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vmbus: keep pointer to ring buffer page

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Avoid going from struct page to virt address (and back) by just
keeping pointer to the allocated pages instead of virt address.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Hemminger 2018-09-14 09:10:16 -07:00 • committed by Greg Kroah-Hartman
parent 800b932969
commit 52a42c2a90
3 changed files with 13 additions and 14 deletions
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2
include/linux/hyperv.h
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@ -739,7 +739,7 @@ struct vmbus_channel {
u32 ringbuffer_gpadlhandle;
/* Allocated memory for ring buffer */
void *ringbuffer_pages;
struct page *ringbuffer_page;
u32 ringbuffer_pagecount;
struct hv_ring_buffer_info outbound; /* send to parent */
struct hv_ring_buffer_info inbound; /* receive from parent */