[3/3] mm/zsmalloc.c: improve readability for async_free_zspage()

Commit Message

Miaohe Lin June 24, 2021, 12:39 p.m. UTC

The class is extracted from pool->size_class[class_idx] again before
calling __free_zspage(). It looks like class will change after we fetch
the class lock. But this is misleading as class will stay unchanged.

Signed-off-by: Miaohe Lin <[e-mail]>
---
 mm/zsmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 0b4b23740d78..8598ee07284b 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -2161,7 +2161,7 @@  static void async_free_zspage(struct work_struct *work)
 		VM_BUG_ON(fullness != ZS_EMPTY);
 		class = pool->size_class[class_idx];
 		spin_lock(&class->lock);
-		__free_zspage(pool, pool->size_class[class_idx], zspage);
+		__free_zspage(pool, class, zspage);
 		spin_unlock(&class->lock);
 	}
 };