linux-kernel - Re: [RFC 11/32] xfs: convert to struct inode

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Message-ID: <CAMuHMdX=5WEpySgtd5xvt=4ZVNesonJc7k3=GJmuVS9KEiwrMA@mail.gmail.com>
Date:	Mon, 2 Jun 2014 09:09:23 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Dave Chinner <david@...morbit.com>
Cc:	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	"Joseph S. Myers" <joseph@...esourcery.com>,
	John Stultz <john.stultz@...aro.org>,
	Christoph Hellwig <hch@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ley Foon Tan <lftan@...era.com>,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	xfs@....sgi.com
Subject: Re: [RFC 11/32] xfs: convert to struct inode_time

On Mon, Jun 2, 2014 at 4:22 AM, Dave Chinner <david@...morbit.com> wrote:
> Filesystems place all sorts of userspace visible limits on storage -
> ever tried to create a file >16TB on ext4? The on-disk format
> doesn't support it, so it returns an out of range error (E2BIG, I
> think) if you try. XFS, OTOH, handles this just fine and so it
> continues to work. It's exactly the same with timestamps - there's a
> physical limit to what can sanely be stored in any given filesystem
> and it's an *error condition* to go beyond that limit....

This comparison doesn't fly.
File sizes do not depend on the current time (except for the increase of
megapixels in your new camera ;-).
Writing a 15 GiB file to ext4 is not something that magically stops working
tomorrow.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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