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-rw-r--r--drivers/xen/pvcalls-back.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index 7bdf9245cfab..97d6fb159e8a 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -96,8 +96,34 @@ static int pvcalls_back_release_active(struct xenbus_device *dev,
struct pvcalls_fedata *fedata,
struct sock_mapping *map);
+static void pvcalls_conn_back_read(void *opaque)
+{
+}
+
+static void pvcalls_conn_back_write(struct sock_mapping *map)
+{
+}
+
static void pvcalls_back_ioworker(struct work_struct *work)
{
+ struct pvcalls_ioworker *ioworker = container_of(work,
+ struct pvcalls_ioworker, register_work);
+ struct sock_mapping *map = container_of(ioworker, struct sock_mapping,
+ ioworker);
+
+ while (atomic_read(&map->io) > 0) {
+ if (atomic_read(&map->release) > 0) {
+ atomic_set(&map->release, 0);
+ return;
+ }
+
+ if (atomic_read(&map->read) > 0)
+ pvcalls_conn_back_read(map);
+ if (atomic_read(&map->write) > 0)
+ pvcalls_conn_back_write(map);
+
+ atomic_dec(&map->io);
+ }
}
static int pvcalls_back_socket(struct xenbus_device *dev,