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:
> 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) linux.intel.com
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