Re: [Xen-devel] [PATCH 2/2] make blkback driver handle trim request

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Aug 09, 2011 at 03:11:35PM +0800, Li Dongyang wrote:
> now blkback driver can handle the trim request from guest, we will
> forward the request to phy if it's really a device has trim, or we'll
> punch a hole on the image file.
> 

Hmm.. the 1/2 patch has 'discard' in the subject, while this has 'trim'.. is 
that intentional? 
I guess 'discard' is the generic name, while protocol specific names are TRIM 
for ATA, and SCSI UNMAP for SAS ?

Also: Shouldn't this be against upstream Linux 3.x these days, aswell, now when 
both blkback and blkfront are upstream?

-- Pasi


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