From dbd2918ec65c35f36bb102c88eafe87be0552f6f Mon Sep 17 00:00:00 2001 From: Robin Holt Date: Tue, 15 Dec 2009 16:47:58 -0800 Subject: [PATCH] X86: uv: xpc_make_first_contact hang due to not accepting ACTIVE state Many times while the initial connection is being made, the contacted partition will send back both the ACTIVATING and the ACTIVE remote_act_state changes in very close succescion. The 1/4 second delay in the make first contact loop is large enough to nearly always miss the ACTIVATING state change. Since either state indicates the remote partition has acknowledged our state change, accept either. Signed-off-by: Robin Holt Cc: Jack Steiner Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-xp/xpc_uv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 19bd7b0ede9..241ea5f01aa 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -1024,7 +1024,8 @@ xpc_make_first_contact_uv(struct xpc_partition *part) xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg), XPC_ACTIVATE_MQ_MSG_SYNC_ACT_STATE_UV); - while (part->sn.uv.remote_act_state != XPC_P_AS_ACTIVATING) { + while (!((part->sn.uv.remote_act_state == XPC_P_AS_ACTIVATING) || + (part->sn.uv.remote_act_state == XPC_P_AS_ACTIVE))) { dev_dbg(xpc_part, "waiting to make first contact with " "partition %d\n", XPC_PARTID(part)); -- 2.39.3