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From:   Chris Mason <clm@fb.com>
To:     Dave Chinner <david@fromorbit.com>
CC:     Amir Goldstein <amir73il@gmail.com>,
        Hugh Dickins <hughd@google.com>,
        Chris Down <chris@chrisdown.name>,
        Linux MM <linux-mm@kvack.org>,
        "Andrew Morton" <akpm@linux-foundation.org>,
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        Jeff Layton <jlayton@kernel.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Tejun Heo <tj@kernel.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Kernel Team <Kernel-team@fb.com>
Subject: Re: [PATCH v5 2/2] tmpfs: Support 64-bit inums per-sb
Thread-Topic: [PATCH v5 2/2] tmpfs: Support 64-bit inums per-sb
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Date:   Tue, 7 Jan 2020 21:37:25 +0000
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On 7 Jan 2020, at 16:07, Dave Chinner wrote:

> IOWs, there are *lots* of 64bit inode numbers out there on XFS
> filesystems....

It's less likely in btrfs but +1 to all of Dave's comments.  I'm happy=20
to run a scan on machines in the fleet and see how many have 64 bit=20
inodes (either buttery or x-y), but it's going to be a lot.

-chris