aboutsummaryrefslogtreecommitdiff
path: root/arch/ia64/sn/kernel
diff options
context:
space:
mode:
authorDean Nelson <dcn@sgi.com>2005-12-22 14:32:56 -0600
committerTony Luck <tony.luck@intel.com>2006-01-13 10:16:36 -0800
commit246c7e33d51afe99890b2caab7ad482c0296d5ba (patch)
tree20d96a5182dd5971d9d51d6626cf02d4a1c19c85 /arch/ia64/sn/kernel
parent7ae69d2aa4ed3ee8cef18a072346366f019d6a4a (diff)
[IA64-SGI] ensure XPC disengage request is processed
This patch fixes a problem in XPC disengage processing whereby it was not seeing the request to disengage from a remote partition, so the disengage wasn't happening. The disengagement is suppose to transpire during the time a XPC channel is disconnecting, and should be completed before the channel is declared to be disconnected. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn/kernel')
-rw-r--r--arch/ia64/sn/kernel/xpc.h2
-rw-r--r--arch/ia64/sn/kernel/xpc_channel.c20
-rw-r--r--arch/ia64/sn/kernel/xpc_main.c2
-rw-r--r--arch/ia64/sn/kernel/xpc_partition.c3
4 files changed, 16 insertions, 11 deletions
diff --git a/arch/ia64/sn/kernel/xpc.h b/arch/ia64/sn/kernel/xpc.h
index 5483a9f227d..66b17b6aa81 100644
--- a/arch/ia64/sn/kernel/xpc.h
+++ b/arch/ia64/sn/kernel/xpc.h
@@ -707,7 +707,7 @@ extern void xpc_connected_callout(struct xpc_channel *);
extern void xpc_deliver_msg(struct xpc_channel *);
extern void xpc_disconnect_channel(const int, struct xpc_channel *,
enum xpc_retval, unsigned long *);
-extern void xpc_disconnecting_callout(struct xpc_channel *);
+extern void xpc_disconnect_callout(struct xpc_channel *, enum xpc_retval);
extern void xpc_partition_going_down(struct xpc_partition *, enum xpc_retval);
extern void xpc_teardown_infrastructure(struct xpc_partition *);
diff --git a/arch/ia64/sn/kernel/xpc_channel.c b/arch/ia64/sn/kernel/xpc_channel.c
index abf4fc2a87b..272ab4deb57 100644
--- a/arch/ia64/sn/kernel/xpc_channel.c
+++ b/arch/ia64/sn/kernel/xpc_channel.c
@@ -779,6 +779,12 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
/* both sides are disconnected now */
+ if (ch->flags & XPC_C_CONNECTCALLOUT) {
+ spin_unlock_irqrestore(&ch->lock, *irq_flags);
+ xpc_disconnect_callout(ch, xpcDisconnected);
+ spin_lock_irqsave(&ch->lock, *irq_flags);
+ }
+
/* it's now safe to free the channel's message queues */
xpc_free_msgqueues(ch);
@@ -1645,7 +1651,7 @@ xpc_disconnect_channel(const int line, struct xpc_channel *ch,
void
-xpc_disconnecting_callout(struct xpc_channel *ch)
+xpc_disconnect_callout(struct xpc_channel *ch, enum xpc_retval reason)
{
/*
* Let the channel's registerer know that the channel is being
@@ -1654,15 +1660,13 @@ xpc_disconnecting_callout(struct xpc_channel *ch)
*/
if (ch->func != NULL) {
- dev_dbg(xpc_chan, "ch->func() called, reason=xpcDisconnecting,"
- " partid=%d, channel=%d\n", ch->partid, ch->number);
+ dev_dbg(xpc_chan, "ch->func() called, reason=%d, partid=%d, "
+ "channel=%d\n", reason, ch->partid, ch->number);
- ch->func(xpcDisconnecting, ch->partid, ch->number, NULL,
- ch->key);
+ ch->func(reason, ch->partid, ch->number, NULL, ch->key);
- dev_dbg(xpc_chan, "ch->func() returned, reason="
- "xpcDisconnecting, partid=%d, channel=%d\n",
- ch->partid, ch->number);
+ dev_dbg(xpc_chan, "ch->func() returned, reason=%d, partid=%d, "
+ "channel=%d\n", reason, ch->partid, ch->number);
}
}
diff --git a/arch/ia64/sn/kernel/xpc_main.c b/arch/ia64/sn/kernel/xpc_main.c
index b617236524c..6708ef6e061 100644
--- a/arch/ia64/sn/kernel/xpc_main.c
+++ b/arch/ia64/sn/kernel/xpc_main.c
@@ -773,7 +773,7 @@ xpc_daemonize_kthread(void *args)
ch->flags |= XPC_C_DISCONNECTCALLOUT;
spin_unlock_irqrestore(&ch->lock, irq_flags);
- xpc_disconnecting_callout(ch);
+ xpc_disconnect_callout(ch, xpcDisconnecting);
} else {
spin_unlock_irqrestore(&ch->lock, irq_flags);
}
diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/arch/ia64/sn/kernel/xpc_partition.c
index cdd6431853a..cf02a9bcd24 100644
--- a/arch/ia64/sn/kernel/xpc_partition.c
+++ b/arch/ia64/sn/kernel/xpc_partition.c
@@ -771,7 +771,8 @@ xpc_identify_act_IRQ_req(int nasid)
}
}
- if (!xpc_partition_disengaged(part)) {
+ if (part->disengage_request_timeout > 0 &&
+ !xpc_partition_disengaged(part)) {
/* still waiting on other side to disengage from us */
return;
}