Re: [ANNOUNCE] Native Linux KVM tool v2

From: Christoph Hellwig
Date: Thu Jun 16 2011 - 07:26:13 EST


On Thu, Jun 16, 2011 at 01:22:30PM +0200, Ingo Molnar wrote:
> Such as? I don't think apps can actually know whether disk blocks
> have been 'instantiated' by a particular filesystem or not, so the
> manpage:

In general they can't. The only good use case for sync_file_range
is to paper over^H^H^H^H^H^H^H^H^Hcontrol write back behaviour.

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