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authorK. Y. Srinivasan <kys@microsoft.com>2012-12-01 06:46:51 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-17 11:39:15 -0800
commit9acd6442c6839d404c1f47dc0f3ff3e0fb13e44c (patch)
tree101f284e3e24b1226df0f29707a715b1dda9d9b5 /drivers/hv
parenta119845f6e98c890831bb5639cdad5ca9b79965f (diff)
Drivers: hv: Get rid of the unused global signaling state
Now that we have implemented a per-connection signaling mechanism, get rid of the global signaling state. For hosts that don't support per-connection signaling handle, we have moved the global state to be a per-channel state. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv.c24
-rw-r--r--drivers/hv/hyperv_vmbus.h8
2 files changed, 0 insertions, 32 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 76304a622140..e989c6fd1f8f 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -34,8 +34,6 @@
struct hv_context hv_context = {
.synic_initialized = false,
.hypercall_page = NULL,
- .signal_event_param = NULL,
- .signal_event_buffer = NULL,
};
/*
@@ -170,24 +168,6 @@ int hv_init(void)
hv_context.hypercall_page = virtaddr;
- /* Setup the global signal event param for the signal event hypercall */
- hv_context.signal_event_buffer =
- kmalloc(sizeof(struct hv_input_signal_event_buffer),
- GFP_KERNEL);
- if (!hv_context.signal_event_buffer)
- goto cleanup;
-
- hv_context.signal_event_param =
- (struct hv_input_signal_event *)
- (ALIGN((unsigned long)
- hv_context.signal_event_buffer,
- HV_HYPERCALL_PARAM_ALIGN));
- hv_context.signal_event_param->connectionid.asu32 = 0;
- hv_context.signal_event_param->connectionid.u.id =
- VMBUS_EVENT_CONNECTION_ID;
- hv_context.signal_event_param->flag_number = 0;
- hv_context.signal_event_param->rsvdz = 0;
-
return 0;
cleanup:
@@ -215,10 +195,6 @@ void hv_cleanup(void)
/* Reset our OS id */
wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);
- kfree(hv_context.signal_event_buffer);
- hv_context.signal_event_buffer = NULL;
- hv_context.signal_event_param = NULL;
-
if (hv_context.hypercall_page) {
hypercall_msr.as_uint64 = 0;
wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 6bbc197cbdfa..9135a6fcf3bd 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -492,14 +492,6 @@ struct hv_context {
bool synic_initialized;
- /*
- * This is used as an input param to HvCallSignalEvent hypercall. The
- * input param is immutable in our usage and must be dynamic mem (vs
- * stack or global). */
- struct hv_input_signal_event_buffer *signal_event_buffer;
- /* 8-bytes aligned of the buffer above */
- struct hv_input_signal_event *signal_event_param;
-
void *synic_message_page[NR_CPUS];
void *synic_event_page[NR_CPUS];
/*

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