block/nfs: fix calculation of allocated file size

st.st_blocks is always counted in 512 byte units. Do not
use st.st_blksize as multiplicator which may be larger.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 1440067607-14547-1-git-send-email-pl@kamp.de
Signed-off-by: Jeff Cody <jcody@redhat.com>
(cherry picked from commit 055c6f912c8d3cd9a901972ae432c47e5872f71a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

diff --git a/block/nfs.c b/block/nfs.c
index c026ff6883311f2a9b16a4326ad1da97c6c3d4f4..02eb4e4643f91fc52182854ea0dd4b6e6fbe6494 100644 (file)
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -475,7 +475,7 @@ static int64_t nfs_get_allocated_file_size(BlockDriverState *bs)
         aio_poll(client->aio_context, true);
     }
 
-    return (task.ret < 0 ? task.ret : st.st_blocks * st.st_blksize);
+    return (task.ret < 0 ? task.ret : st.st_blocks * 512);
 }
 
 static int nfs_file_truncate(BlockDriverState *bs, int64_t offset)