linux-kernel - Re: [GIT PULL] Ceph fixes for 5.1-rc7

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Message-ID: <20190428155216.GB23075@ZenIV.linux.org.uk>
Date:   Sun, 28 Apr 2019 16:52:16 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Ilya Dryomov <idryomov@...il.com>, ceph-devel@...r.kernel.org,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        linux-cifs <linux-cifs@...r.kernel.org>
Subject: Re: [GIT PULL] Ceph fixes for 5.1-rc7

On Sun, Apr 28, 2019 at 11:47:58AM -0400, Jeff Layton wrote:

> We could stick that in ceph_dentry_info (->d_fsdata). We have a flags
> field in there already.

Yes, but...  You have it freed in ->d_release(), AFAICS, and without
any delays.  So lockless accesses will be trouble.