linux-kernel - Re: [PATCH v2 2/2] ceph: allow rename operation under different quota realms

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Message-ID: <CAAM7YAmpDKu_WuroNxZ2y+Po8_oT59Bi4_FOY1LD1ttOO0UDgQ@mail.gmail.com>
Date:   Wed, 8 Apr 2020 11:10:34 +0800
From:   "Yan, Zheng" <ukernel@...il.com>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     Luis Henriques <lhenriques@...e.com>, Sage Weil <sage@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>,
        Gregory Farnum <gfarnum@...hat.com>,
        Zheng Yan <zyan@...hat.com>, Frank Schilder <frans@....dk>,
        ceph-devel <ceph-devel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] ceph: allow rename operation under different quota realms

On Wed, Apr 8, 2020 at 7:00 AM Jeff Layton <jlayton@...nel.org> wrote:

>
> Somewhat idle curiosity, but what happens with hardlinked files where
> one dentry is in one quota domain and another is in a different one?
> Does it stay in the old quotarealm?
>
> In any case, this is likely fine as non-hardlinked files are the
> pessimal case anyway.

rstat only tracks primary dentry.  inode is in the quota realm where
its primary linkage is in.