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authorOlaf Hering <ohering@suse.de>2013-07-19 16:39:26 +0200
committerOlaf Hering <ohering@suse.de>2013-07-19 16:39:31 +0200
commit68828f371a7d131d1f7aebd3c2055f7b6b96d943 (patch)
tree5d670cf750eecf17bb6335aea3285739e3f058f1
parent49240cbe3545126653e9f701186f71a614c46f29 (diff)
Drivers: hv: balloon: Do not post pressure status if interruptedrpm-3.10.1-3.5.g0cd5432--openSUSE-13.1-Milestone4rpm-3.10.1-3.5.g0cd5432
-rw-r--r--drivers/hv/hv_balloon.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 61b7351df1d4..deb5c25305af 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -975,6 +975,14 @@ static void post_status(struct hv_dynmem_device *dm)
dm->num_pages_ballooned +
compute_balloon_floor();
+ /*
+ * If our transaction ID is no longer current, just don't
+ * send the status. This can happen if we were interrupted
+ * after we picked our transaction ID.
+ */
+ if (status.hdr.trans_id != atomic_read(&trans_id))
+ return;
+
vmbus_sendpacket(dm->dev->channel, &status,
sizeof(struct dm_status),
(unsigned long)NULL,