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From:   Miaohe Lin <linmiaohe@huawei.com>
To:     <akpm@linux-foundation.org>
CC:     <vitaly.wool@konsulko.com>, <linux-mm@kvack.org>,
        <linux-kernel@vger.kernel.org>, <linmiaohe@huawei.com>
Subject: [PATCH 3/9] mm/z3fold: minor clean up for z3fold_free
Date:   Sat, 19 Feb 2022 17:25:27 +0800
Message-ID: <20220219092533.12596-4-linmiaohe@huawei.com>
In-Reply-To: <20220219092533.12596-1-linmiaohe@huawei.com>
References: <20220219092533.12596-1-linmiaohe@huawei.com>
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Use put_z3fold_header() to pair with get_z3fold_header. Also fix the wrong
comments. Minor readability improvement.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/z3fold.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 87689f50f709..eb89271aea83 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1187,9 +1187,9 @@ static int z3fold_alloc(struct z3fold_pool *pool, size_t size, gfp_t gfp,
  * @handle:	handle associated with the allocation returned by z3fold_alloc()
  *
  * In the case that the z3fold page in which the allocation resides is under
- * reclaim, as indicated by the PG_reclaim flag being set, this function
- * only sets the first|last_chunks to 0.  The page is actually freed
- * once both buddies are evicted (see z3fold_reclaim_page() below).
+ * reclaim, as indicated by the PAGE_CLAIMED flag being set, this function
+ * only sets the first|middle|last_chunks to 0.  The page is actually freed
+ * once all buddies are evicted (see z3fold_reclaim_page() below).
  */
 static void z3fold_free(struct z3fold_pool *pool, unsigned long handle)
 {
@@ -1247,7 +1247,7 @@ static void z3fold_free(struct z3fold_pool *pool, unsigned long handle)
 	}
 	if (page_claimed) {
 		/* the page has not been claimed by us */
-		z3fold_page_unlock(zhdr);
+		put_z3fold_header(zhdr);
 		return;
 	}
 	if (test_and_set_bit(NEEDS_COMPACTING, &page->private)) {
-- 
2.23.0