On Thu, Dec 05, 2013 at 05:50:19PM -0500, Tejun Heo wrote:
> On Thu, Dec 05, 2013 at 11:10:51AM +0800, Yuanhan Liu wrote:
> > Greetings,
> >
> > I got the below dmesg and the first bad commit is
> >
> > commit 4b93dc9b1c684d0587fe44d36bbfdf45bd3bea9d
> > Author: Tejun Heo <t...@kernel.org>
> > AuthorDate: Thu Nov 28 14:54:43 2013 -0500
> > Commit: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> > CommitDate: Fri Nov 29 18:16:08 2013 -0800
> >
> > sysfs, kernfs: prepare mount path for kernfs
>
> Oops, can you please try the following patch?
Sorry for being a bit late, but, it does work!
--yliu
>
> diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
> index e7e3aa8..8d07527 100644
> --- a/fs/sysfs/mount.c
> +++ b/fs/sysfs/mount.c
> @@ -45,8 +45,10 @@ static struct dentry *sysfs_mount(struct file_system_type
> *fs_type,
>
> static void sysfs_kill_sb(struct super_block *sb)
> {
> + void *ns = (void *)kernfs_super_ns(sb);
> +
> kernfs_kill_sb(sb);
> - kobj_ns_drop(KOBJ_NS_TYPE_NET, (void *)kernfs_super_ns(sb));
> + kobj_ns_drop(KOBJ_NS_TYPE_NET, ns);
> }
>
> static struct file_system_type sysfs_fs_type = {
--
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