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Wed, 12 Mar 2025 00:08:00 +0000 (UTC) Received: from h1.redhat.com (unknown [10.22.88.56]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 989161956094; Wed, 12 Mar 2025 00:07:53 +0000 (UTC) From: Nico Pache To: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, jerrin.shaji-george@broadcom.com, bcm-kernel-feedback-list@broadcom.com, arnd@arndb.de, gregkh@linuxfoundation.org, mst@redhat.com, david@redhat.com, jasowang@redhat.com, xuanzhuo@linux.alibaba.com, eperezma@redhat.com, jgross@suse.com, sstabellini@kernel.org, oleksandr_tyshchenko@epam.com, akpm@linux-foundation.org, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, nphamcs@gmail.com, yosry.ahmed@linux.dev, kanchana.p.sridhar@intel.com, alexander.atanasov@virtuozzo.com Subject: [RFC 4/5] vmx_balloon: update the NR_BALLOON_PAGES state Date: Tue, 11 Mar 2025 18:06:59 -0600 Message-ID: <20250312000700.184573-5-npache@redhat.com> In-Reply-To: <20250312000700.184573-1-npache@redhat.com> References: <20250312000700.184573-1-npache@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 7FED740002 X-Stat-Signature: u8a7ambwpxgdnwrt1h1981b8bfckewzc X-HE-Tag: 1741738089-740417 X-HE-Meta: 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 3qurkYli ZN2b41tqd5Zlosg3a1YDbeb8HOIj3os1+VDmD4UVW67Ybrh6yOIDpOPuFB3aEsjnavF2ka8rpoDft/2M/sk8LRHxI9EjbjUKp4W7tHVXTddsexslZ6hNULVphg8dAxfDqLC7BI8CBmsrY2jr+UiEsTnm4w0sSSruaY/VfsFMkUUZ/Fa8v/LqrWHmhz4YhPCaM1OgL8+SEoKr3dNcGu+4fQdaWkcxgG2qG6Q24k66tNAUhV1gNZaLWH7VJ+IfC04zhT6BTwuaBEhACshou7cDoHst84f7zOxVOhFH5qDlAVzNCrcUhTw7+cfrKArIBkTvSNlXXurWjIw1EFHeKBgYcFdIWS0IRRX06YJriAp6IXdSe62Tnoi3NQAQvHw== 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: Update the NR_BALLOON_PAGES counter when pages are added to or removed from the VMware balloon. Signed-off-by: Nico Pache --- drivers/misc/vmw_balloon.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c index c817d8c21641..2c70b08c6fb3 100644 --- a/drivers/misc/vmw_balloon.c +++ b/drivers/misc/vmw_balloon.c @@ -673,6 +673,8 @@ static int vmballoon_alloc_page_list(struct vmballoon *b, vmballoon_stats_page_inc(b, VMW_BALLOON_PAGE_STAT_ALLOC, ctl->page_size); + mod_node_page_state(page_pgdat(page), NR_BALLOON_PAGES, + vmballoon_page_in_frames(ctl->page_size)); } if (page) { @@ -915,6 +917,8 @@ static void vmballoon_release_page_list(struct list_head *page_list, list_for_each_entry_safe(page, tmp, page_list, lru) { list_del(&page->lru); __free_pages(page, vmballoon_page_order(page_size)); + mod_node_page_state(page_pgdat(page), NR_BALLOON_PAGES, + -vmballoon_page_in_frames(page_size)); } if (n_pages) @@ -1129,7 +1133,6 @@ static void vmballoon_inflate(struct vmballoon *b) /* Update the balloon size */ atomic64_add(ctl.n_pages * page_in_frames, &b->size); - vmballoon_enqueue_page_list(b, &ctl.pages, &ctl.n_pages, ctl.page_size);