| Message ID | 1392985499-5812-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index ed88b3c..e85bc35 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1852,13 +1852,16 @@ static void blkback_changed(struct xenbus_device *dev, case XenbusStateReconfiguring: case XenbusStateReconfigured: case XenbusStateUnknown: - case XenbusStateClosed: break; case XenbusStateConnected: blkfront_connect(info); break; + case XenbusStateClosed: + if (dev->state == XenbusStateClosed) + break; + /* Missed the backend's Closing state -- fallthrough */ case XenbusStateClosing: blkfront_closing(info); break;
This is a note to let you know that I have just added a patch titled xen-blkfront: handle backend CLOSED without CLOSING to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.11.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From 8e30a1e47a24a8c7a6fccdbaf8b7ff8192f558a2 Mon Sep 17 00:00:00 2001 From: David Vrabel <david.vrabel@citrix.com> Date: Tue, 4 Feb 2014 18:53:56 +0000 Subject: xen-blkfront: handle backend CLOSED without CLOSING commit 3661371701e714f0cea4120f6a365340858fb4e4 upstream. Backend drivers shouldn't transistion to CLOSED unless the frontend is CLOSED. If a backend does transition to CLOSED too soon then the frontend may not see the CLOSING state and will not properly shutdown. So, treat an unexpected backend CLOSED state the same as CLOSING. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/block/xen-blkfront.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 1.9.0