linux-kernel - [PATCH 5.14 089/432] f2fs: fix wrong checkpoint_changed value in f2fs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210916155813.799896659@linuxfoundation.org>
Date:   Thu, 16 Sep 2021 17:57:18 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chao Yu <chao@...nel.org>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.14 089/432] f2fs: fix wrong checkpoint_changed value in f2fs_remount()

From: Chao Yu <chao@...nel.org>

[ Upstream commit 277afbde6ca2b38729683fc17c031b4bc942068d ]

In f2fs_remount(), return value of test_opt() is an unsigned int type
variable, however when we compare it to a bool type variable, it cause
wrong result, fix it.

Fixes: 4354994f097d ("f2fs: checkpoint disabling")
Signed-off-by: Chao Yu <chao@...nel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/f2fs/super.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 7cdccb79b378..2b093a209ae4 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2071,11 +2071,10 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 	bool need_restart_ckpt = false, need_stop_ckpt = false;
 	bool need_restart_flush = false, need_stop_flush = false;
 	bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
-	bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
+	bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
 	bool no_io_align = !F2FS_IO_ALIGNED(sbi);
 	bool no_atgc = !test_opt(sbi, ATGC);
 	bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
-	bool checkpoint_changed;
 #ifdef CONFIG_QUOTA
 	int i, j;
 #endif
@@ -2120,8 +2119,6 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 	err = parse_options(sb, data, true);
 	if (err)
 		goto restore_opts;
-	checkpoint_changed =
-			disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT);
 
 	/*
 	 * Previous and new state of filesystem is RO,
@@ -2243,7 +2240,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 		need_stop_flush = true;
 	}
 
-	if (checkpoint_changed) {
+	if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
 		if (test_opt(sbi, DISABLE_CHECKPOINT)) {
 			err = f2fs_disable_checkpoint(sbi);
 			if (err)
-- 
2.30.2