[src/trunk]: src/lib/libperfuse perfuse memory usage can grow quite large whe...

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

details:   https://anonhg.NetBSD.org/src/rev/b44b62a2e1f8
branches:  trunk
changeset: 770560:b44b62a2e1f8
user:      manu <manu%NetBSD.org@localhost>
date:      Sun Oct 23 05:01:00 2011 +0000

description:
perfuse memory usage can grow quite large when using a lot of vnodes,
and the amount of data memory involved is not easy to forcast. We therefore
raise the limit to the maximum.

Patch from Manuel Bouyer. It helps completing a cvs update on a glusterfs
colume.

diffstat:

 lib/libperfuse/perfuse.c |  19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)

diffs (40 lines):

diff -r 16ebcef8b44a -r b44b62a2e1f8 lib/libperfuse/perfuse.c
--- a/lib/libperfuse/perfuse.c  Sat Oct 22 22:23:50 2011 +0000
+++ b/lib/libperfuse/perfuse.c  Sun Oct 23 05:01:00 2011 +0000
@@ -1,4 +1,4 @@
-/*  $NetBSD: perfuse.c,v 1.21 2011/10/18 15:47:32 manu Exp $ */
+/*  $NetBSD: perfuse.c,v 1.22 2011/10/23 05:01:00 manu Exp $ */
 
 /*-
  *  Copyright (c) 2010-2011 Emmanuel Dreyfus. All rights reserved.
@@ -34,6 +34,7 @@
 #include <puffs.h>
 #include <sys/types.h>
 #include <sys/mman.h>
+#include <sys/resource.h>
 #include <sys/socket.h>
 #include <sys/extattr.h>
 #include <sys/un.h>
@@ -399,6 +400,22 @@
        unsigned int puffs_flags;
        struct puffs_node *pn_root;
        struct puffs_pathobj *po_root;
+       struct rlimit rl;
+
+       /*
+        * perfused can grow quite large, let assume there's enough ram ...
+        */
+       if (getrlimit(RLIMIT_DATA, &rl) < 0) {
+               DERR(EX_OSERR, "%s: getrlimit failed: %s", __func__,
+                   strerror(errno));
+       } else {
+               rl.rlim_cur = rl.rlim_max;
+               if (setrlimit(RLIMIT_DATA, &rl) < 0) {
+                       DERR(EX_OSERR, "%s: setrlimit failed: %s", __func__,
+                           strerror(errno));
+               }
+       }
+               
 
        ps = init_state();
        ps->ps_owner_uid = pmi->pmi_uid;