Commit 93bae099 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: record node block allocation in dnode_of_data 



This patch introduces recording node block allocation in dnode_of_data.
This information helps to figure out whether any node block is allocated during
specific file operations.

Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 00623e6b

fs/f2fs/data.c

+1 −0
Original line number Diff line number Diff line
@@ -226,6 +226,7 @@ void set_data_blkaddr(struct dnode_of_data *dn) 
	addr_array = blkaddr_in_node(rn);

	addr_array[ofs_in_node] = cpu_to_le32(dn->data_blkaddr);

	set_page_dirty(node_page);

	dn->node_changed = true;

}



int reserve_new_block(struct dnode_of_data *dn)

fs/f2fs/f2fs.h

+1 −0
Original line number Diff line number Diff line
@@ -546,6 +546,7 @@ struct dnode_of_data { 
	nid_t nid;			/* node id of the direct node block */

	unsigned int ofs_in_node;	/* data offset in the node page */

	bool inode_page_locked;		/* inode page is locked or not */

	bool node_changed;		/* is node block changed */

	block_t	data_blkaddr;		/* block address of the node block */

};

fs/f2fs/node.c

+5 −0
Original line number Diff line number Diff line
@@ -542,6 +542,7 @@ int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) 


			set_nid(parent, offset[i - 1], nids[i], i == 1);

			alloc_nid_done(sbi, nids[i]);

			dn->node_changed = true;

			done = true;

		} else if (mode == LOOKUP_NODE_RA && i == level && level > 1) {

			npage[i] = get_node_page_ra(parent, offset[i - 1]);
@@ -678,6 +679,7 @@ static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, 
			if (ret < 0)

				goto out_err;

			set_nid(page, i, 0, false);

			dn->node_changed = true;

		}

	} else {

		child_nofs = nofs + ofs * (NIDS_PER_BLOCK + 1) + 1;
@@ -691,6 +693,7 @@ static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, 
			ret = truncate_nodes(&rdn, child_nofs, 0, depth - 1);

			if (ret == (NIDS_PER_BLOCK + 1)) {

				set_nid(page, i, 0, false);

				dn->node_changed = true;

				child_nofs += ret;

			} else if (ret < 0 && ret != -ENOENT) {

				goto out_err;
@@ -752,6 +755,7 @@ static int truncate_partial_nodes(struct dnode_of_data *dn, 
		if (err < 0)

			goto fail;

		set_nid(pages[idx], i, 0, false);

		dn->node_changed = true;

	}



	if (offset[idx + 1] == 0) {
@@ -1153,6 +1157,7 @@ void sync_inode_page(struct dnode_of_data *dn) 
	} else {

		update_inode_page(dn->inode);

	}

	dn->node_changed = true;

}



int sync_node_pages(struct f2fs_sb_info *sbi, nid_t ino,