Messages in this thread Patch in this message | | | From | Bob Liu <> | Subject | [PATCH 1/2] xen-blkfront: don't call talk_to_blkback when already connected to blkback | Date | Tue, 31 May 2016 16:59:16 +0800 |
| |
Sometimes blkfont may receive twice blkback_changed() notification after migration, then talk_to_blkback() will be called twice too and confused xen-blkback.
Signed-off-by: Bob Liu <bob.liu@oracle.com> --- drivers/block/xen-blkfront.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index ca13df8..01aa460 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2485,7 +2485,8 @@ static void blkback_changed(struct xenbus_device *dev, break; case XenbusStateConnected: - if (dev->state != XenbusStateInitialised) { + if ((dev->state != XenbusStateInitialised) && + (dev->state != XenbusStateConnected)) { if (talk_to_blkback(dev, info)) break; } -- 2.7.4
| |