Miscellaneous scripts and libcg bug fixes

Turn off -DDEBUG in Makefile


Signed-off-by: Sudhir Kumar <skumar@linux.vnet.ibm.com>
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>



git-svn-id: https://libcg.svn.sourceforge.net/svnroot/libcg/branches/balbir@18 4f4bb910-9a46-0410-90c8-c897d4f1cd53

3 files changed, 20 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 9c175fa..40737d3 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@
 YACC_DEBUG=-t
 DEBUG=-DDEBUG
 INC=-I.
-CFLAGS=-g -O2 -Wextra $(DEBUG)  $(INC) 
+CFLAGS=-g -O2 -Wextra $(INC) 
 LIBS= -lcg
 LDFLAGS= -L .
 INSTALLPREFIX=
diff --git a/api.c b/api.c
index c2d6ef9..b7a224f 100644
--- a/api.c
+++ b/api.c
@@ -106,6 +106,9 @@ int cg_init()
 	int ret = 0;
 
 	proc_mount = fopen("/proc/mounts", "r");
+	if (proc_mount == NULL) {
+		return EIO;
+	}
 
 	while ((ent = getmntent(proc_mount)) != NULL) {
 		if (!strncmp(ent->mnt_fsname,"cgroup", strlen("cgroup"))) {
@@ -406,14 +409,14 @@ int cg_delete_cgroup(struct cgroup *cgroup, int ignore_migration)
 	int error = ECGROUPNOTALLOWED;
 
 	strcpy(path, MOUNT_POINT);
-	strcat(path,"/tasks");
+	strcat(path,"tasks");
 
 	base_tasks = fopen(path, "w");
 	if (!base_tasks)
 		goto base_open_err;
 
 	cg_build_path(cgroup->name, path);
-	strcat(path,"/tasks");
+	strcat(path,"tasks");
 
 	delete_tasks = fopen(path, "r");
 	if (!delete_tasks)
diff --git a/scripts/doc/howto.txt b/scripts/doc/howto.txt
index 38c95e3..c6796d6 100644
--- a/scripts/doc/howto.txt
+++ b/scripts/doc/howto.txt
@@ -35,6 +35,20 @@ class2  cpu.shares=512
 The configuration below creates two classes class1 and class2 and
 assigns shares of 1024 to class1 and 512 to class1.
 
+The other options that can be specified are
+
+tuid = owner of the tasks file
+tgid = group permissions of the tasks file
+cuid = owner of the newly created node
+cgid = group permissions of the newly created node
+
+Example
+
+class1 cpu.shares = 1024 tuid=root tgid=root cuid=database cgid=database.
+
+By default all these files are owned by root. The flexibilty of specifying
+owners makes it easier for other applications to use resource management.
+
 Intialization script
 --------------------