linux-kernel - Re: [PATCH RESEND 1/2] xen/blkback: safely unmap purge persistent grants

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Message-ID: <5514246F.7020909@citrix.com>
Date:	Thu, 26 Mar 2015 16:23:27 +0100
From:	Roger Pau Monné <roger.pau@...rix.com>
To:	Bob Liu <bob.liu@...cle.com>, <xen-devel@...ts.xenproject.org>
CC:	<boris.ostrovsky@...cle.com>, <jennifer.herbert@...rix.com>,
	<david.vrabel@...rix.com>, <linux-kernel@...r.kernel.org>,
	<konrad.wilk@...cle.com>
Subject: Re: [PATCH RESEND 1/2] xen/blkback: safely unmap purge persistent
 grants

El 26/03/15 a les 13.16, Bob Liu ha escrit:
> Commit c43cf3ea8385 ("xen-blkback: safely unmap grants in case they are still
> in use") use gnttab_unmap_refs_async() to wait until the mapped pages are no
> longer in use before unmapping them, but that commit missed the persistent case.
> Purge persistent pages can't be unmapped either unless no longer in use.
> 
> Signed-off-by: Bob Liu <bob.liu@...cle.com>

AFAICT since this is basically the same patch as what I've sent:

Acked-by: Roger Pau Monné <roger.pau@...rix.com>

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