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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Juergen Gross <jgross@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	xen-devel@lists.xenproject.org,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Julien.Grall@arm.com
Subject: Re: [Xen-devel] [PATCH v2] xen/swiotlb: don't initialize swiotlb twice on arm64
Date: Thu, 13 Jun 2019 17:00:57 -0400	[thread overview]
Message-ID: <20190613210057.GE11920@char.us.oracle.com> (raw)
In-Reply-To: <e03d1101-3909-3109-c96c-77ab1bb047b9@suse.com>

> > 
> > #2 patch says:
> > 
> > 	"> To be symmetric with setting the flag only after having made the region
> > 	> contiguous, and to avoid (perhaps just theoretical) races, wouldn't it be
> > 	> better to clear the flag before calling xen_destroy_contiguous_region()?
> > 	> Even better would be a TestAndClear...() operation.
> > 
> > 	I like that idea.
> > "
> > ?
> 
> I was hoping for a clarification regarding the Xen specific page flag
> names before posting V3.
> 
> As Christoph didn't react when I posted possible solutions I think I'll
> just modify patch 3 according to Jan's comment and post V3.

OK, will await that patchset. Thank you!

BTW, your patch #1 should be upstream now.
> 
> 
> Juergen

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  reply	other threads:[~2019-06-13 21:00 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-28 22:48 [PATCH v2] xen/swiotlb: don't initialize swiotlb twice on arm64 Stefano Stabellini
2019-05-28 22:48 ` [Xen-devel] " Stefano Stabellini
2019-05-28 23:50 ` Boris Ostrovsky
2019-05-28 23:50   ` [Xen-devel] " Boris Ostrovsky
2019-06-03 18:25   ` Stefano Stabellini
2019-06-03 18:25     ` [Xen-devel] " Stefano Stabellini
2019-06-03 23:16     ` Boris Ostrovsky
2019-06-03 23:16       ` [Xen-devel] " Boris Ostrovsky
2019-06-04 16:51       ` Stefano Stabellini
2019-06-04 19:41         ` Boris Ostrovsky
2019-06-05 14:13           ` Konrad Rzeszutek Wilk
2019-06-05 14:24             ` Juergen Gross
2019-06-13 14:23               ` Konrad Rzeszutek Wilk
2019-06-13 15:04                 ` Juergen Gross
2019-06-13 21:00                   ` Konrad Rzeszutek Wilk [this message]
2019-06-17  8:21                     ` Christoph Hellwig

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