From: Suren Baghdasaryan <surenb@google.com>
To: Shakeel Butt <shakeelb@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@kernel.org>, Michal Hocko <mhocko@suse.com>,
David Rientjes <rientjes@google.com>,
Matthew Wilcox <willy@infradead.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Roman Gushchin <guro@fb.com>, Rik van Riel <riel@surriel.com>,
Minchan Kim <minchan@kernel.org>,
Christian Brauner <christian@brauner.io>,
Christoph Hellwig <hch@infradead.org>,
Oleg Nesterov <oleg@redhat.com>,
David Hildenbrand <david@redhat.com>,
Jann Horn <jannh@google.com>, Andy Lutomirski <luto@kernel.org>,
Christian Brauner <christian.brauner@ubuntu.com>,
Florian Weimer <fweimer@redhat.com>,
Jan Engelhardt <jengelh@inai.de>,
Tim Murray <timmurray@google.com>,
Linux API <linux-api@vger.kernel.org>,
Linux MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
kernel-team <kernel-team@android.com>
Subject: Re: [PATCH v3 1/2] mm: introduce process_mrelease system call
Date: Thu, 22 Jul 2021 21:47:56 -0700 [thread overview]
Message-ID: <CAJuCfpFZeQez77CB7odfaSpi3JcLQ_Nz0WvDTsra1VPoA-j7sg@mail.gmail.com> (raw)
In-Reply-To: <CALvZod7ehaHoWRD-Pzvet5c1LQ6DYDHjs=xbJWZYEdMsgTpRgA@mail.gmail.com>
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On Thu, Jul 22, 2021, 7:04 PM Shakeel Butt <shakeelb@google.com> wrote:
> On Thu, Jul 22, 2021 at 6:14 PM Suren Baghdasaryan <surenb@google.com>
> wrote:
> >
> [...]
> > +
> > + mmap_read_lock(mm);
>
> How about mmap_read_trylock(mm) and return -EAGAIN on failure?
>
That sounds like a good idea. Thanks! I'll add that in the next respin.
>
> > + if (!__oom_reap_task_mm(mm))
> > + ret = -EAGAIN;
> > + mmap_read_unlock(mm);
> > +
>
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next prev parent reply other threads:[~2021-07-23 4:48 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-23 1:14 [PATCH v3 1/2] mm: introduce process_mrelease system call Suren Baghdasaryan
2021-07-23 1:14 ` Suren Baghdasaryan
2021-07-23 1:14 ` [PATCH v3 2/2] mm: wire up syscall process_mrelease Suren Baghdasaryan
2021-07-23 1:14 ` Suren Baghdasaryan
2021-07-23 2:03 ` [PATCH v3 1/2] mm: introduce process_mrelease system call Shakeel Butt
2021-07-23 2:03 ` Shakeel Butt
2021-07-23 4:47 ` Suren Baghdasaryan [this message]
2021-07-23 6:20 ` Michal Hocko
2021-07-23 8:11 ` Suren Baghdasaryan
2021-07-23 8:15 ` David Hildenbrand
2021-07-23 8:18 ` Suren Baghdasaryan
2021-07-23 8:18 ` Suren Baghdasaryan
2021-07-23 8:53 ` Michal Hocko
2021-07-23 13:46 ` Shakeel Butt
2021-07-23 13:46 ` Shakeel Butt
2021-07-23 16:08 ` Suren Baghdasaryan
2021-07-23 16:08 ` Suren Baghdasaryan
2021-07-23 17:00 ` Shakeel Butt
2021-07-23 17:00 ` Shakeel Butt
2021-07-26 7:27 ` Michal Hocko
2021-07-26 13:43 ` Shakeel Butt
2021-07-26 13:43 ` Shakeel Butt
2021-08-02 19:53 ` Suren Baghdasaryan
2021-08-02 19:53 ` Suren Baghdasaryan
2021-08-02 20:05 ` Shakeel Butt
2021-08-02 20:05 ` Shakeel Butt
2021-08-02 20:08 ` Suren Baghdasaryan
2021-08-02 20:08 ` Suren Baghdasaryan
2021-08-02 22:16 ` Suren Baghdasaryan
2021-08-02 22:16 ` Suren Baghdasaryan
2021-07-23 13:40 ` Shakeel Butt
2021-07-23 13:40 ` Shakeel Butt
2021-07-26 8:20 ` Michal Hocko
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