[src/trunk]: src/share/man/man9 update to match with the recent reality. PR/...

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

details:   https://anonhg.NetBSD.org/src/rev/6dcccd7b2f11
branches:  trunk
changeset: 572272:6dcccd7b2f11
user:      yamt <yamt%NetBSD.org@localhost>
date:      Tue Dec 28 18:36:45 2004 +0000

description:
update to match with the recent reality.  PR/28793.

diffstat:

 share/man/man9/namecache.9 |   7 ++++---
 share/man/man9/vnode.9     |  30 ++++++++++++++----------------
 2 files changed, 18 insertions(+), 19 deletions(-)

diffs (96 lines):

diff -r d021dffd9579 -r 6dcccd7b2f11 share/man/man9/namecache.9
--- a/share/man/man9/namecache.9        Tue Dec 28 17:56:40 2004 +0000
+++ b/share/man/man9/namecache.9        Tue Dec 28 18:36:45 2004 +0000
@@ -1,4 +1,4 @@
-.\"     $NetBSD: namecache.9,v 1.8 2003/04/16 13:35:31 wiz Exp $
+.\"     $NetBSD: namecache.9,v 1.9 2004/12/28 18:36:45 yamt Exp $
 .\"
 .\" Copyright (c) 2001 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -95,10 +95,11 @@
         LIST_ENTRY(namecache) nc_hash;  /* hash chain */
         TAILQ_ENTRY(namecache) nc_lru;  /* LRU chain */
         LIST_ENTRY(namecache) nc_vhash; /* directory hash chain */
+        LIST_ENTRY(namecache) nc_dvlist;
         struct  vnode *nc_dvp;          /* vnode of parent of name */
-        u_long  nc_dvpid;               /* capability number of nc_dvp */
+        LIST_ENTRY(namecache) nc_vlist;
         struct  vnode *nc_vp;           /* vnode the name refers to */
-        u_long  nc_vpid;                /* capability number of nc_vp */
+        int     nc_flags;               /* copy of componentname's ISWHITEOUT */
         char    nc_nlen;                /* length of name */
         char    nc_name[NCHNAMLEN];     /* segment name */
 };
diff -r d021dffd9579 -r 6dcccd7b2f11 share/man/man9/vnode.9
--- a/share/man/man9/vnode.9    Tue Dec 28 17:56:40 2004 +0000
+++ b/share/man/man9/vnode.9    Tue Dec 28 18:36:45 2004 +0000
@@ -1,4 +1,4 @@
-.\"     $NetBSD: vnode.9,v 1.22 2004/05/26 23:00:32 wiz Exp $
+.\"     $NetBSD: vnode.9,v 1.23 2004/12/28 18:36:45 yamt Exp $
 .\"
 .\" Copyright (c) 2001 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -157,8 +157,6 @@
         int             v_numoutput;            /* num pending writes */
         long            v_writecount;           /* ref count of writers */
         long            v_holdcnt;              /* page \*[Am] buffer refs */
-        daddr_t         v_lastr;                /* last read */
-        u_long          v_id;                   /* capability id */
         struct mount    *v_mount;               /* ptr to vfs we are in */
         int             (**v_op)(void *);       /* vnode ops vector */
         TAILQ_ENTRY(vnode) v_freelist;          /* vnode freelist */
@@ -166,6 +164,8 @@
         struct buflists v_cleanblkhd;           /* clean blocklist head */
         struct buflists v_dirtyblkhd;           /* dirty blocklist head */
         LIST_ENTRY(vnode) v_synclist;           /* dirty vnodes */
+        LIST_HEAD(, namecache) v_dnclist;       /* namecaches for children */
+        LIST_HEAD(, namecache) v_nclist;        /* namecaches for our parent */
         union {
                 struct mount    *vu_mountedhere;/* ptr to mounted vfs */
                 struct socket   *vu_socket;     /* unix ipc (VSOCK) */
@@ -182,6 +182,10 @@
         struct lock     v_lock;                 /* lock for this vnode */
         struct lock     *v_vnlock;              /* ptr to vnode lock */
         void            *v_data;                /* private data for fs */
+        struct klist    v_klist;                /* knotes attached to vnode */
+#ifdef VERIFIED_EXEC
+        char fp_status;                         /* fingerprint status */
+#endif
 };
 .Ed
 .Pp
@@ -305,18 +309,14 @@
 It does not track the number of dirty buffers attached to the
 vnode.
 .Pp
-Every time a vnode is reassigned to a new file, the vnode capability
-identifier
-.Em v_id
-is changed.
-It is used to maintain the name lookup cache consistency by providing
-a unique \*[Lt]vnode *,v_id\*[Gt] tuple without requiring the cache to
-hold a reference.
-The name lookup cache can later compare the vnode's capability identifier
-to its copy and see if the vnode still points to the same file.
-See
+.Em v_dnclist
+and
+.Em v_nclist
+are used by
 .Xr namecache 9
-for details on the name lookup cache.
+to maintain the list of associated entries so that
+.Xr cache_purge 9
+can purge them.
 .Pp
 The link to the file system which owns the vnode is recorded by
 .Em v_mount .
@@ -341,8 +341,6 @@
 .Em v_freelist .
 The vnodes still reference valid files but may be reused to refer to a
 new file at any time.
-Often, these vnodes are also held in caches in the system, such as
-the name lookup cache.
 When a valid vnode which is on the freelist is used again, the user
 must call
 .Fn vget