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-rw-r--r--fs/jffs2/debug.c132
-rw-r--r--fs/jffs2/erase.c7
2 files changed, 136 insertions, 3 deletions
diff --git a/fs/jffs2/debug.c b/fs/jffs2/debug.c
index 660793107e92..590bdd6e0147 100644
--- a/fs/jffs2/debug.c
+++ b/fs/jffs2/debug.c
@@ -153,6 +153,135 @@ __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
kfree(buf);
}
+void __jffs2_dbg_superblock_counts(struct jffs2_sb_info *c)
+{
+ struct jffs2_eraseblock *jeb;
+ uint32_t free = 0, dirty = 0, used = 0, wasted = 0,
+ erasing = 0, bad = 0, unchecked = 0;
+ int nr_counted = 0;
+ int dump = 0;
+
+ if (c->gcblock) {
+ nr_counted++;
+ free += c->gcblock->free_size;
+ dirty += c->gcblock->dirty_size;
+ used += c->gcblock->used_size;
+ wasted += c->gcblock->wasted_size;
+ unchecked += c->gcblock->unchecked_size;
+ }
+ if (c->nextblock) {
+ nr_counted++;
+ free += c->nextblock->free_size;
+ dirty += c->nextblock->dirty_size;
+ used += c->nextblock->used_size;
+ wasted += c->nextblock->wasted_size;
+ unchecked += c->nextblock->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->clean_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->very_dirty_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->dirty_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->erasable_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->erasable_pending_wbuf_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->erase_pending_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->free_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+ list_for_each_entry(jeb, &c->bad_used_list, list) {
+ nr_counted++;
+ free += jeb->free_size;
+ dirty += jeb->dirty_size;
+ used += jeb->used_size;
+ wasted += jeb->wasted_size;
+ unchecked += jeb->unchecked_size;
+ }
+
+ list_for_each_entry(jeb, &c->erasing_list, list) {
+ nr_counted++;
+ erasing += c->sector_size;
+ }
+ list_for_each_entry(jeb, &c->erase_complete_list, list) {
+ nr_counted++;
+ erasing += c->sector_size;
+ }
+ list_for_each_entry(jeb, &c->bad_list, list) {
+ nr_counted++;
+ bad += c->sector_size;
+ }
+
+#define check(sz) \
+ if (sz != c->sz##_size) { \
+ printk(KERN_WARNING #sz "_size mismatch counted 0x%x, c->" #sz "_size 0x%x\n", \
+ sz, c->sz##_size); \
+ dump = 1; \
+ }
+ check(free);
+ check(dirty);
+ check(used);
+ check(wasted);
+ check(unchecked);
+ check(bad);
+ check(erasing);
+#undef check
+
+ if (nr_counted != c->nr_blocks) {
+ printk(KERN_WARNING "%s counted only 0x%x blocks of 0x%x. Where are the others?\n",
+ __func__, nr_counted, c->nr_blocks);
+ dump = 1;
+ }
+
+ if (dump) {
+ __jffs2_dbg_dump_block_lists_nolock(c);
+ BUG();
+ }
+}
+
/*
* Check the space accounting and node_ref list correctness for the JFFS2 erasable block 'jeb'.
*/
@@ -229,6 +358,9 @@ __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
}
#endif
+ if (!(c->flags & (JFFS2_SB_FLAG_BUILDING|JFFS2_SB_FLAG_SCANNING)))
+ __jffs2_dbg_superblock_counts(c);
+
return;
error:
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index bdc6a7bec802..65d91943fc2d 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -460,12 +460,13 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
if (c->cleanmarker_size && !jffs2_cleanmarker_oob(c))
jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL);
- jffs2_dbg_acct_sanity_check_nolock(c,jeb);
- jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
-
list_add_tail(&jeb->list, &c->free_list);
c->nr_erasing_blocks--;
c->nr_free_blocks++;
+
+ jffs2_dbg_acct_sanity_check_nolock(c, jeb);
+ jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
+
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->erase_free_sem);
wake_up(&c->erase_wait);