[LU-14696] read-only client mounts shouldn't allow quota changes

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.8, Lustre 2.15.0
• Labels: LTS12
• Severity: 3
• Assignee: Hongchao Zhang
• Reporter: Hongchao Zhang

Description

Currently, read-only Lustre mount does not prevent quota changes from being made to it.

# lfs quota -g abc123 .
Disk quotas for grp abc123 (gid 6901):
 Filesystem kbytes quota limit grace files quota limit grace
 . 43634815148 177167400960 186025771008 - 106943 14641000 15373050 -
# touch afile
touch: cannot touch 'afile': Read-only file system
# lfs setquota -g abc123 -I 15373999 .
# lfs quota -g abc123 .
Disk quotas for grp abc123 (gid 6901):
 Filesystem kbytes quota limit grace files quota limit grace
 . 43634815148 177167400960 186025771008 - 106943 14641000 15373999 -
#