[src/trunk]: src/sys/sys Update comments

[ad <ad%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2deba1c20a34
branches:  trunk
changeset: 746191:2deba1c20a34
user:      ad <ad%NetBSD.org@localhost>
date:      Mon Mar 23 23:28:11 2020 +0000

description:
Update comments

diffstat:

 sys/sys/namei.src |  11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)

diffs (30 lines):

diff -r d54c6551db3b -r 2deba1c20a34 sys/sys/namei.src
--- a/sys/sys/namei.src Mon Mar 23 22:29:23 2020 +0000
+++ b/sys/sys/namei.src Mon Mar 23 23:28:11 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: namei.src,v 1.51 2020/03/23 18:41:40 ad Exp $  */
+/*     $NetBSD: namei.src,v 1.52 2020/03/23 23:28:11 ad Exp $  */
 
 /*
  * Copyright (c) 1985, 1989, 1991, 1993
@@ -208,16 +208,15 @@
  * Field markings and their corresponding locks:
  *
  * -  stable throught the lifetime of the namecache entry
- * d  protected by nc_dvp->vi_ncdlock
- * v  protected by nc_dvp->vi_ncvlock
+ * d  protected by nc_dvp->vi_nc_lock
+ * v  protected by nc_vp->vi_nc_listlock
  * l  protected by cache_lru_lock
- * u  accesses are unlocked, no serialization applied
  */
 struct nchnode;
 struct namecache {
        struct  rb_node nc_tree;        /* d  red-black tree, must be first */
-       uint64_t nc_key;                /* -  hash key */
-       TAILQ_ENTRY(namecache) nc_list; /* v  vp's list of cache entries */
+       uint64_t nc_key;                /* -  hashed key value */
+       TAILQ_ENTRY(namecache) nc_list; /* v  nc_vp's list of cache entries */
        TAILQ_ENTRY(namecache) nc_lru;  /* l  pseudo-lru chain */
        struct  vnode *nc_dvp;          /* -  vnode of parent of name */
        struct  vnode *nc_vp;           /* -  vnode the name refers to */