[src/trunk]: src/lib/libp2k If P2K_DEBUG is given, also dump rump kernel even...

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

details:   https://anonhg.NetBSD.org/src/rev/061b07cb7e74
branches:  trunk
changeset: 754481:061b07cb7e74
user:      pooka <pooka%NetBSD.org@localhost>
date:      Sat May 01 14:44:48 2010 +0000

description:
If P2K_DEBUG is given, also dump rump kernel event counters when
file system is unmounted.

diffstat:

 lib/libp2k/p2k.c |  12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diffs (54 lines):

diff -r c0147737ceae -r 061b07cb7e74 lib/libp2k/p2k.c
--- a/lib/libp2k/p2k.c  Sat May 01 14:40:36 2010 +0000
+++ b/lib/libp2k/p2k.c  Sat May 01 14:44:48 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: p2k.c,v 1.35 2010/04/29 22:34:21 pooka Exp $   */
+/*     $NetBSD: p2k.c,v 1.36 2010/05/01 14:44:48 pooka Exp $   */
 
 /*
  * Copyright (c) 2007, 2008, 2009  Antti Kantee.  All Rights Reserved.
@@ -79,6 +79,7 @@
        struct mount *p2m_mp;
        int p2m_nvnodes;
        int p2m_imtmpfsman;
+       bool p2m_hasdebug;
 };
 
 struct p2k_node {
@@ -273,6 +274,7 @@
        struct p2k_mount *p2m;
        char *envbuf;
        bool dodaemon;
+       bool hasdebug;
 
        PUFFSOP_INIT(pops);
 
@@ -315,6 +317,7 @@
        if (getenv("P2K_DEBUG") != NULL) {
                puffs_flags |= PUFFS_FLAG_OPDUMP;
                dodaemon = false;
+               hasdebug = true;
        }
        if (getenv("P2K_NODETACH") != NULL) {
                dodaemon = false;
@@ -346,6 +349,7 @@
                errno = sverrno;
                return NULL;
        }
+       p2m->p2m_hasdebug = hasdebug;
 
        if (dodaemon) {
                if (puffs_daemon(p2m->p2m_pu, 1, 1) == -1) {
@@ -567,6 +571,12 @@
        }
        p2m->p2m_ukfs = NULL;
 
+       if (p2m->p2m_hasdebug) {
+               printf("-- rump kernel event counters --\n");
+               rump_printevcnts();
+               printf("-- end of event counters --\n");
+       }
+
        rump_pub_lwp_alloc_and_switch(0, 0);
        return error;
 }