patch-2.3.51 linux/fs/ext2/super.c

• Lines: 118
• Date: Fri Mar 10 10:48:48 2000
• Orig file: v2.3.50/linux/fs/ext2/super.c
• Orig date: Sat Feb 26 22:31:52 2000

diff -u --recursive --new-file v2.3.50/linux/fs/ext2/super.c linux/fs/ext2/super.c
@@ -116,7 +116,6 @@
 			brelse (sb->u.ext2_sb.s_block_bitmap[i]);
 	brelse (sb->u.ext2_sb.s_sbh);
 
-	MOD_DEC_USE_COUNT;
 	return;
 }
 
@@ -402,12 +401,9 @@
 	set_opt (sb->u.ext2_sb.s_mount_opt, CHECK_NORMAL);
 	if (!parse_options ((char *) data, &sb_block, &resuid, &resgid,
 	    &sb->u.ext2_sb.s_mount_opt)) {
-		sb->s_dev = 0;
 		return NULL;
 	}
 
-	MOD_INC_USE_COUNT;
-	lock_super (sb);
 	set_blocksize (dev, blocksize);
 
 	/*
@@ -421,10 +417,7 @@
 	}
 
 	if (!(bh = bread (dev, logic_sb_block, blocksize))) {
-		sb->s_dev = 0;
-		unlock_super (sb);
 		printk ("EXT2-fs: unable to read superblock\n");
-		MOD_DEC_USE_COUNT;
 		return NULL;
 	}
 	/*
@@ -439,11 +432,8 @@
 			printk ("VFS: Can't find an ext2 filesystem on dev "
 				"%s.\n", bdevname(dev));
 	failed_mount:
-		sb->s_dev = 0;
-		unlock_super (sb);
 		if (bh)
 			brelse(bh);
-		MOD_DEC_USE_COUNT;
 		return NULL;
 	}
 	if (le32_to_cpu(es->s_rev_level) > EXT2_GOOD_OLD_REV) {
@@ -616,7 +606,6 @@
 	sb->u.ext2_sb.s_loaded_inode_bitmaps = 0;
 	sb->u.ext2_sb.s_loaded_block_bitmaps = 0;
 	sb->u.ext2_sb.s_db_per_group = db_count;
-	unlock_super (sb);
 	/*
 	 * set up enough so that it can read an inode
 	 */
@@ -624,7 +613,6 @@
 	sb->s_op = &ext2_sops;
 	sb->s_root = d_alloc_root(iget(sb, EXT2_ROOT_INO));
 	if (!sb->s_root) {
-		sb->s_dev = 0;
 		for (i = 0; i < db_count; i++)
 			if (sb->u.ext2_sb.s_group_desc[i])
 				brelse (sb->u.ext2_sb.s_group_desc[i]);
@@ -632,7 +620,6 @@
 			 db_count * sizeof (struct buffer_head *));
 		brelse (bh);
 		printk ("EXT2-fs: get root inode failed\n");
-		MOD_DEC_USE_COUNT;
 		return NULL;
 	}
 	ext2_setup_super (sb, es);
@@ -725,10 +712,9 @@
 	return 0;
 }
 
-int ext2_statfs (struct super_block * sb, struct statfs * buf, int bufsiz)
+int ext2_statfs (struct super_block * sb, struct statfs * buf)
 {
 	unsigned long overhead;
-	struct statfs tmp;
 	int	ngroups, i;
 
 	if (test_opt (sb, MINIX_DF))
@@ -768,25 +754,20 @@
 			     (2 + sb->u.ext2_sb.s_itb_per_group));
 	}
 
-	tmp.f_type = EXT2_SUPER_MAGIC;
-	tmp.f_bsize = sb->s_blocksize;
-	tmp.f_blocks = le32_to_cpu(sb->u.ext2_sb.s_es->s_blocks_count) - overhead;
-	tmp.f_bfree = ext2_count_free_blocks (sb);
-	tmp.f_bavail = tmp.f_bfree - le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count);
-	if (tmp.f_bfree < le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count))
-		tmp.f_bavail = 0;
-	tmp.f_files = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
-	tmp.f_ffree = ext2_count_free_inodes (sb);
-	tmp.f_namelen = EXT2_NAME_LEN;
-	return copy_to_user(buf, &tmp, bufsiz) ? -EFAULT : 0;
+	buf->f_type = EXT2_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = le32_to_cpu(sb->u.ext2_sb.s_es->s_blocks_count) - overhead;
+	buf->f_bfree = ext2_count_free_blocks (sb);
+	buf->f_bavail = buf->f_bfree - le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count);
+	if (buf->f_bfree < le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count))
+		buf->f_bavail = 0;
+	buf->f_files = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
+	buf->f_ffree = ext2_count_free_inodes (sb);
+	buf->f_namelen = EXT2_NAME_LEN;
+	return 0;
 }
 
-static struct file_system_type ext2_fs_type = {
-	"ext2", 
-	FS_REQUIRES_DEV /* | FS_IBASKET */,	/* ibaskets have unresolved bugs */
-        ext2_read_super, 
-	NULL
-};
+static DECLARE_FSTYPE_DEV(ext2_fs_type, "ext2", ext2_read_super);
 
 static int __init init_ext2_fs(void)
 {