From 2c1e9a2c668b4606e9c27fe420ddf83d113928c8 Mon Sep 17 00:00:00 2001
From: Miaohe Lin
Date: Wed, 30 Jun 2021 18:52:49 -0700
Subject: mm/zswap.c: remove unused function zswap_debugfs_exit()

Patch series "Cleanup and fixup for zswap".

This series contains cleanups to remove unused function and avoid
unnecessary copy-in at map time.  Also this fixes two bugs in the function
zswap_writeback_entry().  More details can be found in the respective
changelogs.

This patch (of 3):

zswap_debugfs_exit() is unused, remove it.

Link: https://lkml.kernel.org/r/20210522092242.3233191-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210522092242.3233191-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/zswap.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 20763267a219..e93459319fdb 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1427,18 +1427,11 @@ static int __init zswap_debugfs_init(void)
 
 	return 0;
 }
-
-static void __exit zswap_debugfs_exit(void)
-{
-	debugfs_remove_recursive(zswap_debugfs_root);
-}
 #else
 static int __init zswap_debugfs_init(void)
 {
 	return 0;
 }
-
-static void __exit zswap_debugfs_exit(void) { }
 #endif
 
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