[LU-8801] ldiskfs quota accounting iterator is flawed

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.0
• Severity: 3
• Assignee: Niu Yawei (Inactive)
• Reporter: Niu Yawei (Inactive)

Description

The ldiskfs quota accounting iterator is flawed, that'll result in some accounting entries being missed in the output of proc files (acct_user & acct_group).

This can be reproduced by:

• Create a fresh filesystem;
• Run the following script to generate large amount of accounting entries:

  #!/bin/bash
  for i in `seq 10000`; do
          touch /mnt/lustre/file_$i
          chown $i:$i /mnt/lustre/file_$i
  done
  

• Verify proc file by: cat /proc/fs/lustre/osd-ldiskfs/lustre-MDT0000/quota_slave/acct_user; Some entries are missed in the output.