| To: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH] xfstests 255: add a seek_data/seek_hole tester |
| From: | Sunil Mushran <sunil.mushran@xxxxxxxxxx> |
| Date: | Wed, 29 Jun 2011 10:40:01 -0700 |
| Cc: | P?draig Brady <P@xxxxxxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx |
| In-reply-to: | <20110629173648.GA22293@xxxxxxxxxxxxx> |
| References: | <1309275199-10801-1-git-send-email-josef@xxxxxxxxxx> <1309275199-10801-5-git-send-email-josef@xxxxxxxxxx> <20110629065306.GC1026@dastard> <20110629074021.GA26086@xxxxxxxxxxxxx> <4E0B019E.8080800@xxxxxxxxxxxxxx> <4E0B60DE.50908@xxxxxxxxxx> <20110629173648.GA22293@xxxxxxxxxxxxx> |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110516 Lightning/1.0b2 Thunderbird/3.1.10 |
On 06/29/2011 10:36 AM, Christoph Hellwig wrote: On Wed, Jun 29, 2011 at 10:29:02AM -0700, Sunil Mushran wrote:I'm not too sure about that. Atleast not enabled by default. Most users use cp to backup data. Not empty space. In this case, this empty extent may not even be de-dupable. Frankly I'd be happier of cp started to exploited fallocate() to create larger extents before copying data into them. Atleast for the large files.That's what delayed allocation is for. A feature fewer file systems support than fallocate(). ;) |
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