]> www.infradead.org Git - users/jedix/linux-maple.git/commit
xen/events/fifo: Consume unprocessed events when a CPU dies
authorRoss Lagerwall <ross.lagerwall@citrix.com>
Fri, 19 Jun 2015 15:15:57 +0000 (16:15 +0100)
committerJoao Martins <joao.m.martins@oracle.com>
Sun, 27 Mar 2016 01:01:29 +0000 (02:01 +0100)
commit0d2ec787af29804b94f674147762fe8134354b95
tree36b2f655e890d465cc87fe4b515d7ec9d3f623b3
parent9b3c1551fe5fc139da3f67ebb7d7b65592af1598
xen/events/fifo: Consume unprocessed events when a CPU dies

When a CPU is offlined, there may be unprocessed events on a port for
that CPU.  If the port is subsequently reused on a different CPU, it
could be in an unexpected state with the link bit set, resulting in
interrupts being missed. Fix this by consuming any unprocessed events
for a particular CPU when that CPU dies.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Cc: <stable@vger.kernel.org> # 3.14+
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
(cherry picked from commit 3de88d622fd68bd4dbee0f80168218b23f798fd0)
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
drivers/xen/events/events_fifo.c