mm: remove MIGRATE_ISOLATE check in hotpath

[linux-beck.git] / mm / compaction.c

diff --git a/mm/compaction.c b/mm/compaction.c
index 5d5b0b259bc90c291b501a09730f747afe974b20..ef53f352b606a00502a87605f6acca40a317ba46 100644 (file)
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -15,6 +15,7 @@
 #include <linux/sysctl.h>
 #include <linux/sysfs.h>
 #include <linux/balloon_compaction.h>
+#include <linux/page-isolation.h>
 #include "internal.h"
 
 #ifdef CONFIG_COMPACTION
@@ -215,7 +216,10 @@ static bool suitable_migration_target(struct page *page)
        int migratetype = get_pageblock_migratetype(page);
 
        /* Don't interfere with memory hot-remove or the min_free_kbytes blocks */
-       if (migratetype == MIGRATE_ISOLATE || migratetype == MIGRATE_RESERVE)
+       if (migratetype == MIGRATE_RESERVE)
+               return false;
+
+       if (is_migrate_isolate(migratetype))
                return false;
 
        /* If the page is a large free page, then allow migration */