linux-kernel - RE: [PATCH 2/2] pci-hyperv: Fix an atomic bug

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Message-ID: <BN3PR03MB222767E990C6D37430F965D4CE330@BN3PR03MB2227.namprd03.prod.outlook.com>
Date:   Mon, 27 Mar 2017 18:14:01 +0000
From:   Long Li <longli@...rosoft.com>
To:     KY Srinivasan <kys@...rosoft.com>,
        "helgaas@...nel.org" <helgaas@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        "olaf@...fle.de" <olaf@...fle.de>,
        "apw@...onical.com" <apw@...onical.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>,
        "leann.ogasawara@...onical.com" <leann.ogasawara@...onical.com>,
        "marcelo.cerri@...onical.com" <marcelo.cerri@...onical.com>,
        "Stephen Hemminger" <sthemmin@...rosoft.com>
CC:     "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: RE: [PATCH 2/2] pci-hyperv: Fix an atomic bug

> -----Original Message-----
> From: devel [mailto:driverdev-devel-bounces@...uxdriverproject.org] On
> Behalf Of kys@...hange.microsoft.com
> Sent: Friday, March 24, 2017 11:07 AM
> To: helgaas@...nel.org; linux-pci@...r.kernel.org; linux-
> kernel@...r.kernel.org; devel@...uxdriverproject.org; olaf@...fle.de;
> apw@...onical.com; vkuznets@...hat.com; jasowang@...hat.com;
> leann.ogasawara@...onical.com; marcelo.cerri@...onical.com; Stephen
> Hemminger <sthemmin@...rosoft.com>
> Cc: stable@...r.kernel.org
> Subject: [PATCH 2/2] pci-hyperv: Fix an atomic bug
> 
> From: K. Y. Srinivasan <kys@...rosoft.com>
> 
> The memory allocation here needs to be non-blocking.
> Fix the issue.
> 
> Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
> Cc: <stable@...r.kernel.org>

Reviewed-by: Long Li <longli@...rosoft.com>

> ---
>  drivers/pci/host/pci-hyperv.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
> index 32a16fb..85088a1 100644
> --- a/drivers/pci/host/pci-hyperv.c
> +++ b/drivers/pci/host/pci-hyperv.c
> @@ -877,7 +877,7 @@ static void hv_compose_msi_msg(struct irq_data
> *data, struct msi_msg *msg)
>                 hv_int_desc_free(hpdev, int_desc);
>         }
> 
> -       int_desc = kzalloc(sizeof(*int_desc), GFP_KERNEL);
> +       int_desc = kzalloc(sizeof(*int_desc), GFP_ATOMIC);
>         if (!int_desc)
>                 goto drop_reference;
> 
> --
> 1.7.1
> 
> _______________________________________________
> devel mailing list
> devel@...uxdriverproject.org
> http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

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