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| author | Xishi Qiu <qiuxishi@huawei.com> | 2012-10-09 03:31:51 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 11:22:43 +0400 |
| commit | 1e8537baacd59e96bbe5f8d3d32feafd11f509fe (patch) | |
| tree | 43c06a9d398687ef2c7225ab1af0ae8ed4e24676 | |
| parent | 38a76013ad809beb0b52f60d365c960d035bd83c (diff) | |
| download | linux-1e8537baacd59e96bbe5f8d3d32feafd11f509fe.tar.xz | |
memory-hotplug: build zonelists when offlining pages
online_pages() does build_all_zonelists() and zone_pcp_update(), I think
offline_pages() should do it too.
When the zone has no memory to allocate, remove it from other nodes'
zonelists. zone_batchsize() depends on zone's present pages, if zone's
present pages are changed, zone's pcp should be updated.
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memory_hotplug.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 6a5b90d0cfd7..b35016156c19 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -970,8 +970,13 @@ repeat: init_per_zone_wmark_min(); - if (!populated_zone(zone)) + if (!populated_zone(zone)) { zone_pcp_reset(zone); + mutex_lock(&zonelists_mutex); + build_all_zonelists(NULL, NULL); + mutex_unlock(&zonelists_mutex); + } else + zone_pcp_update(zone); if (!node_present_pages(node)) { node_clear_state(node, N_HIGH_MEMORY); |