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try stop the user from using mount -u to set the async flag on

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a filesystem currently using soft updates.
Also needs a new copy of ffs_softdep.c to complete the fix.
This commit is contained in:
Julian Elischer 1998-05-18 06:38:18 +00:00
parent f43e9d2251
commit c11d29814e
1 changed files with 11 additions and 1 deletions
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12
sys/ufs/ffs/ffs_vfsops.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)ffs_vfsops.c 8.31 (Berkeley) 5/20/95
* $Id: ffs_vfsops.c,v 1.80 1998/04/20 03:57:41 julian Exp $
* $Id: ffs_vfsops.c,v 1.81 1998/05/06 05:29:40 msmith Exp $
*/
#include "opt_devfs.h" /* for SLICE */
@ -261,6 +261,16 @@ ffs_mount( mp, path, data, ndp, p)
fs->fs_ronly = 0;
}
/*
* Soft updates is incompatible with "async",
* so if we are doing softupdates stop the user
* from setting the async flag in an update.
* Softdep_mount() clears it in an initial mount
* or ro->rw remount.
*/
if (mp->mnt_flag & MNT_SOFTDEP) {
mp->mnt_flag &= ~MNT_ASYNC;
}
if (fs->fs_ronly == 0) {
fs->fs_clean = 0;
ffs_sbupdate(ump, MNT_WAIT);