linux-kernel - [PATCH] f2fs: allow checkpoint=disable for zoned block device

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-next>] [day] [month] [year] [list]

Message-ID: <20231201230257.238513-1-jaegeuk@kernel.org>
Date:   Fri,  1 Dec 2023 15:02:56 -0800
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: allow checkpoint=disable for zoned block device

Let's allow checkpoint=disable back for zoned block device. It's very risky
as the feature relies on fsck or runtime recovery which matches the write
pointers again if the device rebooted while disabling the checkpoint.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/super.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 033af907c3b1..617340e9ea7f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1422,11 +1422,6 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 		}
 	}
 
-	if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
-		f2fs_err(sbi, "LFS is not compatible with checkpoint=disable");
-		return -EINVAL;
-	}
-
 	if (test_opt(sbi, ATGC) && f2fs_lfs_mode(sbi)) {
 		f2fs_err(sbi, "LFS is not compatible with ATGC");
 		return -EINVAL;
-- 
2.43.0.rc2.451.g8631bc7472-goog