示例#1
0
文件: inode.c 项目: dmgerman/original
struct inode * proc_get_inode(struct super_block * sb, int ino,
				struct proc_dir_entry * de)
{
	struct inode * inode;

	/*
	 * Increment the use count so the dir entry can't disappear.
	 */
	de_get(de);
#if 1
/* shouldn't ever happen */
if (de && de->deleted)
printk("proc_iget: using deleted entry %s, count=%d\n", de->name, atomic_read(&de->count));
#endif

	inode = iget(sb, ino);
	if (!inode)
		goto out_fail;
	
	inode->u.generic_ip = (void *) de;
	if (de) {
		if (de->mode) {
			inode->i_mode = de->mode;
			inode->i_uid = de->uid;
			inode->i_gid = de->gid;
		}
		if (de->size)
			inode->i_size = de->size;
		if (de->nlink)
			inode->i_nlink = de->nlink;
		if (de->owner)
			__MOD_INC_USE_COUNT(de->owner);
		if (S_ISBLK(de->mode)||S_ISCHR(de->mode)||S_ISFIFO(de->mode))
			init_special_inode(inode,de->mode,kdev_t_to_nr(de->rdev));
		else {
			if (de->proc_iops)
				inode->i_op = de->proc_iops;
			if (de->proc_fops)
				inode->i_fop = de->proc_fops;
		}
	}

out:
	return inode;

out_fail:
	de_put(de);
	goto out;
}			
示例#2
0
struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
				struct proc_dir_entry *de)
{
	struct inode * inode;

	/*
	 * Increment the use count so the dir entry can't disappear.
	 */
	de_get(de);

	WARN_ON(de && de->deleted);

	if (de != NULL && !try_module_get(de->owner))
		goto out_mod;

	inode = iget(sb, ino);
	if (!inode)
		goto out_ino;

	PROC_I(inode)->pde = de;
	if (de) {
		if (de->mode) {
			inode->i_mode = de->mode;
			inode->i_uid = de->uid;
			inode->i_gid = de->gid;
		}
		if (de->size)
			inode->i_size = de->size;
		if (de->nlink)
			inode->i_nlink = de->nlink;
		if (de->proc_iops)
			inode->i_op = de->proc_iops;
		if (de->proc_fops)
			inode->i_fop = de->proc_fops;
	}

	return inode;

out_ino:
	if (de != NULL)
		module_put(de->owner);
out_mod:
	de_put(de);
	return NULL;
}