[LU-2781] sp_rm_entry not initialized properly

• Type: Technical task
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: LB
• Assignee: John Hammond
• Reporter: John Hammond

Description

Using 'lfs rm_emtry' may cause future (ordinary) unlinks to fail with -EPERM because sp_rm_entry is not being cleared from mdt_thread_info.mti_spec.

# MDSCOUNT=1 llmount.sh
# cd /mnt/lustre
# ls -a
.  ..  .lustre
# lfs rm_entry NXDIR
error on ioctl 0xc03066f0 for 'NXDIR' (3): No such file or directory
# touch f0
# rm f0
rm: cannot remove `f0': Operation not permitted