linux-kernel - Re: Nanosecond fs timestamp support: sad

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Message-ID: <1311369102.14555.268.camel@calx>
Date:	Fri, 22 Jul 2011 16:11:42 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	NeilBrown <neilb@...e.de>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Nanosecond fs timestamp support: sad

On Fri, 2011-07-22 at 22:59 +0200, Andi Kleen wrote:
> > Indeed. Only usefully exists on ext4 and requires extra system calls.
> 
> Not sure what you mean?  It's in stat(2), just like the timestamps.

I don't see anything that looks like a version or generation number in
either the man pages, the asm-generic/stat.h, or glibc's asm/stat.h.
Pointer?

The only interface I'm aware of is the EXT?_IOC_GETVERSION interface.
Looks like that is supported by BTRFS.

-- 
Mathematics is the supreme nostalgia of our time.


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