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-rw-r--r--mm/compaction.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 3319e0872d01..6cc4bea33dcb 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1164,7 +1164,9 @@ static bool suitable_migration_target(struct compact_control *cc,
static inline unsigned int
freelist_scan_limit(struct compact_control *cc)
{
- return (COMPACT_CLUSTER_MAX >> cc->fast_search_fail) + 1;
+ unsigned short shift = BITS_PER_LONG - 1;
+
+ return (COMPACT_CLUSTER_MAX >> min(shift, cc->fast_search_fail)) + 1;
}
/*