From: Andrea Arcangeli <aarcange@redhat.com>
To: zhong jiang <zhongjiang@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@kernel.org>,
linux-mm@kvack.org, syzkaller-bugs@googlegroups.com,
syzbot+cbb52e396df3e565ab02@syzkaller.appspotmail.com,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Peter Xu <peterx@redhat.com>, Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH 1/1 v2] userfaultfd: use RCU to free the task struct when fork fails
Date: Mon, 29 Apr 2019 10:37:11 -0400 [thread overview]
Message-ID: <20190429143711.GA11265@redhat.com> (raw)
In-Reply-To: <5CC69B6C.9090608@huawei.com>
Hello,
On Mon, Apr 29, 2019 at 02:36:28PM +0800, zhong jiang wrote:
> if we disable the CONFIG_MEMCG, __delay_free_task will not to be used.
Yes, the compiler optimizes that away at build time.
Thanks,
Andrea
next prev parent reply other threads:[~2019-04-29 21:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-25 22:56 [PATCH 0/2] " Andrea Arcangeli
2019-03-25 22:56 ` [PATCH 1/2] " Andrea Arcangeli
2019-03-26 8:07 ` Kirill Tkhai
2019-03-26 8:18 ` Kirill Tkhai
2019-03-26 8:19 ` Kirill Tkhai
2019-03-26 8:56 ` Michal Hocko
2019-03-27 0:16 ` Andrea Arcangeli
2019-03-27 8:49 ` Michal Hocko
2019-04-26 4:48 ` Andrew Morton
2019-04-29 3:57 ` [PATCH 1/1 v2] " Andrea Arcangeli
2019-04-29 6:36 ` zhong jiang
2019-04-29 14:37 ` Andrea Arcangeli [this message]
2019-03-25 22:56 ` [PATCH 2/2] mm: change mm_update_next_owner() to update mm->owner with WRITE_ONCE Andrea Arcangeli
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