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Message-Id: <1297447140-21777-1-git-send-email-kys@microsoft.com>
Date: Fri, 11 Feb 2011 09:59:00 -0800
From: "K. Y. Srinivasan" <kys@...rosoft.com>
To: gregkh@...e.de, linux-kernel@...r.kernel.org,
devel@...uxdriverproject.org, virtualization@...ts.osdl.org
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>,
Hank Janssen <hjanssen@...rosoft.com>
Subject: [PATCH 1/3]: Staging: hv: Use native page allocation/free functions
In preperation for getting rid of the osd.[ch] files;
change all page allocation/free functions to use native interfaces.
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Signed-off-by: Hank Janssen <hjanssen@...rosoft.com>
---
drivers/staging/hv/channel.c | 12 +++++++-----
drivers/staging/hv/connection.c | 13 ++++++++-----
drivers/staging/hv/hv.c | 15 ++++++++++-----
drivers/staging/hv/netvsc.c | 14 ++++++++------
4 files changed, 33 insertions(+), 21 deletions(-)
diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index ba9afda..6c292e6 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -180,8 +180,9 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
newchannel->channel_callback_context = context;
/* Allocate the ring buffer */
- out = osd_page_alloc((send_ringbuffer_size + recv_ringbuffer_size)
- >> PAGE_SHIFT);
+ out = (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
+ get_order(send_ringbuffer_size + recv_ringbuffer_size));
+
if (!out)
return -ENOMEM;
@@ -300,8 +301,8 @@ Cleanup:
errorout:
ringbuffer_cleanup(&newchannel->outbound);
ringbuffer_cleanup(&newchannel->inbound);
- osd_page_free(out, (send_ringbuffer_size + recv_ringbuffer_size)
- >> PAGE_SHIFT);
+ free_pages((unsigned long)out,
+ get_order(send_ringbuffer_size + recv_ringbuffer_size));
kfree(openInfo);
return err;
}
@@ -686,7 +687,8 @@ void vmbus_close(struct vmbus_channel *channel)
ringbuffer_cleanup(&channel->outbound);
ringbuffer_cleanup(&channel->inbound);
- osd_page_free(channel->ringbuffer_pages, channel->ringbuffer_pagecount);
+ free_pages((unsigned long)channel->ringbuffer_pages,
+ get_order(channel->ringbuffer_pagecount * PAGE_SIZE));
kfree(info);
diff --git a/drivers/staging/hv/connection.c b/drivers/staging/hv/connection.c
index b3ac66e..ed0976a 100644
--- a/drivers/staging/hv/connection.c
+++ b/drivers/staging/hv/connection.c
@@ -66,7 +66,8 @@ int vmbus_connect(void)
* Setup the vmbus event connection for channel interrupt
* abstraction stuff
*/
- vmbus_connection.int_page = osd_page_alloc(1);
+ vmbus_connection.int_page =
+ (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
if (vmbus_connection.int_page == NULL) {
ret = -1;
goto Cleanup;
@@ -81,7 +82,8 @@ int vmbus_connect(void)
* Setup the monitor notification facility. The 1st page for
* parent->child and the 2nd page for child->parent
*/
- vmbus_connection.monitor_pages = osd_page_alloc(2);
+ vmbus_connection.monitor_pages =
+ (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 1);
if (vmbus_connection.monitor_pages == NULL) {
ret = -1;
goto Cleanup;
@@ -162,12 +164,12 @@ Cleanup:
destroy_workqueue(vmbus_connection.work_queue);
if (vmbus_connection.int_page) {
- osd_page_free(vmbus_connection.int_page, 1);
+ free_pages((unsigned long)vmbus_connection.int_page, 0);
vmbus_connection.int_page = NULL;
}
if (vmbus_connection.monitor_pages) {
- osd_page_free(vmbus_connection.monitor_pages, 2);
+ free_pages((unsigned long)vmbus_connection.monitor_pages, 1);
