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Thu, 02 Oct 2025 08:38:17 -0400 X-MC-Unique: xFab0D_bOfSIV2_j4PNYDA-1 X-Mimecast-MFC-AGG-ID: xFab0D_bOfSIV2_j4PNYDA_1759408695 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1B9831955DDD; Thu, 2 Oct 2025 12:38:15 +0000 (UTC) Received: from localhost (unknown [10.72.112.47]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 695AB300018D; Thu, 2 Oct 2025 12:38:12 +0000 (UTC) Date: Thu, 2 Oct 2025 20:38:08 +0800 From: Baoquan He To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, chrisl@kernel.org, kasong@tencent.com, youngjun.park@lge.com, aaron.lu@intel.com, baohua@kernel.org, shikemeng@huaweicloud.com, nphamcs@gmail.com Subject: Re: [PATCH v3 1/2] mm/swap: do not choose swap device according to numa node Message-ID: References: <20250930063311.14126-1-bhe@redhat.com> <20250930063311.14126-2-bhe@redhat.com> MIME-Version: 1.0 In-Reply-To: <20250930063311.14126-2-bhe@redhat.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 4UNlcttF-6t0ekvfbX4K-GE7AzhK3NHK2PribTPmjO4_1759408695 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 0FE5F1C0012 X-Stat-Signature: dm1ejnrmpyf3x9y7b6h8wqho8ymbfp9o X-Rspam-User: X-HE-Tag: 1759408698-432869 X-HE-Meta: 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 aGbLI0Y7 L/OfL6yEm9NaZh7B+f6IF7V2ynkpl3RNLp91xlavb9RY4tx0QnKI4Rf2QwDXn1WVnfFZ7/mohuvn5zq1XZdx9jlBQiRaTxvTqVz6Y45P43+erj4Pc1zPHORMJCGD9atoAhLZL/yD9Kv6DnNGW+L0KGDsZSeqGbF8Y94IwUubvpH34YSRAi+tZOa+JlTomued/CE9vh1h18z8bxOLq+/vFNph8BOF1fQMe4EEXgsgQ05jt86ObnKaCzvJXiU+U4mMy9PAAn5lhSJHJDIAmk4d0rziuL0leIp/8ekhtqMSvxx5GanfB3akYNC3bYwXPBrhtvDAYxLfCA4VYhOD+K37I68V/CE1JSB3lgLy/ZLVs7tiCihpqneuRj9cwWyJ2Ou/22eneTYSwGMCB8fzAWceftpPqT5s6qtJGbrL0X8ZtIbwWKC+GiFkFZImFyix9wk4eC9mgwjOXoTc8p5c= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 09/30/25 at 02:33pm, Baoquan He wrote: > This reverts commit a2468cc9bfdf ("swap: choose swap device according > to numa node"). > > After this patch, the behaviour will change back to pre-commit > a2468cc9bfdf. Means the priority will be set from -1 then downwards by > default, and when swapping, it will exhault swap device one by one > according to priority from high to low. This is preparation work for > later change. > > [root@hp-dl385g10-03 ~]# swapon > NAME TYPE SIZE USED PRIO > /dev/zram0 partition 16G 16G -1 > /dev/zram1 partition 16G 966.2M -2 > /dev/zram2 partition 16G 0B -3 > /dev/zram3 partition 16G 0B -4 > > Signed-off-by: Baoquan He Forgot Chris's for this patch: Suggested-by: Chris Li > --- > Documentation/admin-guide/mm/swap_numa.rst | 78 ---------------------- > include/linux/swap.h | 11 +-- > mm/swapfile.c | 76 ++++----------------- > 3 files changed, 14 insertions(+), 151 deletions(-) > delete mode 100644 Documentation/admin-guide/mm/swap_numa.rst ......