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From: Shakeel Butt <shakeelb@google.com>
To: Suren Baghdasaryan <surenb@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>,
	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 19:03:56 -0700	[thread overview]
Message-ID: <CALvZod7ehaHoWRD-Pzvet5c1LQ6DYDHjs=xbJWZYEdMsgTpRgA@mail.gmail.com> (raw)
In-Reply-To: <20210723011436.60960-1-surenb@google.com>

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?


> +       if (!__oom_reap_task_mm(mm))
> +               ret = -EAGAIN;
> +       mmap_read_unlock(mm);
> +


  parent reply	other threads:[~2021-07-23  2:04 UTC|newest]

Thread overview: 20+ 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 ` [PATCH v3 2/2] mm: wire up syscall process_mrelease Suren Baghdasaryan
2021-07-23  2:03 ` Shakeel Butt [this message]
2021-07-23  4:47   ` [PATCH v3 1/2] mm: introduce process_mrelease system call Suren Baghdasaryan
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  8:53         ` Michal Hocko
2021-07-23 13:46           ` Shakeel Butt
2021-07-23 16:08             ` Suren Baghdasaryan
2021-07-23 17:00               ` Shakeel Butt
2021-07-26  7:27                 ` Michal Hocko
2021-07-26 13:43                   ` Shakeel Butt
2021-08-02 19:53                     ` Suren Baghdasaryan
2021-08-02 20:05                       ` Shakeel Butt
2021-08-02 20:08                         ` Suren Baghdasaryan
2021-08-02 22:16                           ` Suren Baghdasaryan
2021-07-23 13:40       ` Shakeel Butt
2021-07-26  8:20   ` Michal Hocko

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