linux-kernel - Re: [PATCH 1/2] fs: add SEEK_HOLE and SEEK

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Message-ID: <4DB1E9D4.3080107@oracle.com>
Date:	Fri, 22 Apr 2011 13:49:24 -0700
From:	Sunil Mushran <sunil.mushran@...cle.com>
To:	Jonathan Nieder <jrnieder@...il.com>
CC:	Josef Bacik <josef@...hat.com>, linux-kernel@...r.kernel.org,
	linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	hch@...radead.org
Subject: Re: [PATCH 1/2] fs: add SEEK_HOLE and SEEK_DATA flags

On 04/22/2011 01:10 PM, Jonathan Nieder wrote:
> Hi,
>
> Josef Bacik wrote:
>
>> This just gets us ready to support the SEEK_HOLE and SEEK_DATA flags.  Turns out
>> using fiemap in things like cp cause more problems than it solves, so lets try
>> and give userspace an interface that doesn't suck.  So we have
> That's easy to believe, but could you elaborate?  What problem does
> using fiemap cause?  I assume the answer is somewhere in somewhere in
> the thread
>
>   http://thread.gmane.org/gmane.comp.file-systems.xfs.general/37895/focus=24404
>
> but it would be nice to have a summary in the commit log for
> posterity.

http://article.gmane.org/gmane.comp.file-systems.ext4/24465
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