If a PMD changes during a THP migration then migration aborts but the
failure path is doing more work than is necessary.
Cc: sta...@vger.kernel.org
Signed-off-by: Mel Gorman <mgor...@suse.de>
---
mm/migrate.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/migrate.c b/mm/migrate.c
index be787d5..a987525 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1780,7 +1780,8 @@ fail_putback:
putback_lru_page(page);
mod_zone_page_state(page_zone(page),
NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR);
- goto out_fail;
+
+ goto out_unlock;
}
/*
@@ -1854,6 +1855,7 @@ out_dropref:
}
spin_unlock(ptl);
+out_unlock:
unlock_page(page);
put_page(page);
return 0;
--
1.8.4
--
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