diff mbox series

[v4,8/8] hv_balloon: try to merge system ram resources

Message ID 20200911103459.10306-9-david@redhat.com (mailing list archive)
State New, archived
Headers show
Series selective merging of system ram resources | expand

Commit Message

David Hildenbrand Sept. 11, 2020, 10:34 a.m. UTC 
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: Wei Liu <wei.liu@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.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/hv/hv_balloon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Wei Yang Sept. 16, 2020, 12:52 p.m. UTC | #1 
On Fri, Sep 11, 2020 at 12:34:59PM +0200, David Hildenbrand wrote:
>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: Wei Liu <wei.liu@kernel.org>
>Cc: Andrew Morton <akpm@linux-foundation.org>
>Cc: Michal Hocko <mhocko@suse.com>
>Cc: "K. Y. Srinivasan" <kys@microsoft.com>
>Cc: Haiyang Zhang <haiyangz@microsoft.com>
>Cc: Stephen Hemminger <sthemmin@microsoft.com>
>Cc: Wei Liu <wei.liu@kernel.org>
>Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
>Cc: Baoquan He <bhe@redhat.com>
>Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Wei Yang <richard.weiyang@linux.alibaba.com>

>---
> drivers/hv/hv_balloon.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
>index 3c0d52e244520..b64d2efbefe71 100644
>--- a/drivers/hv/hv_balloon.c
>+++ b/drivers/hv/hv_balloon.c
>@@ -726,7 +726,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size,
> 
> 		nid = memory_add_physaddr_to_nid(PFN_PHYS(start_pfn));
> 		ret = add_memory(nid, PFN_PHYS((start_pfn)),
>-				(HA_CHUNK << PAGE_SHIFT), MHP_NONE);
>+				(HA_CHUNK << PAGE_SHIFT), MEMHP_MERGE_RESOURCE);
> 
> 		if (ret) {
> 			pr_err("hot_add memory failed error is %d\n", ret);
>-- 
>2.26.2
diff mbox series

Patch

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 3c0d52e244520..b64d2efbefe71 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -726,7 +726,7 @@  static void hv_mem_hot_add(unsigned long start, unsigned long size,
 
 		nid = memory_add_physaddr_to_nid(PFN_PHYS(start_pfn));
 		ret = add_memory(nid, PFN_PHYS((start_pfn)),
-				(HA_CHUNK << PAGE_SHIFT), MHP_NONE);
+				(HA_CHUNK << PAGE_SHIFT), MEMHP_MERGE_RESOURCE);
 
 		if (ret) {
 			pr_err("hot_add memory failed error is %d\n", ret);