minios: permit blkfront to write from mapped memory

Missing call to virtual_to_mfn

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>

diff --git a/blkfront.c b/blkfront.c
index 9c0d0bfaf8dd9c3b02d4349447ef949fa6a201f4..7fff105635f1839f503654006b9cf6241642002f 100644 (file)
--- a/blkfront.c
+++ b/blkfront.c
@@ -275,7 +275,7 @@ void blkfront_aio(struct blkfront_aiocb *aiocbp, int write)
     for (j = 0; j < n; j++) {
        uintptr_t data = start + j * PAGE_SIZE;
        aiocbp->gref[j] = req->seg[j].gref =
-            gnttab_grant_access(0, virt_to_mfn(data), write);
+            gnttab_grant_access(0, virtual_to_mfn(data), write);
        req->seg[j].first_sect = 0;
        req->seg[j].last_sect = PAGE_SIZE / dev->sector_size - 1;
     }