[LU-11852] osc cache waiters wakeups and skipping queue

• Type: Improvement
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.13.0
• Labels: patch
• Assignee: Alexander Boyko
• Reporter: Alexander Boyko

Description

No need to wakeup osc_entry_cache waiters with EDQUOT or insufficent
grants, cause they will sleep again.
osc_enter_cache could skip queue of waiters if client has enough
grants, and this leads to new IO happen before an old IO.