From: Arnaud Giersch <arnaud.giersch@iut-bm.univ-fcomte.fr>
Date: Tue, 21 Feb 2012 15:50:00 +0000 (+0100)
Subject: The semaphore doesn't need to be shared between processes.
X-Git-Tag: exp_20120308~34^2~16
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/b092bdee8a6d9f2d32efc51bb6ce3b836822a972?hp=d5d2d6e6c955f63b48a68ac598972e2afdbd591f

The semaphore doesn't need to be shared between processes.
---

diff --git a/src/xbt/mmalloc/mm_module.c b/src/xbt/mmalloc/mm_module.c
index 2ba57960fd..5cb60844a5 100644
--- a/src/xbt/mmalloc/mm_module.c
+++ b/src/xbt/mmalloc/mm_module.c
@@ -125,7 +125,7 @@ xbt_mheap_t xbt_mheap_new(int fd, void *baseaddr)
     	    mdp = (struct mdesc *) mtemp.base;
     	    mdp->fd = fd;
     	    if(!mdp->refcount){
-    	      sem_init(&mdp->sem, 1, 1);
+              sem_init(&mdp->sem, 0, 1);
     	      mdp->refcount++;
     	    }
     	  }
@@ -168,10 +168,8 @@ xbt_mheap_t xbt_mheap_new(int fd, void *baseaddr)
 
   if (mdp->fd < 0){
     mdp->flags |= MMALLOC_ANONYMOUS;
-    sem_init(&mdp->sem, 0, 1);
-  }else{
-    sem_init(&mdp->sem, 1, 1);
   }
+  sem_init(&mdp->sem, 0, 1);
   
   /* If we have not been passed a valid open file descriptor for the file
      to map to, then open /dev/zero and use that to map to. */