Messages in this thread | | | Date | Wed, 9 May 2018 16:51:52 +0200 | From | Oleg Nesterov <> | Subject | Re: [PATCH 2/2] memcg: Close the race between migration and installing bprm->mm as mm |
| |
On 05/04, Eric W. Biederman wrote: > > --- a/fs/exec.c > +++ b/fs/exec.c > @@ -1044,6 +1044,8 @@ static int exec_mmap(struct mm_struct *mm) > return 0; > } > mmdrop(active_mm); > + /* The tsk may have migrated before the new mm was attached */ > + mm_sync_memcg_from_task(tsk); > return 0; > }
call_usermodehelper(). perhaps it makes sense to change flush_old_exec() to clear PF_KTHREAD/etc before exec_mmap().
Oleg.
| |