/*
* Reblock a record's data. Both the B-Tree element and record pointers
* to the data must be adjusted.
*/
static int
hammer_reblock_data(struct hammer_ioc_reblock *reblock,
hammer_cursor_t cursor, hammer_btree_elm_t elm)
{
hammer_buffer_t data_buffer = NULL;
hammer_off_t odata_offset;
hammer_off_t ndata_offset;
int error;
void *ndata;
error = hammer_btree_extract_data(cursor);
if (error)
return (error);
ndata = hammer_alloc_data(cursor->trans, elm->leaf.data_len,
elm->leaf.base.rec_type,
&ndata_offset, &data_buffer,
0, &error);
if (error)
goto done;
hammer_io_notmeta(data_buffer);
/*
* Move the data. Note that we must invalidate any cached
* data buffer in the cursor before calling blockmap_free.
* The blockmap_free may free up the entire big-block and
* will not be able to invalidate it if the cursor is holding
* a data buffer cached in that big-block.
*/
hammer_modify_buffer_noundo(cursor->trans, data_buffer);
bcopy(cursor->data, ndata, elm->leaf.data_len);
hammer_modify_buffer_done(data_buffer);
hammer_cursor_invalidate_cache(cursor);
hammer_blockmap_free(cursor->trans,
elm->leaf.data_offset, elm->leaf.data_len);
hammer_modify_node(cursor->trans, cursor->node,
&elm->leaf.data_offset, sizeof(hammer_off_t));
odata_offset = elm->leaf.data_offset;
elm->leaf.data_offset = ndata_offset;
hammer_modify_node_done(cursor->node);
if (hammer_debug_general & 0x4000) {
hdkprintf("%08x %016jx -> %016jx\n",
(elm ? elm->base.localization : -1),
(intmax_t)odata_offset,
(intmax_t)ndata_offset);
}
done:
if (data_buffer)
hammer_rel_buffer(data_buffer, 0);
return (error);
}
/*
* Reblock a record's data. Both the B-Tree element and record pointers
* to the data must be adjusted.
*/
static int
hammer_reblock_data(struct hammer_ioc_reblock *reblock,
hammer_cursor_t cursor, hammer_btree_elm_t elm)
{
struct hammer_buffer *data_buffer = NULL;
hammer_off_t ndata_offset;
int error;
void *ndata;
error = hammer_btree_extract(cursor, HAMMER_CURSOR_GET_DATA |
HAMMER_CURSOR_GET_LEAF);
if (error)
return (error);
ndata = hammer_alloc_data(cursor->trans, elm->leaf.data_len,
elm->leaf.base.rec_type,
&ndata_offset, &data_buffer,
0, &error);
if (error)
goto done;
hammer_io_notmeta(data_buffer);
/*
* Move the data. Note that we must invalidate any cached
* data buffer in the cursor before calling blockmap_free.
* The blockmap_free may free up the entire large-block and
* will not be able to invalidate it if the cursor is holding
* a data buffer cached in that large block.
*/
hammer_modify_buffer(cursor->trans, data_buffer, NULL, 0);
bcopy(cursor->data, ndata, elm->leaf.data_len);
hammer_modify_buffer_done(data_buffer);
hammer_cursor_invalidate_cache(cursor);
hammer_blockmap_free(cursor->trans,
elm->leaf.data_offset, elm->leaf.data_len);
hammer_modify_node(cursor->trans, cursor->node,
&elm->leaf.data_offset, sizeof(hammer_off_t));
elm->leaf.data_offset = ndata_offset;
hammer_modify_node_done(cursor->node);
done:
if (data_buffer)
hammer_rel_buffer(data_buffer, 0);
return (error);
}