Messages in this thread | | | Date | Fri, 6 Aug 2021 12:15:01 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH v7 1/2] mm: introduce process_mrelease system call |
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On Fri 06-08-21 02:23:17, Shakeel Butt wrote: > On Thu, Aug 5, 2021 at 11:40 PM Michal Hocko <mhocko@suse.com> wrote: > > > [...] > > I think you really want something like this: > > > > if (flags) > > return -EINVAL; > > > > pid = pidfd_get_pid(fd, &f_flags); > > if (IS_ERR(pid)) > > return PTR_ERR(pid); > > task = get_pid_task(pid, PIDTYPE_PID); > > if (!task) { > > ret = -ESRCH; > > goto put_pid; > > } > > > > /* > > * Make sure to chose a thread which still has a reference to mm > > * during the group exit > > */ > > p = find_lock_task_mm(task); > > if (!p) { > > ret = -ESRCH; > > goto put_task; > > } > > > > mm = task->mm; > > mm = p->mm;
right. Thanks!
-- Michal Hocko SUSE Labs
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