On Wed, Jan 03, 2018 at 01:39:27PM -0600, Christopher Lameter wrote:
> +++ linux/fs/dcache.c
> @@ -1074,7 +1074,8 @@ static enum lru_status dentry_lru_isolat
> return LRU_REMOVED;
> }
>
> - if (dentry->d_flags & DCACHE_REFERENCED) {
> + if (dentry->d_flags & DCACHE_REFERENCED &&
> + kobjects_left_in_slab_page(dentry) > 1) {
> dentry->d_flags &= ~DCACHE_REFERENCED;
> spin_unlock(&dentry->d_lock);
>
Maybe also update this comment:
/*
* Referenced dentries are still in use. If they have active
* counts, just remove them from the LRU. Otherwise give them
- * another pass through the LRU.
+ * another pass through the LRU unless they are the only
+ * object on their slab page.
*/
