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Date: Sun, 05 Feb 2012 11:21:26 -0600 From: Eric Sandeen <sandeen@...hat.com> To: Ron Yorston <rmy@...ress.co.uk> CC: xfs@....sgi.com, linux-ext4@...r.kernel.org Subject: Re: sparsify - utility to punch out blocks of 0s in a file On 2/5/12 11:19 AM, Ron Yorston wrote: > OK, I tried it out for my use case of flinging VM filesystem images around > on ext4 and it seems to do the job. I don't have any 64-bit systems > here at home so I used my feeble 32-bit netbook. Since sizeof(off_t) != > sizeof(long long) the debug output was all wrong: > > punching at 8989607068975104 len -4635819229210214401 whoops, I'll fix that thanks. This is the problem when I start something as a hack and then expose it to the light of day. ;) -Eric > but the image file and the host filesystem both survived the ordeal. > > Ron -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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