[Sheepdog] [PATCH 12/18] collie: support safely shutdown

[MORITA Kazutaka]

Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
---
 collie/group.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/collie/group.c b/collie/group.c
index 01b51f8..7dbbe9e 100644
--- a/collie/group.c
+++ b/collie/group.c
@@ -804,6 +804,8 @@ static void vdi_op(struct vdi_op_message *msg)
 	case SD_OP_MAKE_FS:
 		ret = make_super_object(&msg->req);
 		break;
+	case SD_OP_SHUTDOWN:
+		break;
 	default:
 		ret = SD_RES_SYSTEM_ERROR;
 		eprintf("opcode %d is not implemented\n", hdr->opcode);
@@ -862,6 +864,8 @@ static void vdi_op_done(struct vdi_op_message *msg)
 			eprintf("%d\n", sys->nr_sobjs);
 		}
 
+	case SD_OP_SHUTDOWN:
+		sys->status = SD_STATUS_SHUTDOWN;
 		break;
 	default:
 		eprintf("unknown operation %d\n", hdr->opcode);
@@ -1106,6 +1110,9 @@ static void sd_confch(cpg_handle_t handle, const struct cpg_name *group_name,
 			member_list[i].reason);
 	}
 
+	if (sys->status & SD_STATUS_SHUTDOWN_MASK || sys->status & SD_STATUS_ERROR_MASK)
+		return;
+
 	w = zalloc(sizeof(*w));
 	if (!w)
 		return;
-- 
1.5.6.5