linux-ext4 - Re: [PATCH] ext4: update c/mtime on truncate up

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Message-ID: <20150728190944.GN2851@thunk.org>
Date:	Tue, 28 Jul 2015 15:09:44 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Eryu Guan <guaneryu@...il.com>
Cc:	linux-ext4@...r.kernel.org, Zirong Lang <zorro.lang@...il.com>
Subject: Re: [PATCH] ext4: update c/mtime on truncate up

On Fri, Jul 24, 2015 at 02:56:38PM +0800, Eryu Guan wrote:
> Commit 3da40c7b0898 ("ext4: only call ext4_truncate when size <= isize")
> introduced a bug that c/mtime is not updated on truncate up.
> 
> Fix the issue by setting c/mtime explicitly in the truncate up case.
> 
> Note that ftruncate(2) is not affected, so you won't see this bug using
> truncate(1) and xfs_io(1).
> 
> Signed-off-by: Zirong Lang <zorro.lang@...il.com>
> Signed-off-by: Eryu Guan <guaneryu@...il.com>

Applied, thanks.

					- Ted
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