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-rw-r--r--fs/namespace.c2
-rw-r--r--fs/super.c6
2 files changed, 7 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 88058de59c7..32dcd24bbc9 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1984,7 +1984,7 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
if (flags & MS_RDONLY)
mnt_flags |= MNT_READONLY;
- flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
+ flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
MS_STRICTATIME);
diff --git a/fs/super.c b/fs/super.c
index 938119ab8dc..c7765bd38ee 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -305,8 +305,13 @@ retry:
if (s) {
up_write(&s->s_umount);
destroy_super(s);
+ s = NULL;
}
down_write(&old->s_umount);
+ if (unlikely(!(old->s_flags & MS_BORN))) {
+ deactivate_locked_super(old);
+ goto retry;
+ }
return old;
}
}
@@ -909,6 +914,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
goto out_free_secdata;
BUG_ON(!mnt->mnt_sb);
WARN_ON(!mnt->mnt_sb->s_bdi);
+ mnt->mnt_sb->s_flags |= MS_BORN;
error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
if (error)