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authorPaul Moore <pmoore@redhat.com>2014-06-17 17:30:23 -0400
committerPaul Moore <pmoore@redhat.com>2014-06-17 17:30:23 -0400
commit170b5910d9fbea79de1bb40df22eda5f98250c0c (patch)
treeca9560e878d2842d45c6f99077d0d8b8f8b0f9ba /drivers/hv/ring_buffer.c
parent47dd0b76ace953bd2c0479076db0d3e3b9594003 (diff)
parent1860e379875dfe7271c649058aeddffe5afd9d0d (diff)
Merge tag 'v3.15' into next
Linux 3.15
Diffstat (limited to 'drivers/hv/ring_buffer.c')
-rw-r--r--drivers/hv/ring_buffer.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 26c93cf9f6b..15db66b7414 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -26,6 +26,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/hyperv.h>
+#include <linux/uio.h>
#include "hyperv_vmbus.h"
@@ -387,23 +388,20 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info)
*
*/
int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
- struct scatterlist *sglist, u32 sgcount, bool *signal)
+ struct kvec *kv_list, u32 kv_count, bool *signal)
{
int i = 0;
u32 bytes_avail_towrite;
u32 bytes_avail_toread;
u32 totalbytes_towrite = 0;
- struct scatterlist *sg;
u32 next_write_location;
u32 old_write;
u64 prev_indices = 0;
unsigned long flags;
- for_each_sg(sglist, sg, sgcount, i)
- {
- totalbytes_towrite += sg->length;
- }
+ for (i = 0; i < kv_count; i++)
+ totalbytes_towrite += kv_list[i].iov_len;
totalbytes_towrite += sizeof(u64);
@@ -427,12 +425,11 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
old_write = next_write_location;
- for_each_sg(sglist, sg, sgcount, i)
- {
+ for (i = 0; i < kv_count; i++) {
next_write_location = hv_copyto_ringbuffer(outring_info,
next_write_location,
- sg_virt(sg),
- sg->length);
+ kv_list[i].iov_base,
+ kv_list[i].iov_len);
}
/* Set previous packet start */