linux-ext4 - Re: [PATCH 2/2] ext4: update donor file's ctime/mtime

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Message-id: <EE52B431-D993-47A3-B914-5FE2ACE953B8@sun.com>
Date:	Fri, 09 Oct 2009 11:20:55 -0600
From:	Andreas Dilger <adilger@....com>
To:	Kazuya Mio <k-mio@...jp.nec.com>
Cc:	linux-ext4@...r.kernel.org, Theodore Tso <tytso@....edu>
Subject: Re: [PATCH 2/2] ext4: update donor file's ctime/mtime


On 8-Oct-09, at 02:04, Kazuya Mio wrote:

> EXT4_IOC_MOVE_EXT changes donor file data, but doesn't update ctime/ 
> mtime.
> This patch fixes this problem.

I would argue that just migrating the file data shouldn't update the  
ctime/mtime.
Those are used to determine if the file has changed in some way,  
usually for the
purpose of backup.  Migrating the data does not change anything from  
the user-space
POV and shouldn't force a new backup of the file.
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