On Mon, Sep 23, 2019 at 5:34 PM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> FWIW, #next.dcache has the straight conversion to hlist.
Note that this:
@@ -108,8 +108,8 @@ struct dentry {
struct list_head d_lru; /* LRU list */
wait_queue_head_t *d_wait; /* in-lookup ones only */
};
- struct list_head d_child; /* child of parent list */
- struct list_head d_subdirs; /* our children */
+ struct hlist_node d_sibling; /* child of parent list */
+ struct hlist_head d_children; /* our children */
Changes the 'standard' struct dentry size from 192 to 184.
Does that matter for cache line alignment?
Should struct dentry be ____cacheline_aligned?
Thanks,
Amir.
