---
- branch: MAIN
  date: Thu Apr 23 22:58:36 UTC 2020
  files:
  - new: '1.141'
    old: '1.140'
    path: src/sys/kern/vfs_cache.c
    pathrev: src/sys/kern/vfs_cache.c@1.141
    type: modified
  id: 20200423T225836Z.d1dfab7376c242c34b9981d9e3d5d678cd2182ea
  log: |
    cache_lookup_linked(): We can't use the name to decide how to lock the dir,
    since the name refers to the child (found object) not the parent (the thing
    that's being locked).

    Fix it by always doing rw_tryenter().  There's not much to be won by
    optimising for the contended case, and were this routine doing lockless
    lookups (the eventual goal) it wouldn't be hanging around waiting for
    changes either.
  module: src
  subject: 'CVS commit: src/sys/kern'
  unixtime: '1587682716'
  user: ad