Hi,
This is a fix against the patch
do-not-group-pages-by-mobility-type-on-low-memory-systems.patch (include in -mm
tree):
The error "page_group_by_mobility_disabled undefinied" occured if
CONFIG_PAGE_GROUP_BY_MOBILITY is not set.
Signed-off-by: Pierre Peiffer <[email protected]>
---
mm/page_alloc.c | 5 +++++
1 file changed, 5 insertions(+)
Index: b/mm/page_alloc.c
===================================================================
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2297,6 +2297,7 @@ void __meminit build_all_zonelists(void)
}
vm_total_pages = nr_free_pagecache_pages();
+#ifdef CONFIG_PAGE_GROUP_BY_MOBILITY
/*
* Disable grouping by mobility if the number of pages in the
* system is too low to allow the mechanism to work. It would be
@@ -2313,6 +2314,10 @@ void __meminit build_all_zonelists(void)
num_online_nodes(),
page_group_by_mobility_disabled ? "off" : "on",
vm_total_pages);
+#else
+ printk("Built %i zonelists. Total pages: %ld\n",
+ num_online_nodes(), vm_total_pages);
+#endif
}
/*
--
Pierre
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