Bug 216490

Summary:	ubifs: bad space budget for symlink after encryption
Product:	File System	Reporter:	Zhihao Cheng (chengzhihao1)
Component:	Other	Assignee:	fs_other
Status:	NEW ---
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	6.0.0-rc4	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	diff setup.sh

Description Zhihao Cheng 2022-09-15 06:41:08 UTC

CONFIG_FS_ENCRYPTION=y
CONFIG_UBIFS_FS=m
CONFIG_MTD_UBI=m
CONFIG_MTD_NAND_NANDSIM=m

1. Apply diff and compile kernel
2. ./setup.sh 1 e
3. dmesg
[12035.118788] <2809> budget: len 260 len_encrypted 290
[12035.119500] <2809> budget: data_growth(new inode + new dent + new ino_data) 736
[12035.120891] <2809> disk: newdent 312 newinode+ino_data 456

budget 736 < disk 768(312 + 456)

Comment 1 Zhihao Cheng 2022-09-15 06:41:39 UTC

Created attachment 301811 [details]
diff

Comment 2 Zhihao Cheng 2022-09-15 06:41:49 UTC

Created attachment 301812 [details]
setup.sh