};
struct cache_entry {
- struct cache_entry *next;
unsigned int ce_ctime;
unsigned int ce_mtime;
unsigned int ce_dev;
unsigned int ce_size;
unsigned int ce_flags;
unsigned char sha1[20];
+ struct cache_entry *next;
char name[FLEX_ARRAY]; /* more */
};
#define CE_HASHED (0x100000)
#define CE_UNHASHED (0x200000)
+/*
+ * Copy the sha1 and stat state of a cache entry from one to
+ * another. But we never change the name, or the hash state!
+ */
+#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
+static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
+{
+ unsigned int state = dst->ce_flags & CE_STATE_MASK;
+
+ /* Don't copy hash chain and name */
+ memcpy(dst, src, offsetof(struct cache_entry, next));
+
+ /* Restore the hash state */
+ dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
+}
+
/*
* We don't actually *remove* it, we can just mark it invalid so that
* we won't find it in lookups.
* a match.
*/
if (same(old, merge)) {
- memcpy(merge, old, offsetof(struct cache_entry, name));
+ copy_cache_entry(merge, old);
} else {
verify_uptodate(old, o);
invalidate_ce_path(old);