Messages in this thread |  | | Date | Mon, 9 Dec 2013 22:56:51 +0800 | From | Yuanhan Liu <> | Subject | Re: BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:20 |
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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 <tj@kernel.org> > > AuthorDate: Thu Nov 28 14:54:43 2013 -0500 > > Commit: Greg Kroah-Hartman <gregkh@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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