This is a note to let you know that I've just added the patch titled
ubifs: Fix wrong dirty space budget for dirty inode
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ubifs-fix-wrong-dirty-space-budget-for-dirty-inode.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ecefe882a93d0f48ba0010de95f24ec916090616
Author: Zhihao Cheng <chengzhihao1@xxxxxxxxxx>
Date: Tue Oct 11 11:47:30 2022 +0800
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@xxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 11a11b32a2a90..e6b5d61a4e203 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -415,7 +415,7 @@ 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;
