ei->i_block_alloc_info = NULL;
         ei->i_block_group = group;
 
-        ext3_set_inode_flags(inode);
+        ext4_set_inode_flags(inode);
         if (IS_DIRSYNC(inode))
                 handle->h_sync = 1;
         insert_inode_hash(inode);
@@ -591,10 +591,10 @@ got:
         inode->i_generation = sbi->s_next_generation++;
         spin_unlock(&sbi->s_next_gen_lock);
 
-        ei->i_state = EXT3_STATE_NEW;
+        ei->i_state = EXT4_STATE_NEW;
         ei->i_extra_isize =
-                (EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
-                sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
+                (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) ?
+                sizeof(struct ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE : 0;
 
         ret = inode;
         if(DQUOT_ALLOC_INODE(inode)) {
@@ -602,24 +602,24 @@ got:
                 goto fail_drop;
         }
 
-        err = ext3_init_acl(handle, inode, dir);
+        err = ext4_init_acl(handle, inode, dir);
         if (err)
                 goto fail_free_drop;
 
-        err = ext3_init_security(handle,inode, dir);
+        err = ext4_init_security(handle,inode, dir);
         if (err)
                 goto fail_free_drop;
 
-        err = ext3_mark_inode_dirty(handle, inode);
+        err = ext4_mark_inode_dirty(handle, inode);
         if (err) {
-                ext3_std_error(sb, err);
+                ext4_std_error(sb, err);
                 goto fail_free_drop;
         }
 
-        ext3_debug("allocating inode %lu\n", inode->i_ino);
+        ext4_debug("allocating inode %lu\n", inode->i_ino);
         goto really_out;
 fail:
-        ext3_std_error(sb, err);
+        ext4_std_error(sb, err);
 out:
         iput(inode);
         ret = ERR_PTR(err);
@@ -640,9 +640,9 @@ fail_drop:
 }
 
 /* Verify that we are loading a valid orphan from disk */
-struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
+struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
 {
-        unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
+        unsigned long max_ino = le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count);
         unsigned long block_group;
         int bit;
         struct buffer_head *bitmap_bh = NULL;
@@ -650,16 +650,16 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
 
         /* Error cases - e2fsck has already cleaned up for us */
         if (ino > max_ino) {
-                ext3_warning(sb, __FUNCTION__,
+                ext4_warning(sb, __FUNCTION__,
                              "bad orphan ino %lu!  e2fsck was run?", ino);
                 goto out;
         }
 
-        block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
-        bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+        block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
+        bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
         bitmap_bh = read_inode_bitmap(sb, block_group);
         if (!bitmap_bh) {
-                ext3_warning(sb, __FUNCTION__,
+                ext4_warning(sb, __FUNCTION__,
                              "inode bitmap error for orphan %lu", ino);
                 goto out;
         }
@@ -668,14 +668,14 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
          * is a valid orphan (no e2fsck run on fs).  Orphans also include
          * inodes that were being truncated, so we can't check i_nlink==0.
          */
-        if (!ext3_test_bit(bit, bitmap_bh->b_data) ||
+        if (!ext4_test_bit(bit, bitmap_bh->b_data) ||
                         !(inode = iget(sb, ino)) || is_bad_inode(inode) ||
                         NEXT_ORPHAN(inode) > max_ino) {
-                ext3_warning(sb, __FUNCTION__,
+                ext4_warning(sb, __FUNCTION__,
                              "bad orphan inode %lu!  e2fsck was run?", ino);
-                printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
+                printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
                        bit, (unsigned long long)bitmap_bh->b_blocknr,
-                       ext3_test_bit(bit, bitmap_bh->b_data));
+                       ext4_test_bit(bit, bitmap_bh->b_data));
                 printk(KERN_NOTICE "inode=%p\n", inode);
                 if (inode) {
                         printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
@@ -695,22 +695,22 @@ out:
         return inode;
 }
 
-unsigned long ext3_count_free_inodes (struct super_block * sb)
+unsigned long ext4_count_free_inodes (struct super_block * sb)
 {
         unsigned long desc_count;
-        struct ext3_group_desc *gdp;
+        struct ext4_group_desc *gdp;
         int i;
-#ifdef EXT3FS_DEBUG
-        struct ext3_super_block *es;
+#ifdef EXT4FS_DEBUG
+        struct ext4_super_block *es;
         unsigned long bitmap_count, x;
         struct buffer_head *bitmap_bh = NULL;
 
-        es = EXT3_SB(sb)->s_es;
+        es = EXT4_SB(sb)->s_es;
         desc_count = 0;
         bitmap_count = 0;
         gdp = NULL;
-        for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-                gdp = ext3_get_group_desc (sb, i, NULL);
+        for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+                gdp = ext4_get_group_desc (sb, i, NULL);
                 if (!gdp)
                         continue;
                 desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
@@ -719,19 +719,19 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
                 if (!bitmap_bh)
                         continue;
 
-                x = ext3_count_free(bitmap_bh, EXT3_INODES_PER_GROUP(sb) / 8);
+                x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8);
                 printk("group %d: stored = %d, counted = %lu\n",
                         i, le16_to_cpu(gdp->bg_free_inodes_count), x);
                 bitmap_count += x;
         }
         brelse(bitmap_bh);
-        printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
+        printk("ext4_count_free_inodes: stored = %u, computed = %lu, %lu\n",
                 le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
         return desc_count;
 #else
         desc_count = 0;
-        for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-                gdp = ext3_get_group_desc (sb, i, NULL);
+        for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+                gdp = ext4_get_group_desc (sb, i, NULL);
                 if (!gdp)
                         continue;
                 desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
@@ -742,13 +742,13 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
 }
 
 /* Called at mount-time, super-block is locked */
-unsigned long ext3_count_dirs (struct super_block * sb)
+unsigned long ext4_count_dirs (struct super_block * sb)
 {
         unsigned long count = 0;
         int i;
 
-        for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-                struct ext3_group_desc *gdp = ext3_get_group_desc (sb, i, NULL);
+        for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+                struct ext4_group_desc *gdp = ext4_get_group_desc (sb, i, NULL);
                 if (!gdp)
                         continue;
                 count += le16_to_cpu(gdp->bg_used_dirs_count);