From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org, linux-mm@kvack.org,
linux-hyperv@vger.kernel.org, xen-devel@lists.xenproject.org,
linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-s390@vger.kernel.org,
"Andrew Morton" <akpm@linux-foundation.org>,
"David Hildenbrand" <david@redhat.com>,
"Juergen Gross" <jgross@suse.com>,
"Andrew Morton" <akpmt@linux-foundation.org>,
"Michal Hocko" <mhocko@suse.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Julien Grall" <julien@xen.org>,
"Pankaj Gupta" <pankaj.gupta.linux@gmail.com>,
"Baoquan He" <bhe@redhat.com>
Subject: [PATCH v3 6/7] xen/balloon: try to merge system ram resources
Date: Thu, 10 Sep 2020 11:13:39 +0200 [thread overview]
Message-ID: <20200910091340.8654-7-david@redhat.com> (raw)
In-Reply-To: <20200910091340.8654-1-david@redhat.com>
Let's try to merge system ram resources we add, to minimize the number
of resources in /proc/iomem. We don't care about the boundaries of
individual chunks we added.
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: Andrew Morton <akpmt@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Roger Pau Monné <roger.pau@citrix.com>
Cc: Julien Grall <julien@xen.org>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
drivers/xen/balloon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 9f40a294d398d..b57b2067ecbfb 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -331,7 +331,7 @@ static enum bp_state reserve_additional_memory(void)
mutex_unlock(&balloon_mutex);
/* add_memory_resource() requires the device_hotplug lock */
lock_device_hotplug();
- rc = add_memory_resource(nid, resource, MHP_NONE);
+ rc = add_memory_resource(nid, resource, MEMHP_MERGE_RESOURCE);
unlock_device_hotplug();
mutex_lock(&balloon_mutex);
--
2.26.2
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next prev parent reply other threads:[~2020-09-10 9:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 9:13 [PATCH v3 0/7] mm/memory_hotplug: selective merging of system ram resources David Hildenbrand
2020-09-10 9:13 ` [PATCH v3 1/7] kernel/resource: make release_mem_region_adjustable() never fail David Hildenbrand
2020-09-10 9:13 ` [PATCH v3 2/7] kernel/resource: move and rename IORESOURCE_MEM_DRIVER_MANAGED David Hildenbrand
2020-09-10 9:13 ` [PATCH v3 3/7] mm/memory_hotplug: prepare passing flags to add_memory() and friends David Hildenbrand
2020-09-10 9:53 ` Pankaj Gupta
2020-09-11 2:21 ` kernel test robot
2020-09-11 8:20 ` David Hildenbrand
2020-09-15 8:46 ` kernel test robot
2020-09-10 9:13 ` [PATCH v3 4/7] mm/memory_hotplug: MEMHP_MERGE_RESOURCE to specify merging of System RAM resources David Hildenbrand
2020-09-10 10:03 ` Pankaj Gupta
2020-09-10 9:13 ` [PATCH v3 5/7] virtio-mem: try to merge system ram resources David Hildenbrand
2020-09-10 10:10 ` Pankaj Gupta
2020-09-10 9:13 ` David Hildenbrand [this message]
2020-09-10 9:13 ` [PATCH v3 7/7] hv_balloon: " David Hildenbrand
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