[dpdk-dev] [PATCH v2] eal/linux: do not create user mem map repeatedly when it exists

[wangyunjian]

Hi David,

Can this patch be merged before RC1?

Thanks,
Yunjian

> -----Original Message-----
> From: Burakov, Anatoly [mailto:anatoly.burakov at intel.com]
> Sent: Thursday, September 17, 2020 7:35 PM
> To: wangyunjian <wangyunjian at huawei.com>; dev at dpdk.org;
> david.marchand at redhat.com
> Cc: Lilijun (Jerry) <jerry.lilijun at huawei.com>; xudingke
> <xudingke at huawei.com>; stable at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] eal/linux: do not create user mem map
> repeatedly when it exists
> 
> On 23-Jul-20 3:48 PM, wangyunjian wrote:
> > From: Yunjian Wang <wangyunjian at huawei.com>
> >
> > Currently, we will create new user mem map entry for the same memory
> > segment, but in fact it has already been added to the user mem maps.
> > It's not necessary to create it twice.
> >
> > To resolve the issue, add support to remove the same entry in the
> > function compact_user_maps().
> >
> > Fixes: 0cbce3a167f1 ("vfio: skip DMA map failure if already mapped")
> > Cc: stable at dpdk.org
> >
> > Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
> > ---
> 
> Acked-by: Anatoly Burakov <anatoly.burakov at intel.com>
> 
> --
> Thanks,
> Anatoly