From 38a82c8d00638bb642bef787eb1d5e0e4d3b7d71 Mon Sep 17 00:00:00 2001
From: Yunlei He <heyunlei@oppo.com>
Date: Tue, 26 Mar 2024 14:10:43 +0800
Subject: [PATCH] f2fs: remove clear SB_INLINECRYPT flag in default_options
[ Upstream commit ac5eecf481c29942eb9a862e758c0c8b68090c33 ]
In f2fs_remount, SB_INLINECRYPT flag will be clear and re-set.
If create new file or open file during this gap, these files
will not use inlinecrypt. Worse case, it may lead to data
corruption if wrappedkey_v0 is enable.
Thread A: Thread B:
-f2fs_remount -f2fs_file_open or f2fs_new_inode
-default_options
<- clear SB_INLINECRYPT flag
-fscrypt_select_encryption_impl
-parse_options
<- set SB_INLINECRYPT again
Signed-off-by: Yunlei He <heyunlei@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/super.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 1281b59da6a2..9fed42e7bb1d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1745,8 +1745,6 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
- sbi->sb->s_flags &= ~SB_INLINECRYPT;
-
set_opt(sbi, INLINE_XATTR);
set_opt(sbi, INLINE_DATA);
set_opt(sbi, INLINE_DENTRY);