Re: [RFC PATCH] livepatch: allow removal of a disabled patch

From: Josh Poimboeuf
Date: Tue May 03 2016 - 17:37:18 EST

On Mon, May 02, 2016 at 01:57:22PM +0200, Miroslav Benes wrote:
> 1. Do we really need a completion? If I am not missing something
> kobject_del() always waits for sysfs callers to leave thanks to kernfs
> active protection.

What do you mean by "kernfs active protection"? I see that
kernfs_remove() gets the kernfs_mutex lock, but I can't find anywhere
that a write to a sysfs file uses that lock.

I'm probably missing something...