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-rw-r--r--mm/compaction.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 952dc2fb24e5..777c088e9113 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -969,7 +969,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
* is safe to read and it's 0 for tail pages.
*/
if (unlikely(PageCompound(page))) {
- low_pfn += (1UL << compound_order(page)) - 1;
+ low_pfn += compound_nr(page) - 1;
goto isolate_fail;
}
}