linux-kernel - [PATCH] mm/swapfile.c: fix comments for swapcache

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Message-ID: <20200212145754.27123-1-chenwandun@huawei.com>
Date:   Wed, 12 Feb 2020 22:57:54 +0800
From:   Chen Wandun <chenwandun@...wei.com>
To:     <akpm@...ux-foundation.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>
CC:     <chenwandun@...wei.com>
Subject: [PATCH] mm/swapfile.c: fix comments for swapcache_prepare

the -EEXIST returned by __swap_duplicate means there is a swap
cache instead -EBUSY

Signed-off-by: Chen Wandun <chenwandun@...wei.com>
---
 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 2c33ff456ed5..0e23c123a545 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3476,7 +3476,7 @@ int swap_duplicate(swp_entry_t entry)
  *
  * Called when allocating swap cache for existing swap entry,
  * This can return error codes. Returns 0 at success.
- * -EBUSY means there is a swap cache.
+ * -EEXIST means there is a swap cache.
  * Note: return code is different from swap_duplicate().
  */
 int swapcache_prepare(swp_entry_t entry)
-- 
2.17.1