mm: compaction: use helper compound_nr in isolate_migratepages_block

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

diff --git a/mm/compaction.c b/mm/compaction.c
index 1fc912ec3a98e66de18abd1907df0513462af3cd..55013a2af817524d0ac2582fe49ab06a0911da58 100644 (file)
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -908,7 +908,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
                                 /* Do not report -EBUSY down the chain */
                                if (ret == -EBUSY)
                                        ret = 0;
-                               low_pfn += (1UL << compound_order(page)) - 1;
+                               low_pfn += compound_nr(page) - 1;
                                goto isolate_fail;
                        }