[LU-7927] Deadlock between ll_setattr() and ll_file_write()->ll_fsync()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.9.0
• Labels: patch
• Severity: 3
• Assignee: WC Triage
• Reporter: Andriy Skulysh

Description

commit 85bd36cc69563d7a79e3ed34f8fadb4ed1a72b7c
Author: Henri Doreau <[e-mail]>
Date:   Fri Apr 18 16:17:01 2014 +0200

    LU-4840 lfs: Use file lease to implement migration

moves lli_trunc_sem into vvp layer.
It violates lli_trunc_sem/i_mutex locking order.

So i_mutex sholud be taken after lli_trunc_sem now.