On Sun, Nov 12, 2006 at 11:43:05PM +0100, Rafael J. Wysocki wrote:
> On Sunday, 12 November 2006 23:30, David Chinner wrote:
> > And how does freezing them at that point in time guarantee consistent
> > filesystem state?
>
> If the work queues are frozen, there won't be any fs-related activity _after_
> we create the suspend image.
fs-related activity before or after the suspend image is captured is
not a problem - it's fs-related activity _during_ the suspend that
is an issue here. If we have async I/O completing during the suspend
image capture, we've got problems....
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
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