[PATCH 2/8] Staging: hv: vmbus: Invoke vmbus_on_msg_dpc() directly

K. Y. Srinivasan
2011-08-15T21:52:20Z

The message processing function needs to execute on the same CPU where
the interrupt was taken. tasklets cannot gurantee this; so, invoke the
function directly.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/staging/hv/vmbus_drv.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index bb25c5b..1d4e878 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -39,7 +39,6 @@

static struct acpi_device *hv_acpi_dev;

-static struct tasklet_struct msg_dpc;
static struct tasklet_struct event_dpc;

unsigned int vmbus_loglevel = (ALL_MODULES << 16 | INFO_LVL);
@@ -425,7 +424,7 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
/* Check if there are actual msgs to be process */
if (msg->header.message_type != HVMSG_NONE) {
handled = true;
- tasklet_schedule(&msg_dpc);
+ vmbus_on_msg_dpc(0);
}

page_addr = hv_context.synic_event_page[cpu];
@@ -465,7 +464,6 @@ static int vmbus_bus_init(int irq)
}

/* Initialize the bus context */
- tasklet_init(&msg_dpc, vmbus_on_msg_dpc, 0);
tasklet_init(&event_dpc, vmbus_on_event, 0);

/* Now, register the bus with LDM */
--
1.7.4.1