From: "Yan, Zheng" <[email protected]> This patch has been added to the 3.12 stable tree. If you have any objections, please let us know.
=============== commit 282c105225ec3229f344c5fced795b9e1e634440 upstream. __do_request() may unregister the request. So we should update iterator 'p' before calling __do_request() Signed-off-by: "Yan, Zheng" <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- fs/ceph/mds_client.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 16c7e4ab94f0..5ef4c6ca5cb5 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1975,11 +1975,12 @@ static void __wake_requests(struct ceph_mds_client *mdsc, 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 && -- 2.6.3 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
