Hi Andrew, After merging the akpm tree, today's linux-next build (x86_64 allmodconfig) failed like this: net/ceph/osd_client.c: In function 'ceph_osdc_alloc_request': net/ceph/osd_client.c:216:2: error: implicit declaration of function 'rb_init_node' [-Werror=implicit-function-declaration] Caused by commit 753b960e52b7 ("rbtree: empty nodes have no color") from the akpm tree interacting with commit cd43045c2de6 ("libceph: initialize rb, list nodes in ceph_osd_request") from the ceph tree. I added the following merge fix patch for today: From: Stephen Rothwell Date: Tue, 31 Jul 2012 14:37:35 +1000 Subject: [PATCH] libceph: remove rb_node initialisation Signed-off-by: Stephen Rothwell --- net/ceph/osd_client.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index ad427e6..06fb7a9 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -213,7 +213,6 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, kref_init(&req->r_kref); init_completion(&req->r_completion); init_completion(&req->r_safe_completion); - rb_init_node(&req->r_node); INIT_LIST_HEAD(&req->r_unsafe_item); INIT_LIST_HEAD(&req->r_linger_item); INIT_LIST_HEAD(&req->r_linger_osd); -- 1.7.10.280.gaa39 -- Cheers, Stephen Rothwell sfr@canb.auug.org.au