oom: dump_tasks use find_lock_task_mm too fix

When find_lock_task_mm() returns a thread other than p in dump_tasks(),
its name should be displayed instead.  This is the thread that will be
targeted by the oom killer, not its mm-less parent.

This also allows us to safely dereference task->comm without needing
get_task_comm().

While we're here, remove the cast on task_cpu(task) as Andrew suggested.

Signed-off-by: David Rientjes <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions