MFH

Sponsored by:	The FreeBSD Foundation

1 files changed, 4 insertions, 10 deletions

diff --git a/sys/dev/md/md.c b/sys/dev/md/md.c
index 2fa9f46..222bc40 100644
--- a/sys/dev/md/md.c
+++ b/sys/dev/md/md.c
@@ -130,18 +130,12 @@ SYSCTL_INT(_vm, OID_AUTO, md_malloc_wait, CTLFLAG_RW, &md_malloc_wait, 0,
  */
 #if defined(MD_ROOT_SIZE)
 /*
+ * We put the mfs_root symbol into the oldmfs section of the kernel object file.
  * Applications that patch the object with the image can determine
- * the size looking at the start and end markers (strings),
- * so we want them contiguous.
+ * the size looking at the oldmfs section size within the kernel.
  */
-static struct {
-	u_char start[MD_ROOT_SIZE*1024];
-	u_char end[128];
-} mfs_root = {
-	.start = "MFS Filesystem goes here",
-	.end = "MFS Filesystem had better STOP here",
-};
-const int mfs_root_size = sizeof(mfs_root.start);
+u_char mfs_root[MD_ROOT_SIZE*1024] __attribute__ ((section ("oldmfs")));
+const int mfs_root_size = sizeof(mfs_root);
 #else
 extern volatile u_char __weak_symbol mfs_root;
 extern volatile u_char __weak_symbol mfs_root_end;