#include "yaffs_getblockinfo.h"
#include "yaffs_verify.h"
#include "yaffs_attribs.h"
+#include "yaffs_summary.h"
/*
* Checkpoints are really no benefit on very small partitions.
int blk, int chunk_in_block,
int *found_chunks,
u8 *chunk_data,
- struct list_head *hard_list)
+ struct list_head *hard_list,
+ int summary_available)
{
struct yaffs_obj_hdr *oh;
struct yaffs_obj *in;
struct yaffs_hardlink_var *hl_var;
struct yaffs_symlink_var *sl_var;
- result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags);
+ if (summary_available) {
+ result = yaffs_summary_fetch(dev, &tags, chunk_in_block);
+ tags.seq_number = bi->seq_number;
+ }
+
+ if (!summary_available || tags.obj_id == 0) {
+ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags);
+ dev->tags_used++;
+ } else {
+ dev->summary_used++;
+ }
/* Let's have a good look at this chunk... */
dev->n_free_chunks++;
} else if (tags.obj_id > YAFFS_MAX_OBJECT_ID ||
tags.chunk_id > YAFFS_MAX_CHUNK_ID ||
+ tags.obj_id == YAFFS_OBJECTID_SUMMARY ||
(tags.chunk_id > 0 &&
tags.n_bytes > dev->data_bytes_per_chunk) ||
tags.seq_number != bi->seq_number) {
int alloc_failed = 0;
struct yaffs_block_index *block_index = NULL;
int alt_block_index = 0;
+ int summary_available;
yaffs_trace(YAFFS_TRACE_SCAN,
"yaffs2_scan_backwards starts intstartblk %d intendblk %d...",
bi = yaffs_get_block_info(dev, blk);
deleted = 0;
+ summary_available = yaffs_summary_read(dev, dev->sum_tags, blk);
+
/* For each chunk in each block that needs scanning.... */
found_chunks = 0;
- for (c = dev->param.chunks_per_block - 1;
+ if(summary_available)
+ c = dev->chunks_per_summary - 1;
+ else
+ c = dev->param.chunks_per_block - 1;
+
+ for (/* c is already initialised */;
!alloc_failed && c >= 0 &&
(bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN ||
- bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
+ bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING);
+ c--) {
/* Scan backwards...
* Read the tags and decide what to do
*/
if (yaffs2_scan_chunk(dev, bi, blk, c,
&found_chunks, chunk_data,
- &hard_list) == YAFFS_FAIL)
+ &hard_list, summary_available) ==
+ YAFFS_FAIL)
alloc_failed = 1;
}