Pin an object in the cache tier
When an object is pinned in the cache tier, it stays in the cache tier, and won't be flushed out.
@param io the pool the object is in @param o the object id @returns 0 on success, negative error code on failure
See Implementation
Pin an object in the cache tier
When an object is pinned in the cache tier, it stays in the cache tier, and won't be flushed out.
@param io the pool the object is in @param o the object id @returns 0 on success, negative error code on failure