[Qemu-block] [PATCH v2 2/3] ahci-test: Create smaller test ISO images

[John Snow]

These can simply be the size of the number of sectors we're reading,
plus one for a buffer. We don't need them to be any larger.

Signed-off-by: John Snow <js...@redhat.com>
---
 tests/ahci-test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 70bcafa..a271cad 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1494,9 +1494,10 @@ static void ahci_test_cdrom(int nsectors, bool dma)
         .atapi_dma = dma,
         .post_cb = ahci_cb_cmp_buff,
     };
+    uint64_t iso_size = ATAPI_SECTOR_SIZE * (nsectors + 1);
 
     /* Prepare ISO and fill 'tx' buffer */
-    fd = prepare_iso(1024 * 1024, &tx, &iso);
+    fd = prepare_iso(iso_size, &tx, &iso);
     opts.opaque = tx;
 
     /* Standard startup wonkery, but use ide-cd and our special iso file */
-- 
2.7.4