On Mon, Nov 11, 2013 at 12:20:43PM -0500, Mike Snitzer wrote:
> From: Joe Thornber <ejt@xxxxxxxxxx>
>
> Allow a cache to shrink if the blocks being removed from the cache are
> not dirty.
Please would you document the intended procedure here?
> + DMERR("unable to shrink cache due to dirty blocks");
This error is highly undesirable: part of a device has been removed
while it is still needed!
How does someone go about reducing the size of the cache avoiding this
error? (Analogy: to reduce size of a filesystem you run a filesystem
resize process before reducing the size of the block device.)
Alasdair
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