[PATCH 2/4] libquota: fix quota_inode_truncate()

[Aditya Kali <adityakali@google.com>]

We failed to clear EXT2_FLAG_SUPER_ONLY after deleting the
quota inode and so, the updated block bitmap was not written
back. This caused fsck to complain after running
'tune2fs -O ^quota <dev>'. Clear this flag so that updated
block bitmap gets written. Also, avoid truncating the quota
inode if it is not hidden.

Signed-off-by: Aditya Kali <adityakali@google.com>
---
 lib/quota/quotaio.c |   20 ++++++++++++--------
 1 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/lib/quota/quotaio.c b/lib/quota/quotaio.c
index c0ebaa1..7cdd653 100644
--- a/lib/quota/quotaio.c
+++ b/lib/quota/quotaio.c
@@ -133,14 +133,18 @@ errcode_t quota_inode_truncate(ext2_filsys fs, ext2_ino_t ino)
 	if ((err = ext2fs_read_inode(fs, ino, &inode)))
 		return err;
 
-	inode.i_dtime = fs->now ? fs->now : time(0);
-	if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
-		return 0;
-
-	ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
-			      release_blocks_proc, NULL);