The patch titled
Subject: memory-hotplug: remove reset_node_managed_pages() and reset_node_managed_pages() in hotadd_new_pgdat()
has been added to the -mm tree. Its filename is
memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat.patch
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------------------------------------------------------
From: Xishi Qiu <qiuxishi@xxxxxxxxxx>
Subject: memory-hotplug: remove reset_node_managed_pages() and reset_node_managed_pages() in hotadd_new_pgdat()
After hotadd_new_pgdat()->free_area_init_node(), the pgdat and zone's
spanned/present are both 0, so remove reset_node_managed_pages() and
reset_node_managed_pages().
Signed-off-by: Xishi Qiu <qiuxishi@xxxxxxxxxx>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Taku Izumi <izumi.taku@xxxxxxxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Gu Zheng <guz.fnst@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 25 -------------------------
1 file changed, 25 deletions(-)
diff -puN mm/memory_hotplug.c~memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat
+++ a/mm/memory_hotplug.c
@@ -1073,16 +1073,6 @@ int __ref online_pages(unsigned long pfn
}
#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
-static void reset_node_present_pages(pg_data_t *pgdat)
-{
- struct zone *z;
-
- for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
- z->present_pages = 0;
-
- pgdat->node_present_pages = 0;
-}
-
/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */
static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
{
@@ -1117,21 +1107,6 @@ static pg_data_t __ref *hotadd_new_pgdat
build_all_zonelists(pgdat, NULL);
mutex_unlock(&zonelists_mutex);
- /*
- * zone->managed_pages is set to an approximate value in
- * free_area_init_core(), which will cause
- * /sys/device/system/node/nodeX/meminfo has wrong data.
- * So reset it to 0 before any memory is onlined.
- */
- reset_node_managed_pages(pgdat);
-
- /*
- * When memory is hot-added, all the memory is in offline state. So
- * clear all zones' present_pages because they will be updated in
- * online_pages() and offline_pages().
- */
- reset_node_present_pages(pgdat);
-
return pgdat;
}
_
Patches currently in -mm which might be from qiuxishi@xxxxxxxxxx are
memory-hotplug-fix-wrong-edge-when-hot-add-a-new-node.patch
memblock-make-memblock_overlaps_region-return-bool.patch
mem-hotplug-handle-node-hole-when-initializing-numa_meminfo.patch
memory-hotplug-remove-reset_node_managed_pages-and-reset_node_managed_pages-in-hotadd_new_pgdat.patch
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