[LU-13101] Eviction during ll_open_cleanup()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0, Lustre 2.12.5
• Labels: patch
• Severity: 3
• Assignee: Andriy Skulysh
• Reporter: Andriy Skulysh

Description

On error ll_open_cleanup()  is called while intent lock remains pinned.
So eviction can happen while close request waits for a mod rpc slot.

Stack : 
__schedule
schedule
obd_get_mod_rpc_slot
ptlrpc_get_mod_rpc_slot
mdc_close
lmv_close
ll_open_cleanup
ll_prep_inode
ll_lookup_it
ll_atomic_open
do_last
path_openat
do_filp_open
do_sys_open
sys_open
system_call_fastpath
Progs: 13284 "file_concat.sh"