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From: Chao Yu <chao@kernel.org>
To: jaegeuk@kernel.org
Cc: Pavel Machek <pavel@denx.de>,
	linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH] f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
Date: Wed, 22 Sep 2021 23:27:05 +0800	[thread overview]
Message-ID: <20210922152705.720071-1-chao@kernel.org> (raw)

As Pavel Machek reported in [1]

This code looks quite confused: part of function returns 1 on
corruption, part returns -errno. The problem is not stable-specific.

[1] https://lkml.org/lkml/2021/9/19/207

Let's fix to make 'insane cp_payload case' to return 1 rater than
EFSCORRUPTED, so that return value can be kept consistent for all
error cases, it can avoid confusion of code logic.

Fixes: 65ddf6564843 ("f2fs: fix to do sanity check for sb/cp fields correctly")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Chao Yu <chao@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8d6d0657a470..e3975cb8e3e8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3487,7 +3487,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
 		NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
 		f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
 			  cp_payload, nat_bits_blocks);
-		return -EFSCORRUPTED;
+		return 1;
 	}
 
 	if (unlikely(f2fs_cp_error(sbi))) {
-- 
2.32.0



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WARNING: multiple messages have this Message-ID (diff)
From: Chao Yu <chao@kernel.org>
To: jaegeuk@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, Chao Yu <chao@kernel.org>,
	Pavel Machek <pavel@denx.de>
Subject: [PATCH] f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
Date: Wed, 22 Sep 2021 23:27:05 +0800	[thread overview]
Message-ID: <20210922152705.720071-1-chao@kernel.org> (raw)

As Pavel Machek reported in [1]

This code looks quite confused: part of function returns 1 on
corruption, part returns -errno. The problem is not stable-specific.

[1] https://lkml.org/lkml/2021/9/19/207

Let's fix to make 'insane cp_payload case' to return 1 rater than
EFSCORRUPTED, so that return value can be kept consistent for all
error cases, it can avoid confusion of code logic.

Fixes: 65ddf6564843 ("f2fs: fix to do sanity check for sb/cp fields correctly")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Chao Yu <chao@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8d6d0657a470..e3975cb8e3e8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3487,7 +3487,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
 		NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
 		f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
 			  cp_payload, nat_bits_blocks);
-		return -EFSCORRUPTED;
+		return 1;
 	}
 
 	if (unlikely(f2fs_cp_error(sbi))) {
-- 
2.32.0


             reply	other threads:[~2021-09-22 15:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22 15:27 Chao Yu [this message]
2021-09-22 15:27 ` [PATCH] f2fs: fix incorrect return value in f2fs_sanity_check_ckpt() Chao Yu
2021-09-24  9:50 ` Pavel Machek
2021-10-27  2:19   ` [f2fs-dev] " Chao Yu
2021-10-27  2:19     ` Chao Yu
2021-10-27 22:34     ` [f2fs-dev] " Jaegeuk Kim
2021-10-27 22:34       ` Jaegeuk Kim

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