Re: [PATCH] elf_fdpic_core_dump: don't take tasklist_lock

Oleg Nesterov <[email protected]> wrote:

> do_each_thread() is rcu-safe, and all tasks which use this ->mm must
> sleep in wait_for_completion(&mm->core_done) at this point, so we can
> use RCU locks.

Looks reasonable.

Acked-By: David Howells <[email protected]>
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References:
- [PATCH] elf_fdpic_core_dump: don't take tasklist_lock
  - From: Oleg Nesterov <[email protected]>

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