allow update of mounted file systems

[unix-history] / usr / src / sys / ufs / mfs / mfs_vfsops.c

diff --git a/usr/src/sys/ufs/mfs/mfs_vfsops.c b/usr/src/sys/ufs/mfs/mfs_vfsops.c
index f34354a..03cf6fb 100644 (file)
--- a/usr/src/sys/ufs/mfs/mfs_vfsops.c
+++ b/usr/src/sys/ufs/mfs/mfs_vfsops.c
@@ -14,7 +14,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)mfs_vfsops.c        7.2 (Berkeley) %G%
+ *     @(#)mfs_vfsops.c        7.3 (Berkeley) %G%

  */
 
 #include "param.h"
  */
 
 #include "param.h"


@@ -70,6 +70,13 @@ mfs_mount(mp, path, data, ndp)
        u_int size;
        int error;
 
        u_int size;
        int error;
 

+       if (mp->m_flag & M_UPDATE) {
+               ump = VFSTOUFS(mp);
+               fs = ump->um_fs;
+               if (fs->fs_ronly && (mp->m_flag & M_RDONLY) == 0)
+                       fs->fs_ronly = 0;
+               return (0);
+       }

        if (error = copyin(data, (caddr_t)&args, sizeof (struct mfs_args)))
                return (error);
        if ((error = bdevvp(NODEV, &devvp)) != 0)
        if (error = copyin(data, (caddr_t)&args, sizeof (struct mfs_args)))
                return (error);
        if ((error = bdevvp(NODEV, &devvp)) != 0)