Re: [PATCH] xen/netback: avoid race in xenvif_rx_ring_slots_available()

On 02/02/2021 07:09, Juergen Gross wrote:

Since commit 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding") xenvif_rx_ring_slots_available() is no longer called only from the rx queue kernel thread, so it needs to access the rx queue with the associated queue held.

Reported-by: Igor Druzhinin igor.druzhinin@citrix.com Fixes: 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding") Cc: stable@vger.kernel.org Signed-off-by: Juergen Gross jgross@suse.com

Appreciate a quick fix! Is this the only place that sort of race could happen now?

Igor