From: Michal Hocko <mhocko@suse.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>,
"David Hildenbrand (Arm)" <david@kernel.org>,
akpm@linux-foundation.org, hca@linux.ibm.com,
linux-s390@vger.kernel.org, brauner@kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
timmurray@google.com
Subject: Re: [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios
Date: Wed, 29 Apr 2026 10:18:42 +0200 [thread overview]
Message-ID: <afG-4hq7Hr62Uu6J@tiehlicka> (raw)
In-Reply-To: <afFco71vwmpQy3pk@google.com>
On Tue 28-04-26 18:19:31, Minchan Kim wrote:
> On Tue, Apr 28, 2026 at 08:56:36AM +0200, Michal Hocko wrote:
[...]
> > DESCRIPTION
> > The process_mrelease() system call is used to free the memory of
> > an exiting process.
>
> "Free the memory of an exiting process" implies all memory, not just
> anonymous. User cannot know it will free only anonymous, and I am trying to
> make it work as intended by completing a symmetric reclamation path.
Page cache doesn't belong to any process.
[...]
> >From cf292f8f8ead8df9161aad342c36633ffa90257f Mon Sep 17 00:00:00 2001
> From: Minchan Kim <minchan@kernel.org>
> Date: Tue, 28 Apr 2026 16:39:06 -0700
> Subject: [PATCH] mm: process_mrelease: skip LRU movement and expedite clean
> file folio reclaim
I will let others to discuss this. I maintain my position that this is a
hack for a very particular use case and you still seem to not explain
non-Android users of the syscall. Anyway, I will not repeat myself here.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2026-04-29 8:18 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 23:02 [PATCH v1 0/3] mm: process_mrelease: expedite clean file folio reclaim and add auto-kill Minchan Kim
2026-04-21 23:02 ` [PATCH v1 1/3] mm: process_mrelease: expedite clean file folio reclaim via mmu_gather Minchan Kim
2026-04-24 7:56 ` David Hildenbrand (Arm)
2026-04-24 21:24 ` Minchan Kim
2026-04-27 9:29 ` David Hildenbrand (Arm)
2026-04-27 22:04 ` Minchan Kim
2026-04-24 19:33 ` Matthew Wilcox
2026-04-24 21:56 ` Minchan Kim
2026-04-21 23:02 ` [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios Minchan Kim
2026-04-22 7:22 ` Baolin Wang
2026-04-23 23:38 ` Minchan Kim
2026-04-24 7:51 ` Michal Hocko
2026-04-24 7:57 ` David Hildenbrand (Arm)
2026-04-24 19:15 ` Minchan Kim
2026-04-27 7:16 ` Michal Hocko
2026-04-27 16:48 ` Suren Baghdasaryan
2026-04-27 17:15 ` Michal Hocko
2026-04-27 23:05 ` Minchan Kim
2026-04-28 6:56 ` Michal Hocko
2026-04-29 1:19 ` Minchan Kim
2026-04-29 8:18 ` Michal Hocko [this message]
2026-04-29 9:09 ` David Hildenbrand (Arm)
2026-04-29 10:33 ` Michal Hocko
2026-04-29 13:07 ` David Hildenbrand (Arm)
2026-04-29 14:44 ` Michal Hocko
2026-04-29 21:41 ` Minchan Kim
2026-04-29 8:55 ` David Hildenbrand (Arm)
2026-04-29 21:42 ` Minchan Kim
2026-04-24 19:26 ` Minchan Kim
2026-04-21 23:02 ` [PATCH v1 3/3] mm: process_mrelease: introduce PROCESS_MRELEASE_REAP_KILL flag Minchan Kim
2026-04-24 7:57 ` Michal Hocko
2026-04-24 22:49 ` Minchan Kim
2026-04-27 7:02 ` Michal Hocko
2026-04-27 22:03 ` Minchan Kim
2026-04-28 7:01 ` Michal Hocko
2026-04-28 22:37 ` Minchan Kim
2026-04-29 8:25 ` Michal Hocko
2026-04-29 20:01 ` Suren Baghdasaryan
2026-04-29 21:17 ` Minchan Kim
2026-04-29 21:16 ` Minchan Kim
2026-04-27 20:34 ` Suren Baghdasaryan
2026-04-27 22:52 ` Minchan Kim
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