vmbus_connection.monitor_pages = NULL;
}
@@ -203,7 +205,8 @@ int vmbus_disconnect(void)
if (ret != 0)
goto Cleanup;
- osd_page_free(vmbus_connection.int_page, 1);
+ free_pages((unsigned long)vmbus_connection.int_page, 0);
+ free_pages((unsigned long)vmbus_connection.monitor_pages, 1);
/* TODO: iterate thru the msg list and free up */
destroy_workqueue(vmbus_connection.work_queue);
diff --git a/drivers/staging/hv/hv.c b/drivers/staging/hv/hv.c
index 021acba..419b4d6 100644
--- a/drivers/staging/hv/hv.c
+++ b/drivers/staging/hv/hv.c
@@ -230,7 +230,12 @@ int hv_init(void)
* Allocate the hypercall page memory
* virtaddr = osd_page_alloc(1);
*/
- virtaddr = osd_virtual_alloc_exec(PAGE_SIZE);
+#ifdef __x86_64__
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
+#else
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL,
+ __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
+#endif
if (!virtaddr) {
DPRINT_ERR(VMBUS,
@@ -462,10 +467,10 @@ void hv_synic_init(void *irqarg)
Cleanup:
if (hv_context.synic_event_page[cpu])
- osd_page_free(hv_context.synic_event_page[cpu], 1);
+ free_page((unsigned long)hv_context.synic_event_page[cpu]);
if (hv_context.synic_message_page[cpu])
- osd_page_free(hv_context.synic_message_page[cpu], 1);
+ free_page((unsigned long)hv_context.synic_message_page[cpu]);
return;
}
@@ -502,6 +507,6 @@ void hv_synic_cleanup(void *arg)
wrmsrl(HV_X64_MSR_SIEFP, siefp.as_uint64);
- osd_page_free(hv_context.synic_message_page[cpu], 1);
- osd_page_free(hv_context.synic_event_page[cpu], 1);
+ free_page((unsigned long)hv_context.synic_message_page[cpu]);
+ free_page((unsigned long)hv_context.synic_event_page[cpu]);
}
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 4319363..a271aa7 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -223,7 +223,8 @@ static int netvsc_init_recv_buf(struct hv_device *device)
/* ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE - 1)) == 0); */
net_device->recv_buf =
- osd_page_alloc(net_device->recv_buf_size >> PAGE_SHIFT);
+ (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
+ get_order(net_device->recv_buf_size));
if (!net_device->recv_buf) {
DPRINT_ERR(NETVSC,
"unable to allocate receive buffer of size %d",
@@ -360,7 +361,8 @@ static int netvsc_init_send_buf(struct hv_device *device)
/* ASSERT((netDevice->SendBufferSize & (PAGE_SIZE - 1)) == 0); */
net_device->send_buf =
- osd_page_alloc(net_device->send_buf_size >> PAGE_SHIFT);
+ (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
+ get_order(net_device->send_buf_size));
if (!net_device->send_buf) {
DPRINT_ERR(NETVSC, "unable to allocate send buffer of size %d",
net_device->send_buf_size);
@@ -498,8 +500,8 @@ static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
DPRINT_INFO(NETVSC, "Freeing up receive buffer...");
/* Free up the receive buffer */
- osd_page_free(net_device->recv_buf,
- net_device->recv_buf_size >> PAGE_SHIFT);
+ free_pages((unsigned long)net_device->recv_buf,
+ get_order(net_device->recv_buf_size));
net_device->recv_buf = NULL;
}
@@ -574,8 +576,8 @@ static int netvsc_destroy_send_buf(struct netvsc_device *net_device)
DPRINT_INFO(NETVSC, "Freeing up send buffer...");
/* Free up the receive buffer */
- osd_page_free(net_device->send_buf,
- net_device->send_buf_size >> PAGE_SHIFT);
+ free_pages((unsigned long)net_device->send_buf,
+ get_order(net_device->send_buf_size));
net_device->send_buf = NULL;
}
--
1.5.5.6
--
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