diff options
Diffstat (limited to 'drivers/hv/ring_buffer.c')
| -rw-r--r-- | drivers/hv/ring_buffer.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c index 26c93cf9f6be..15db66b74141 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 */ |