ewah_each_bit(si->replace_bitmap, replace_entry, istate);
ewah_each_bit(si->delete_bitmap, mark_entry_for_delete, istate);
if (si->nr_deletions)
- remove_marked_cache_entries(istate);
+ remove_marked_cache_entries(istate, 0);
for (i = si->nr_replacements; i < si->saved_cache_nr; i++) {
if (!ce_namelen(si->saved_cache[i]))
continue;
}
if (ce->index > si->base->cache_nr) {
- ce->index = 0;
- continue;
+ BUG("ce refers to a shared ce at %d, which is beyond the shared index size %d",
+ ce->index, si->base->cache_nr);
}
ce->ce_flags |= CE_MATCHED; /* or "shared" */
base = si->base->cache[ce->index - 1];
- if (ce == base)
+ if (ce == base) {
+ /* The entry is present in the shared index. */
+ if (ce->ce_flags & CE_UPDATE_IN_BASE) {
+ /*
+ * Already marked for inclusion in
+ * the split index, either because
+ * the corresponding file was
+ * modified and the cached stat data
+ * was refreshed, or because there
+ * is already a replacement entry in
+ * the split index.
+ * Nothing more to do here.
+ */
+ } else if (!ce_uptodate(ce) &&
+ is_racy_timestamp(istate, ce)) {
+ /*
+ * A racily clean cache entry stored
+ * only in the shared index: it must
+ * be added to the split index, so
+ * the subsequent do_write_index()
+ * can smudge its stat data.
+ */
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ } else {
+ /*
+ * The entry is only present in the
+ * shared index and it was not
+ * refreshed.
+ * Just leave it there.
+ */
+ }
continue;
+ }
if (ce->ce_namelen != base->ce_namelen ||
strcmp(ce->name, base->name)) {
ce->index = 0;
* the split index.
* Nothing to do.
*/
+ } else if (!ce_uptodate(ce) &&
+ is_racy_timestamp(istate, ce)) {
+ /*
+ * A copy of a racily clean cache entry from
+ * the shared index. It must be added to
+ * the split index, so the subsequent
+ * do_write_index() can smudge its stat data.
+ */
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
} else {
/*
* Thoroughly compare the cached data to see
void remove_split_index(struct index_state *istate)
{
if (istate->split_index) {
- /*
- * When removing the split index, we need to move
- * ownership of the mem_pool associated with the
- * base index to the main index. There may be cache entries
- * allocated from the base's memory pool that are shared with
- * the_index.cache[].
- */
- mem_pool_combine(istate->ce_mem_pool, istate->split_index->base->ce_mem_pool);
+ if (istate->split_index->base) {
+ /*
+ * When removing the split index, we need to move
+ * ownership of the mem_pool associated with the
+ * base index to the main index. There may be cache entries
+ * allocated from the base's memory pool that are shared with
+ * the_index.cache[].
+ */
+ mem_pool_combine(istate->ce_mem_pool,
+ istate->split_index->base->ce_mem_pool);
- /*
- * The split index no longer owns the mem_pool backing
- * its cache array. As we are discarding this index,
- * mark the index as having no cache entries, so it
- * will not attempt to clean up the cache entries or
- * validate them.
- */
- if (istate->split_index->base)
+ /*
+ * The split index no longer owns the mem_pool backing
+ * its cache array. As we are discarding this index,
+ * mark the index as having no cache entries, so it
+ * will not attempt to clean up the cache entries or
+ * validate them.
+ */
istate->split_index->base->cache_nr = 0;
+ }
/*
* We can discard the split index because its