From: SeongJae Park <sj@kernel.org>
To: David Hildenbrand <david@redhat.com>
Cc: "SeongJae Park" <sj@kernel.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
"Broadcom internal kernel review list"
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"Andrew Morton" <akpm@linux-foundation.org>,
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"Liam R. Howlett" <Liam.Howlett@oracle.com>,
"Vlastimil Babka" <vbabka@suse.cz>,
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"Jason Wang" <jasowang@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>, "Zi Yan" <ziy@nvidia.com>
Subject: Re: [PATCH v1 01/23] vmw_balloon: adjust BALLOON_DEFLATE when deflating while migrating
Date: Tue, 21 Oct 2025 18:03:44 -0700 [thread overview]
Message-ID: <20251022010345.120425-1-sj@kernel.org> (raw)
In-Reply-To: <20251021125929.377194-2-david@redhat.com>
On Tue, 21 Oct 2025 14:59:06 +0200 David Hildenbrand <david@redhat.com> wrote:
> When we're effectively deflating the balloon while migrating a page
> because inflating the new page failed, we're not adjusting
> BALLOON_DEFLATE.
>
> Let's do that. This is a preparation for factoring out this handling to
> the core code, making it work in a similar way first.
>
> As this (deflating while migrating because of inflation error) is a
> corner case that I don't really expect to happen in practice
> and the stats are not that crucial, this likely doesn't classify as a fix.
>
> Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Thanks,
SJ
[...]
next prev parent reply other threads:[~2025-10-22 1:03 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-21 12:59 [PATCH v1 00/23] mm: balloon infrastructure cleanups David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 01/23] vmw_balloon: adjust BALLOON_DEFLATE when deflating while migrating David Hildenbrand
2025-10-22 1:03 ` SeongJae Park [this message]
2025-10-21 12:59 ` [PATCH v1 02/23] vmw_balloon: remove vmballoon_compaction_init() David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 03/23] powerpc/pseries/cmm: remove cmm_balloon_compaction_init() David Hildenbrand
2025-10-21 20:43 ` Michael S. Tsirkin
2025-10-22 8:37 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 04/23] mm/balloon_compaction: centralize basic page migration handling David Hildenbrand
2025-10-21 20:50 ` Michael S. Tsirkin
2025-10-22 8:37 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 05/23] mm/balloon_compaction: centralize adjust_managed_page_count() handling David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 06/23] vmw_balloon: stop using the balloon_dev_info lock David Hildenbrand
2025-10-21 20:57 ` Michael S. Tsirkin
2025-10-22 8:40 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 07/23] mm/balloon_compaction: use a device-independent balloon (list) lock David Hildenbrand
2025-10-21 20:52 ` Michael S. Tsirkin
2025-10-22 8:42 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 08/23] mm/balloon_compaction: remove dependency on page lock David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 09/23] mm/balloon_compaction: make balloon_mops static David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 10/23] mm/balloon_compaction: drop fs.h include from balloon_compaction.h David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 11/23] drivers/virtio/virtio_balloon: stop using balloon_page_push/pop() David Hildenbrand
2025-10-21 20:59 ` Michael S. Tsirkin
2025-10-22 8:43 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 12/23] mm/balloon_compaction: remove balloon_page_push/pop() David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 13/23] mm/balloon_compaction: fold balloon_mapping_gfp_mask() into balloon_page_alloc() David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 14/23] mm/balloon_compaction: move internal helpers to memory_compaction.c David Hildenbrand
2025-10-21 15:36 ` Zi Yan
2025-10-21 15:37 ` David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 15/23] mm/balloon_compaction: assert that the balloon_pages_lock is held David Hildenbrand
2025-10-21 12:59 ` [PATCH v1 16/23] mm/balloon_compaction: mark remaining functions for having proper kerneldoc David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 17/23] mm/balloon_compaction: remove "extern" from functions David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 18/23] mm/vmscan: drop inclusion of balloon_compaction.h David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 19/23] mm: rename balloon_compaction.(c|h) to balloon.(c|h) David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 20/23] mm/kconfig: make BALLOON_COMPACTION depend on MIGRATION David Hildenbrand
2025-10-21 17:13 ` Randy Dunlap
2025-10-21 18:43 ` David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 21/23] mm: rename CONFIG_BALLOON_COMPACTION to CONFIG_BALLOON_MIGRATION David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 22/23] mm: rename CONFIG_MEMORY_BALLOON -> CONFIG_BALLOON David Hildenbrand
2025-10-21 15:00 ` [PATCH v1 23/23] MAINTAINERS: move memory balloon infrastructure to "MEMORY MANAGEMENT - BALLOON" David Hildenbrand
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