Re: Zeroing data blocks

From: Arjan van de Ven
Date: Sat Aug 05 2006 - 11:08:59 EST

On Sat, 2006-08-05 at 00:55 -0700, Avinash Ramanath wrote:
> Hi,
> As per your suggestion, if I write a file with zero bits, it would
> remap to other pages, and I might not zero the real pages. So is there
> any other way that I can access the pages that a file is using?

there is an ioctl to find the blocks the file is in.. but still that's
only a snapshot, not a guarantee. What you really need/want is to do
this at the filesystem level, you can't reliably do it above that level.

if you want to mail me at work (you don't), use arjan (at)

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