The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 705757274599e2e064dd3054aabc74e8af31a095 Mon Sep 17 00:00:00 2001 From: Baokun Li libaokun1@huawei.com Date: Tue, 15 Feb 2022 12:07:36 +0800 Subject: [PATCH] ubifs: rename_whiteout: correct old_dir size computing
When renaming the whiteout file, the old whiteout file is not deleted. Therefore, we add the old dentry size to the old dir like XFS. Otherwise, an error may be reported due to `fscki->calc_sz != fscki->size` in check_indes.
Fixes: 9e0a1fff8db56ea ("ubifs: Implement RENAME_WHITEOUT") Reported-by: Zhihao Cheng chengzhihao1@huawei.com Signed-off-by: Baokun Li libaokun1@huawei.com Signed-off-by: Richard Weinberger richard@nod.at
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index ae082a0be2a3..86151889548e 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -1402,6 +1402,9 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry, iput(whiteout); goto out_release; } + + /* Add the old_dentry size to the old_dir size. */ + old_sz -= CALC_DENT_SIZE(fname_len(&old_nm)); }
lock_4_inodes(old_dir, new_dir, new_inode, whiteout);