#include <linux/init.h>
#include <linux/module.h>
-#include <linux/efs_fs.h>
-#include <linux/efs_vh.h>
-#include <linux/efs_fs_sb.h>
#include <linux/exportfs.h>
#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
+#include "efs.h"
+#include <linux/efs_vh.h>
+#include <linux/efs_fs_sb.h>
+
static int efs_statfs(struct dentry *dentry, struct kstatfs *buf);
static int efs_fill_super(struct super_block *s, void *d, int silent);
kmem_cache_free(efs_inode_cachep, INODE_INFO(inode));
}
-static void init_once(struct kmem_cache *cachep, void *foo)
+static void init_once(void *foo)
{
struct efs_inode_info *ei = (struct efs_inode_info *) foo;
static const struct super_operations efs_superblock_operations = {
.alloc_inode = efs_alloc_inode,
.destroy_inode = efs_destroy_inode,
- .read_inode = efs_read_inode,
.put_super = efs_put_super,
.statfs = efs_statfs,
.remount_fs = efs_remount,
struct efs_sb_info *sb;
struct buffer_head *bh;
struct inode *root;
+ int ret = -EINVAL;
sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
if (!sb)
}
s->s_op = &efs_superblock_operations;
s->s_export_op = &efs_export_ops;
- root = iget(s, EFS_ROOTINODE);
+ root = efs_iget(s, EFS_ROOTINODE);
+ if (IS_ERR(root)) {
+ printk(KERN_ERR "EFS: get root inode failed\n");
+ ret = PTR_ERR(root);
+ goto out_no_fs;
+ }
+
s->s_root = d_alloc_root(root);
-
if (!(s->s_root)) {
- printk(KERN_ERR "EFS: get root inode failed\n");
+ printk(KERN_ERR "EFS: get root dentry failed\n");
iput(root);
+ ret = -ENOMEM;
goto out_no_fs;
}
out_no_fs:
s->s_fs_info = NULL;
kfree(sb);
- return -EINVAL;
+ return ret;
}
static int efs_statfs(struct dentry *dentry, struct kstatfs *buf) {
- struct efs_sb_info *sb = SUPER_INFO(dentry->d_sb);
+ struct super_block *sb = dentry->d_sb;
+ struct efs_sb_info *sbi = SUPER_INFO(sb);
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = EFS_SUPER_MAGIC; /* efs magic number */
buf->f_bsize = EFS_BLOCKSIZE; /* blocksize */
- buf->f_blocks = sb->total_groups * /* total data blocks */
- (sb->group_size - sb->inode_blocks);
- buf->f_bfree = sb->data_free; /* free data blocks */
- buf->f_bavail = sb->data_free; /* free blocks for non-root */
- buf->f_files = sb->total_groups * /* total inodes */
- sb->inode_blocks *
+ buf->f_blocks = sbi->total_groups * /* total data blocks */
+ (sbi->group_size - sbi->inode_blocks);
+ buf->f_bfree = sbi->data_free; /* free data blocks */
+ buf->f_bavail = sbi->data_free; /* free blocks for non-root */
+ buf->f_files = sbi->total_groups * /* total inodes */
+ sbi->inode_blocks *
(EFS_BLOCKSIZE / sizeof(struct efs_dinode));
- buf->f_ffree = sb->inode_free; /* free inodes */
- buf->f_fsid.val[0] = (sb->fs_magic >> 16) & 0xffff; /* fs ID */
- buf->f_fsid.val[1] = sb->fs_magic & 0xffff; /* fs ID */
+ buf->f_ffree = sbi->inode_free; /* free inodes */
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = EFS_MAXNAMELEN; /* max filename length */
return 0;