[ldv-project] [BUG] act_ife: sleeping functions called in atomic context

[Alexey Khoroshilov]

On 17.06.2016 08:38, Cong Wang wrote:
> On Thu, Jun 16, 2016 at 7:14 PM, Cong Wang <xiyou.wangcong at gmail.com> wrote:
>>
>> I think we can just remove that tcf_lock, I am testing a patch now.
> 
> Please try the attached patch, I will do more tests tomorrow.
> 
> Thanks!
> 

Looks good with two notes:
1. add_metainfo() still contains
ret = ops->alloc(mi, metaval);
that allocates memory with GFP_KERNEL.
So, I would add gfpflag argument to alloc() operation.

2. It makes sense to mention ife_mod_lock in the comment before
add_metainfo(), because ife_mod_lock is the reason to use GFP_ATOMIC there.

--
Alexey