[PATCH AUTOSEL 5.15 1/9] f2fs: remove clear SB_INLINECRYPT flag in default_options

[Sasha Levin]

From: Yunlei He <heyunlei@xxxxxxxx>

[ 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@xxxxxxxx>
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/f2fs/super.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index df1e5496352c2..706d7adda3b22 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2068,8 +2068,6 @@ 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);
-- 
2.43.0