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-rw-r--r--block/file-posix.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/file-posix.c b/block/file-posix.c
index 989dfc4586..66fdb07820 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2068,13 +2068,14 @@ static bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov)
 {
     int i;
     size_t alignment = bdrv_min_mem_align(bs);
+    size_t len = bs->bl.request_alignment;
     IO_CODE();
 
     for (i = 0; i < qiov->niov; i++) {
         if ((uintptr_t) qiov->iov[i].iov_base % alignment) {
             return false;
         }
-        if (qiov->iov[i].iov_len % alignment) {
+        if (qiov->iov[i].iov_len % len) {
             return false;
         }
     }