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Date:   Sun, 2 Jun 2019 03:43:19 +0100
From:   Al Viro <viro@zeniv.linux.org.uk>
To:     "Yan, Zheng" <zyan@redhat.com>
Cc:     linux-kernel@vger.kernel.org, idryomov@redhat.com,
        jlayton@redhat.com
Subject: Re: [PATCH] ceph: use ceph_evict_inode to cleanup inode's resource
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References: <20190602022546.16195-1-zyan@redhat.com>
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On Sun, Jun 02, 2019 at 10:25:46AM +0800, Yan, Zheng wrote:
> remove_session_caps() relies on __wait_on_freeing_inode(), to wait for
> freezing inode to remove its caps. But VFS wakes freeing inode waiters
> before calling destroy_inode().

*blink*

Which tree is that against?

> -static void ceph_i_callback(struct rcu_head *head)
> -{
> -	struct inode *inode = container_of(head, struct inode, i_rcu);
> -	struct ceph_inode_info *ci = ceph_inode(inode);
> -
> -	kfree(ci->i_symlink);
> -	kmem_cache_free(ceph_inode_cachep, ci);
> -}

... is gone from mainline, and AFAICS not reintroduced in ceph tree.
What am I missing here?