[PATCH RESEND] f2fs: fix to restrict mount condition when without CONFIG_QUOTA

From: Chao Yu
Date: Wed Jul 25 2018 - 19:20:22 EST


From: Chao Yu <yuchao0@xxxxxxxxxx>

Like quota_ino feature, we need to reject mounting RDWR with image
which enables project_quota feature when there is no CONFIG_QUOTA
be set in kernel.

Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
---
fs/f2fs/super.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index dbc1cb53581f..bc7c14a055bb 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -775,6 +775,12 @@ static int parse_options(struct super_block *sb, char *options)
"without CONFIG_QUOTA");
return -EINVAL;
}
+ if (f2fs_sb_has_project_quota(sbi->sb) && !f2fs_readonly(sbi->sb)) {
+ f2fs_msg(sb, KERN_ERR,
+ "Filesystem with project quota feature cannot be "
+ "mounted RDWR without CONFIG_QUOTA");
+ return -EINVAL;
+ }
#endif

if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) {
--
2.16.2.17.g38e79b1fd