linux-kernel - Re: [PATCH 2/2] xen/grant: introduce func gnttab_unmap_refs_async_wait

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150328004459.GA14373@l.oracle.com>
Date:	Fri, 27 Mar 2015 20:44:59 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Roger Pau Monné <roger.pau@...rix.com>
Cc:	Bob Liu <bob.liu@...cle.com>, xen-devel@...ts.xenproject.org,
	boris.ostrovsky@...cle.com, jennifer.herbert@...rix.com,
	david.vrabel@...rix.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] xen/grant: introduce func
 gnttab_unmap_refs_async_wait_completion()

On Thu, Mar 26, 2015 at 04:32:45PM +0100, Roger Pau Monné wrote:
> El 26/03/15 a les 13.16, Bob Liu ha escrit:
> > There are several place using gnttab async unmap and wait for
> > completion, so move the common code to a function
> > gnttab_unmap_refs_async_wait_completion().
> > 
> > Signed-off-by: Bob Liu <bob.liu@...cle.com>
> 
> For the blkback parts:
> 
> Acked-by: Roger Pau Monné <roger.pau@...rix.com>
> 
> Although, as David already said, I think we should do better than BUG_ON
> on error.

Have an 'stuck deferred pages' list and an timer to occasionally
flush them out? Something similar to 569ca5b3f94cd0b3295ec5943aa457cf4a4f6a3a
"xen/gnttab: add deferred freeing logic" ?
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/