diff options
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index ccb16b47e293..fe3f7253aa90 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -120,10 +120,18 @@ static struct workqueue_struct *cgroup_destroy_wq; static struct workqueue_struct *cgroup_pidlist_destroy_wq; /* generate an array of cgroup subsystem pointers */ -#define SUBSYS(_x) [_x ## _subsys_id] = &_x ## _subsys, +#define SUBSYS(_x) [_x ## _cgrp_id] = &_x ## _cgrp_subsys, static struct cgroup_subsys *cgroup_subsys[] = { #include <linux/cgroup_subsys.h> }; +#undef SUBSYS + +/* array of cgroup subsystem names */ +#define SUBSYS(_x) [_x ## _cgrp_id] = #_x, +static const char *cgroup_subsys_name[] = { +#include <linux/cgroup_subsys.h> +}; +#undef SUBSYS /* * The dummy hierarchy, reserved for the subsystems that are otherwise @@ -1076,7 +1084,7 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts) BUG_ON(!mutex_is_locked(&cgroup_mutex)); #ifdef CONFIG_CPUSETS - mask = ~(1UL << cpuset_subsys_id); + mask = ~(1UL << cpuset_cgrp_id); #endif memset(opts, 0, sizeof(*opts)); @@ -4528,15 +4536,15 @@ int __init cgroup_init_early(void) list_add(&init_cgrp_cset_link.cgrp_link, &init_css_set.cgrp_links); for_each_subsys(ss, i) { - BUG_ON(!ss->name); - BUG_ON(strlen(ss->name) > MAX_CGROUP_TYPE_NAMELEN); - BUG_ON(!ss->css_alloc); - BUG_ON(!ss->css_free); - if (ss->subsys_id != i) { - printk(KERN_ERR "cgroup: Subsys %s id == %d\n", - ss->name, ss->subsys_id); - BUG(); - } + WARN(!ss->css_alloc || !ss->css_free || ss->name || ss->subsys_id, + "invalid cgroup_subsys %d:%s css_alloc=%p css_free=%p name:id=%d:%s\n", + i, cgroup_subsys_name[i], ss->css_alloc, ss->css_free, + ss->subsys_id, ss->name); + WARN(strlen(cgroup_subsys_name[i]) > MAX_CGROUP_TYPE_NAMELEN, + "cgroup_subsys_name %s too long\n", cgroup_subsys_name[i]); + + ss->subsys_id = i; + ss->name = cgroup_subsys_name[i]; if (ss->early_init) cgroup_init_subsys(ss); @@ -5167,11 +5175,9 @@ static struct cftype debug_files[] = { { } /* terminate */ }; -struct cgroup_subsys debug_subsys = { - .name = "debug", +struct cgroup_subsys debug_cgrp_subsys = { .css_alloc = debug_css_alloc, .css_free = debug_css_free, - .subsys_id = debug_subsys_id, .base_cftypes = debug_files, }; #endif /* CONFIG_CGROUP_DEBUG */ |