vhost: better variable name in logging

We really store a page offset in write_address,
so rename it write_page to avoid confusion.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 4c256d1..38244f5 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -882,15 +882,15 @@ static int set_bit_to_user(int nr, void __user *addr)
 static int log_write(void __user *log_base,
                     u64 write_address, u64 write_length)
 {
+       u64 write_page = write_address / VHOST_PAGE_SIZE;
        int r;
        if (!write_length)
                return 0;
        write_length += write_address % VHOST_PAGE_SIZE;
-       write_address /= VHOST_PAGE_SIZE;
        for (;;) {
                u64 base = (u64)(unsigned long)log_base;
-               u64 log = base + write_address / 8;
-               int bit = write_address % 8;
+               u64 log = base + write_page / 8;
+               int bit = write_page % 8;
                if ((u64)(unsigned long)log != log)
                        return -EFAULT;
                r = set_bit_to_user(bit, (void __user *)(unsigned long)log);
@@ -899,7 +899,7 @@ static int log_write(void __user *log_base,
                if (write_length <= VHOST_PAGE_SIZE)
                        break;
                write_length -= VHOST_PAGE_SIZE;
-               write_address += 1;
+               write_page += 1;
        }
        return r;
 }