diff options
| author | Dhaval Giani <dhaval@linux.vnet.ibm.com> | 2008-07-29 06:42:13 +0000 |
|---|---|---|
| committer | Dhaval Giani <dhaval@linux.vnet.ibm.com> | 2008-07-29 06:42:13 +0000 |
| commit | ab88711608176137b58557925c36a2c309c96dd5 (patch) | |
| tree | 6a1ef87fcde3a05486f42830581ce70c2a359a09 /api.c | |
| parent | 01ec61cea57eaf6c20cce540efc3fed08c416c07 (diff) | |
| download | libcg-ab88711608176137b58557925c36a2c309c96dd5.tar.gz libcg-ab88711608176137b58557925c36a2c309c96dd5.tar.xz libcg-ab88711608176137b58557925c36a2c309c96dd5.zip | |
libcgroup: Add more debug statements
From: Vivek Goyal <vgoyal@redhat.com>
o Add some more debug statements
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
git-svn-id: https://libcg.svn.sourceforge.net/svnroot/libcg/trunk@115 4f4bb910-9a46-0410-90c8-c897d4f1cd53
Diffstat (limited to 'api.c')
| -rw-r--r-- | api.c | 18 |
1 files changed, 14 insertions, 4 deletions
@@ -306,9 +306,10 @@ int cgroup_attach_task_pid(struct cgroup *cgroup, pid_t tid) FILE *tasks; int i; - if (!cgroup_initialized) + if (!cgroup_initialized) { + dbg ("libcgroup is not initialized\n"); return ECGROUPNOTINITIALIZED; - + } if(!cgroup) { pthread_rwlock_rdlock(&cg_mount_table_lock); @@ -335,8 +336,11 @@ int cgroup_attach_task_pid(struct cgroup *cgroup, pid_t tid) pthread_rwlock_unlock(&cg_mount_table_lock); } else { for (i = 0; i < cgroup->index; i++) { - if (!cgroup_test_subsys_mounted(cgroup->controller[i]->name)) + if (!cgroup_test_subsys_mounted(cgroup->controller[i]->name)) { + dbg("subsystem %s is not mounted\n", + cgroup->controller[i]->name); return ECGROUPSUBSYSNOTMOUNTED; + } } for (i = 0; i < cgroup->index; i++) { if (!cg_build_path(cgroup->name, path, @@ -347,6 +351,9 @@ int cgroup_attach_task_pid(struct cgroup *cgroup, pid_t tid) tasks = fopen(path, "w"); if (!tasks) { + dbg("fopen failed for %s:%s", path, + strerror(errno)); + switch (errno) { case EPERM: return ECGROUPNOTOWNER; @@ -469,8 +476,11 @@ int cgroup_modify_cgroup(struct cgroup *cgroup) return ECGROUPNOTALLOWED; for (i = 0; i < cgroup->index; i++) { - if (!cgroup_test_subsys_mounted(cgroup->controller[i]->name)) + if (!cgroup_test_subsys_mounted(cgroup->controller[i]->name)) { + dbg("subsystem %s is not mounted\n", + cgroup->controller[i]->name); return ECGROUPSUBSYSNOTMOUNTED; + } } for (i = 0; i < cgroup->index; i++, strcpy(path, base)) { |