Merge into stable: xsk: inherit need_wakeup flag for shared sockets

Merge into stable: xsk: inherit need_wakeup flag for shared sockets

[Jalal Mostafa]

Hi,

The following patch should be backported to the stable kernel versions
starting from 5.10
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=60240bc26114

The patch fixes inheriting the need_wakeup flag for AF_XDP sockets.
Sockets with XDP_SHARED_UMEM cannot have good performance because they
do not get this flag from the first socket.

Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
Commit ID: 60240bc26114 ("xsk: Inherit need_wakeup flag for shared sockets")
Kernels: 5.10 - 5.15 - 5.19 - 6.0

Best Regards,
Jalal

P.S.: Sorry for receiving multiple copies of this email. TEXT/PLAIN
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Re: Merge into stable: xsk: inherit need_wakeup flag for shared sockets

[Greg KH]

On Thu, Oct 06, 2022 at 02:31:14PM +0200, Jalal Mostafa wrote:
> Hi,
> 
> The following patch should be backported to the stable kernel versions
> starting from 5.10
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=60240bc26114
> 
> The patch fixes inheriting the need_wakeup flag for AF_XDP sockets.
> Sockets with XDP_SHARED_UMEM cannot have good performance because they
> do not get this flag from the first socket.
> 
> Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
> Commit ID: 60240bc26114 ("xsk: Inherit need_wakeup flag for shared sockets")
> Kernels: 5.10 - 5.15 - 5.19 - 6.0

Now queued up, thanks.

greg k-h