diff mbox

[v2,4/4] block: qed - use QEMU_PACKED for on-disk structures

Message ID 7f0187bc702fb2421747c0fa0710506e72d41f6e.1380124547.git.jcody@redhat.com
State New
Headers show

Commit Message

Jeff Cody Sept. 25, 2013, 4:08 p.m. UTC 
QEDHeader is read, and written, directly from on-disk images
via bdrv_pread()/write().  To avoid any unintentional padding,
these structs should be packed.

Signed-off-by: Jeff Cody <jcody@redhat.com>
---
 block/qed.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/block/qed.h b/block/qed.h
index 2b4dded..5d65bea 100644
--- a/block/qed.h
+++ b/block/qed.h
@@ -100,7 +100,7 @@  typedef struct {
     /* if (features & QED_F_BACKING_FILE) */
     uint32_t backing_filename_offset; /* in bytes from start of header */
     uint32_t backing_filename_size;   /* in bytes */
-} QEDHeader;
+} QEMU_PACKED QEDHeader;
 
 typedef struct {
     uint64_t offsets[0];            /* in bytes */