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authorPedro Martelletto <pedro@cvs.openbsd.org>2005-09-29 22:31:31 +0000
committerPedro Martelletto <pedro@cvs.openbsd.org>2005-09-29 22:31:31 +0000
commit77ba0228677547ab5a13dce7ade677414f766b89 (patch)
tree77a9111d95da3f0dfc1428b0f58d944016c974d3 /sys/ufs/ffs
parent079c31dd38aea9cf7c0dfda4f8d2124729e5fa11 (diff)
Sync dirty data when going from read-write to read-only.
Verified against FreeBSD, closes PR 4526, okay deraadt@.
Diffstat (limited to 'sys/ufs/ffs')
-rw-r--r--sys/ufs/ffs/ffs_vfsops.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c
index 0c54b77c511..98566ea48be 100644
--- a/sys/ufs/ffs/ffs_vfsops.c
+++ b/sys/ufs/ffs/ffs_vfsops.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ffs_vfsops.c,v 1.70 2005/07/03 20:14:02 drahn Exp $ */
+/* $OpenBSD: ffs_vfsops.c,v 1.71 2005/09/29 22:31:30 pedro Exp $ */
/* $NetBSD: ffs_vfsops.c,v 1.19 1996/02/09 22:22:26 christos Exp $ */
/*
@@ -202,6 +202,13 @@ ffs_mount(mp, path, data, ndp, p)
ronly = fs->fs_ronly;
if (ronly == 0 && (mp->mnt_flag & MNT_RDONLY)) {
+ /*
+ * Flush any dirty data.
+ */
+ VFS_SYNC(mp, MNT_WAIT, p->p_ucred, p);
+ /*
+ * Get rid of files open for writing.
+ */
flags = WRITECLOSE;
if (mp->mnt_flag & MNT_FORCE)
flags |= FORCECLOSE;