void umsdos_lookup_patch_new(struct dentry *dentry, struct umsdos_info *info)
{
struct inode *inode = dentry->d_inode;
struct umsdos_dirent *entry = &info->entry;
/*
* This part of the initialization depends only on i_patched.
*/
if (inode->u.umsdos_i.i_patched)
goto out;
inode->u.umsdos_i.i_patched = 1;
if (S_ISREG (entry->mode))
entry->mtime = inode->i_mtime;
inode->i_mode = entry->mode;
inode->i_rdev = to_kdev_t (entry->rdev);
inode->i_atime = entry->atime;
inode->i_ctime = entry->ctime;
inode->i_mtime = entry->mtime;
inode->i_uid = entry->uid;
inode->i_gid = entry->gid;
/* #Specification: umsdos / i_nlink
* The nlink field of an inode is maintained by the MSDOS file system
* for directory and by UMSDOS for other files. The logic is that
* MSDOS is already figuring out what to do for directories and
* does nothing for other files. For MSDOS, there are no hard links
* so all file carry nlink==1. UMSDOS use some info in the
* EMD file to plug the correct value.
*/
if (!S_ISDIR (entry->mode)) {
if (entry->nlink > 0) {
inode->i_nlink = entry->nlink;
} else {
printk (KERN_ERR
"UMSDOS: lookup_patch entry->nlink < 1 ???\n");
}
}
/*
* The mode may have changed, so patch the inode again.
*/
umsdos_patch_dentry_inode(dentry, info->f_pos);
umsdos_set_dirinfo_new(dentry, info->f_pos);
out:
return;
}
/* #Specification: pseudo root / DOS/..
* In the real root directory (c:\), the directory ..
* is the pseudo root (c:\linux).
*/
struct dentry *umsdos_rlookup_x ( struct inode *dir, struct dentry *dentry, int nopseudo)
{
struct dentry *ret;
if (saved_root && dir == saved_root->d_inode && !nopseudo &&
dentry->d_name.len == UMSDOS_PSDROOT_LEN &&
memcmp (dentry->d_name.name, UMSDOS_PSDROOT_NAME, UMSDOS_PSDROOT_LEN) == 0) {
/* #Specification: pseudo root / DOS/linux
* Even in the real root directory (c:\), the directory
* /linux won't show
*/
ret = ERR_PTR(-ENOENT);
goto out;
}
ret = msdos_lookup (dir, dentry);
if (ret) {
printk(KERN_WARNING
"umsdos_rlookup_x: %s/%s failed, ret=%ld\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
PTR_ERR(ret));
goto out;
}
if (dentry->d_inode) {
/* We must install the proper function table
* depending on whether this is an MS-DOS or
* a UMSDOS directory
*/
Printk ((KERN_DEBUG "umsdos_rlookup_x: patch_dentry_inode %s/%s\n",
dentry->d_parent->d_name.name, dentry->d_name.name));
umsdos_patch_dentry_inode(dentry, 0);
}
out:
/* always install our dentry ops ... */
dentry->d_op = &umsdos_dentry_operations;
return ret;
}
