ceph: fix kick_requests()
__do_request() may unregister the request. So we should update
iterator 'p' before calling __do_request()
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index fd8d7ca..bad07c0 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2067,11 +2067,12 @@
static void kick_requests(struct ceph_mds_client *mdsc, int mds)
{
struct ceph_mds_request *req;
- struct rb_node *p;
+ struct rb_node *p = rb_first(&mdsc->request_tree);
dout("kick_requests mds%d\n", mds);
- for (p = rb_first(&mdsc->request_tree); p; p = rb_next(p)) {
+ while (p) {
req = rb_entry(p, struct ceph_mds_request, r_node);
+ p = rb_next(p);
if (req->r_got_unsafe)
continue;
if (req->r_session &&