Esempi in C++ (Cpp) per f2fs_acquire_orphan_inode

Esempio n. 1

File: inode.c Progetto: Lyude/linux

/* caller should call f2fs_lock_op() */
void f2fs_handle_failed_inode(struct inode *inode)
{
	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
	struct node_info ni;
	int err;

	/*
	 * clear nlink of inode in order to release resource of inode
	 * immediately.
	 */
	clear_nlink(inode);

	/*
	 * we must call this to avoid inode being remained as dirty, resulting
	 * in a panic when flushing dirty inodes in gdirty_list.
	 */
	f2fs_update_inode_page(inode);
	f2fs_inode_synced(inode);

	/* don't make bad inode, since it becomes a regular file. */
	unlock_new_inode(inode);

	/*
	 * Note: we should add inode to orphan list before f2fs_unlock_op()
	 * so we can prevent losing this orphan when encoutering checkpoint
	 * and following suddenly power-off.
	 */
	err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
	if (err) {
		set_sbi_flag(sbi, SBI_NEED_FSCK);
		f2fs_msg(sbi->sb, KERN_WARNING,
			"May loss orphan inode, run fsck to fix.");
		goto out;
	}

	if (ni.blk_addr != NULL_ADDR) {
		err = f2fs_acquire_orphan_inode(sbi);
		if (err) {
			set_sbi_flag(sbi, SBI_NEED_FSCK);
			f2fs_msg(sbi->sb, KERN_WARNING,
				"Too many orphan inodes, run fsck to fix.");
		} else {
			f2fs_add_orphan_inode(inode);
		}
		f2fs_alloc_nid_done(sbi, inode->i_ino);
	} else {
		set_inode_flag(inode, FI_FREE_NID);
	}

out:
	f2fs_unlock_op(sbi);

	/* iput will drop the inode object */
	iput(inode);
}

Esempio n. 2

File: recovery.c Progetto: avagin/linux

static int recover_dentry(struct inode *inode, struct page *ipage,
						struct list_head *dir_list)
{
	struct f2fs_inode *raw_inode = F2FS_INODE(ipage);
	nid_t pino = le32_to_cpu(raw_inode->i_pino);
	struct f2fs_dir_entry *de;
	struct fscrypt_name fname;
	struct page *page;
	struct inode *dir, *einode;
	struct fsync_inode_entry *entry;
	int err = 0;
	char *name;

	entry = get_fsync_inode(dir_list, pino);
	if (!entry) {
		entry = add_fsync_inode(F2FS_I_SB(inode), dir_list,
							pino, false);
		if (IS_ERR(entry)) {
			dir = ERR_CAST(entry);
			err = PTR_ERR(entry);
			goto out;
		}
	}

	dir = entry->inode;

	memset(&fname, 0, sizeof(struct fscrypt_name));
	fname.disk_name.len = le32_to_cpu(raw_inode->i_namelen);
	fname.disk_name.name = raw_inode->i_name;

	if (unlikely(fname.disk_name.len > F2FS_NAME_LEN)) {
		WARN_ON(1);
		err = -ENAMETOOLONG;
		goto out;
	}
retry:
	de = __f2fs_find_entry(dir, &fname, &page);
	if (de && inode->i_ino == le32_to_cpu(de->ino))
		goto out_put;

	if (de) {
		einode = f2fs_iget_retry(inode->i_sb, le32_to_cpu(de->ino));
		if (IS_ERR(einode)) {
			WARN_ON(1);
			err = PTR_ERR(einode);
			if (err == -ENOENT)
				err = -EEXIST;
			goto out_put;
		}

		err = dquot_initialize(einode);
		if (err) {
			iput(einode);
			goto out_put;
		}

		err = f2fs_acquire_orphan_inode(F2FS_I_SB(inode));
		if (err) {
			iput(einode);
			goto out_put;
		}
		f2fs_delete_entry(de, page, dir, einode);
		iput(einode);
		goto retry;
	} else if (IS_ERR(page)) {
		err = PTR_ERR(page);
	} else {
		err = f2fs_add_dentry(dir, &fname, inode,
					inode->i_ino, inode->i_mode);
	}
	if (err == -ENOMEM)
		goto retry;
	goto out;

out_put:
	f2fs_put_page(page, 0);
out:
	if (file_enc_name(inode))
		name = "<encrypted>";
	else
		name = raw_inode->i_name;
	f2fs_msg(inode->i_sb, KERN_NOTICE,
			"%s: ino = %x, name = %s, dir = %lx, err = %d",
			__func__, ino_of_node(ipage), name,
			IS_ERR(dir) ? 0 : dir->i_ino, err);
	return err;
}