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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: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2015-12-22 12:59:54 -08:00
parent 00623e6bcf
commit 93bae099ea
3 changed files with 7 additions and 0 deletions
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1
fs/f2fs/data.c
View File

@ -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)

1
fs/f2fs/f2fs.h
View File

@ -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 */
};

5
fs/f2fs/node.c
View File

@ -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,