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xen-devel
[Xen-devel] [PATCH 0 of 1] Patch to alter BLKIF_OP_TRIM to BLKIF_OP_DISC
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To: |
xen-devel@xxxxxxxxxxxxxxxxxxx, Ian.Jackson@xxxxxxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx, Ian.Campbell@xxxxxxxxxx, lidongyang@xxxxxxxxxx, owen.smith@xxxxxxxxxx, paul.durrant@xxxxxxxxxx, pasik@xxxxxx, JBeulich@xxxxxxxxxx |
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Subject: |
[Xen-devel] [PATCH 0 of 1] Patch to alter BLKIF_OP_TRIM to BLKIF_OP_DISCARD (v1). |
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From: |
Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
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Date: |
Tue, 30 Aug 2011 23:40:44 -0400 |
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konrad.wilk@xxxxxxxxxx |
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Tue, 30 Aug 2011 20:47:42 -0700 |
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Hey guys,
Pasi mentioned on Li's (and Owen's) patches which provide TRIM/UNMAP support
to the Linux backend/frontend that:
"
Isn't the generic name for this functionality "discard" in Linux?
and "trim" being the ATA specific discard-implementation,
and "scsi unmap" the SAS/SCSI specific discard-implementation?
Just wondering..
"
and it sounds right to me. The problem is of course that the 'feature-trim'
is already in the interface - but I was wondering how much it is set
in stone? Could it be feasible to modify the backend/frontend in Citrix
product to use 'feature-discard' instead? And naturally also the Novell
drivers.
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