Revert "kernfs: remove kernfs_addrm_cxt"
This reverts commit 99177a34110889a8f2c36420c34e3bcc9bfd8a70.
Tejun writes:
I'm sorry but can you please revert the whole series?
get_active() waiting while a node is deactivated has potential
to lead to deadlock and that deactivate/reactivate interface is
something fundamentally flawed and that cgroup will have to work
with the remove_self() like everybody else. IOW, I think the
first posting was correct.
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 9b5a4bb..61bd7ae 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -89,6 +89,10 @@
struct rb_node rb;
+ union {
+ struct kernfs_node *removed_list;
+ } u;
+
const void *ns; /* namespace tag */
unsigned int hash; /* ns + name hash */
union {