From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Petr Tesarik <ptesarik@suse.cz>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>
Subject: Re: [PATCH v2 1/1] s390/dma: provide proper ARCH_ZONE_DMA_BITS value
Date: Wed, 24 Jul 2019 07:44:40 +0200 [thread overview]
Message-ID: <20190724054440.GA4412@osiris> (raw)
In-Reply-To: <20190723225155.3915-1-pasic@linux.ibm.com>
On Wed, Jul 24, 2019 at 12:51:55AM +0200, Halil Pasic wrote:
> On s390 ZONE_DMA is up to 2G, i.e. ARCH_ZONE_DMA_BITS should be 31 bits.
> The current value is 24 and makes __dma_direct_alloc_pages() take a
> wrong turn first (but __dma_direct_alloc_pages() recovers then).
>
> Let's correct ARCH_ZONE_DMA_BITS value and avoid wrong turns.
>
> Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
> Reported-by: Petr Tesarik <ptesarik@suse.cz>
> Fixes: c61e9637340e ("dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32")
> ---
> arch/s390/include/asm/page.h | 2 ++
> 1 file changed, 2 insertions(+)
Applied, thanks!
prev parent reply other threads:[~2019-07-24 5:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-23 22:51 [PATCH v2 1/1] s390/dma: provide proper ARCH_ZONE_DMA_BITS value Halil Pasic
2019-07-24 5:44 ` Heiko Carstens [this message]
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