From: Jens Axboe <axboe@kernel.dk>
To: David Vrabel <david.vrabel@citrix.com>,
xen-devel <xen-devel@lists.xenproject.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Jenny Herbert <jennifer.herbert@citrix.com>
Subject: Re: [PATCH 12/14] xen-blkback: safely unmap grants in case they are still in use
Date: Mon, 26 Jan 2015 10:34:15 -0700 [thread overview]
Message-ID: <54C67A97.2030604@kernel.dk> (raw)
In-Reply-To: <54C65708.8060304@citrix.com>
On 01/26/2015 08:02 AM, David Vrabel wrote:
> On 19/01/15 15:51, David Vrabel wrote:
>> From: Jenny Herbert <jennifer.herbert@citrix.com>
>>
>> Use gnttab_unmap_refs_async() to wait until the mapped pages are no
>> longer in use before unmapping them.
>>
>> This allows blkback to use network storage which may retain refs to
>> pages in queued skbs after the block I/O has completed.
>
> Hi Jens,
>
> This xen-blkback change depends on several Xen changes and it would be
> easiest if this went via the Xen tree. Are you ok with this?
Yeah, that's fine. You can add my acked-by.
--
Jens Axboe
next prev parent reply other threads:[~2015-01-26 17:34 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-19 15:51 [PATCHv3 00/14] xen: fix many long-standing grant mapping bugs David Vrabel
2015-01-19 15:51 ` [PATCH 01/14] mm: provide a find_special_page vma operation David Vrabel
2015-01-19 15:51 ` [PATCH 02/14] mm: add 'foreign' alias for the 'pinned' page flag David Vrabel
2015-01-19 15:51 ` [PATCH 03/14] xen/grant-table: pre-populate kernel unmap ops for xen_gnttab_unmap_refs() David Vrabel
2015-01-19 15:51 ` [PATCH 04/14] xen: remove scratch frames for ballooned pages and m2p override David Vrabel
2015-01-19 15:51 ` [PATCH 05/14] x86/xen: require ballooned pages for grant maps David Vrabel
2015-01-19 15:51 ` [PATCH 06/14] xen/grant-table: add helpers for allocating pages David Vrabel
2015-01-19 15:51 ` [PATCH 07/14] xen: mark grant mapped pages as foreign David Vrabel
2015-01-19 15:51 ` [PATCH 08/14] xen-netback: use foreign page information from the pages themselves David Vrabel
2015-01-19 15:51 ` [PATCH 09/14] xen/grant-table: add a mechanism to safely unmap pages that are in use David Vrabel
2015-01-19 15:51 ` [PATCH 10/14] xen/gntdev: convert priv->lock to a mutex David Vrabel
2015-01-19 17:49 ` Stefano Stabellini
2015-01-19 17:53 ` David Vrabel
2015-01-19 18:38 ` Stefano Stabellini
2015-01-19 18:43 ` David Vrabel
2015-01-19 15:51 ` [PATCH 11/14] xen/gntdev: safely unmap grants in case they are still in use David Vrabel
2015-01-19 15:51 ` [PATCH 12/14] xen-blkback: " David Vrabel
2015-01-23 12:02 ` David Vrabel
2015-01-23 14:41 ` Roger Pau Monné
2015-01-23 14:31 ` Roger Pau Monné
2015-01-23 14:54 ` David Vrabel
2015-01-23 15:47 ` Roger Pau Monné
2015-01-23 16:00 ` David Vrabel
2015-01-26 15:00 ` David Vrabel
2015-01-24 8:57 ` Roger Pau Monné
2015-01-26 15:02 ` David Vrabel
2015-01-26 17:34 ` Jens Axboe [this message]
2015-01-19 15:51 ` [PATCH 13/14] xen/gntdev: mark userspace PTEs as special on x86 PV guests David Vrabel
2015-01-19 15:51 ` [PATCH 14/14] xen/gntdev: provide find_special_page VMA operation David Vrabel
-- strict thread matches above, loose matches on Subject: below --
2015-01-12 15:43 [PATCHv2 00/14] xen: fix many long-standing grant mapping bugs David Vrabel
2015-01-12 15:43 ` [PATCH 12/14] xen-blkback: safely unmap grants in case they are still in use David Vrabel
2015-01-14 15:17 ` Boris Ostrovsky
2015-01-14 15:47 ` Boris Ostrovsky
2015-01-14 16:00 ` David Vrabel
2015-01-14 16:22 ` Boris Ostrovsky
2015-01-14 16:33 ` David Vrabel
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