ubifs: Fix wrong dirty space budget for dirty inode

[ Upstream commit b248eaf049d9cdc5eb76b59399e4d3de233f02ac ]

Each dirty inode should reserve 'c->bi.inode_budget' bytes in space
budget calculation. Currently, space budget for dirty inode reports
more space than what UBIFS actually needs to write.

Fixes: 1e51764a3c2ac0 ("UBIFS: add new flash file system")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index e8b9b75..986e6e4 100644 (file)
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -400,7 +400,7 @@ static int calc_dd_growth(const struct ubifs_info *c,
        dd_growth = req->dirtied_page ? c->bi.page_budget : 0;
 
        if (req->dirtied_ino)
-               dd_growth += c->bi.inode_budget << (req->dirtied_ino - 1);
+               dd_growth += c->bi.inode_budget * req->dirtied_ino;
        if (req->mod_dent)
                dd_growth += c->bi.dent_budget;
        dd_growth += req->dirtied_ino_d;