From: Alexander Atanasov <alexander.atanasov@virtuozzo.com>
To: "Michael S. Tsirkin" <mst@redhat.com>,
David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: kernel@openvz.org,
Alexander Atanasov <alexander.atanasov@virtuozzo.com>,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [RFC PATCH v5 2/8] mm: Enable balloon drivers to report inflated memory
Date: Wed, 19 Oct 2022 12:56:14 +0300 [thread overview]
Message-ID: <20221019095620.124909-3-alexander.atanasov@virtuozzo.com> (raw)
In-Reply-To: <20221019095620.124909-1-alexander.atanasov@virtuozzo.com>
Add counters to be updated by the balloon drivers.
Signed-off-by: Alexander Atanasov <alexander.atanasov@virtuozzo.com>
---
include/linux/balloon.h | 6 ++++++
mm/balloon.c | 15 +++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/include/linux/balloon.h b/include/linux/balloon.h
index 46ac8f61f607..dd8fb8ac5737 100644
--- a/include/linux/balloon.h
+++ b/include/linux/balloon.h
@@ -57,6 +57,12 @@ struct balloon_dev_info {
struct page *page, enum migrate_mode mode);
};
+extern atomic_long_t mem_balloon_inflated_total_kb;
+extern atomic_long_t mem_balloon_inflated_free_kb;
+
+void balloon_set_inflated_total(long inflated_kb);
+void balloon_set_inflated_free(long inflated_kb);
+
struct page *balloon_page_alloc(void);
void balloon_page_enqueue(struct balloon_dev_info *b_dev_info,
struct page *page);
diff --git a/mm/balloon.c b/mm/balloon.c
index 22b3e876bc78..59f606bf4390 100644
--- a/mm/balloon.c
+++ b/mm/balloon.c
@@ -9,6 +9,21 @@
#include <linux/export.h>
#include <linux/balloon.h>
+atomic_long_t mem_balloon_inflated_total_kb = ATOMIC_LONG_INIT(0);
+atomic_long_t mem_balloon_inflated_free_kb = ATOMIC_LONG_INIT(0);
+
+void balloon_set_inflated_total(long inflated_kb)
+{
+ atomic_long_set(&mem_balloon_inflated_total_kb, inflated_kb);
+}
+EXPORT_SYMBOL(balloon_set_inflated_total);
+
+void balloon_set_inflated_free(long inflated_kb)
+{
+ atomic_long_set(&mem_balloon_inflated_free_kb, inflated_kb);
+}
+EXPORT_SYMBOL(balloon_set_inflated_free);
+
static void balloon_page_enqueue_one(struct balloon_dev_info *b_dev_info,
struct page *page)
{
--
2.31.1
next prev parent reply other threads:[~2022-10-19 11:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20221019095620.124909-1-alexander.atanasov@virtuozzo.com>
2022-10-19 9:56 ` [RFC PATCH v5 1/8] mm: Make a place for a common balloon code Alexander Atanasov
2022-10-19 9:56 ` Alexander Atanasov [this message]
2022-10-19 9:56 ` [RFC PATCH v5 3/8] mm: Display inflated memory to users Alexander Atanasov
2022-10-19 9:56 ` [RFC PATCH v5 4/8] mm: Display inflated memory in logs Alexander Atanasov
2022-10-19 9:56 ` [RFC PATCH v5 5/8] drivers: virtio: balloon - report inflated memory Alexander Atanasov
2022-10-19 9:56 ` [RFC PATCH v5 6/8] drivers: vmware: " Alexander Atanasov
2022-10-19 10:26 ` Greg Kroah-Hartman
2022-10-19 10:38 ` Alexander Atanasov
2022-10-19 10:49 ` Greg Kroah-Hartman
2022-10-19 11:06 ` Alexander Atanasov
2022-10-21 6:50 ` Nadav Amit
2022-10-21 7:25 ` Alexander Atanasov
2022-10-21 7:31 ` Nadav Amit
2022-10-21 8:02 ` Alexander Atanasov
2022-10-19 9:56 ` [RFC PATCH v5 7/8] drivers: hyperv: " Alexander Atanasov
2022-10-19 9:56 ` [RFC PATCH v5 8/8] documentation: create a document about how balloon drivers operate Alexander Atanasov
2022-10-19 13:53 ` Jonathan Corbet
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