#include <linux/seq_file.h>
#include <sys/kstat.h>
#include <sys/vmem.h>
+#include <sys/cmn_err.h>
#ifndef HAVE_PDE_DATA
#define PDE_DATA(x) (PDE(x)->data)
}
EXPORT_SYMBOL(__kstat_create);
+static int
+kstat_detect_collision(kstat_t *ksp)
+{
+ kstat_module_t *module;
+ kstat_t *tmp;
+ char parent[KSTAT_STRLEN+1];
+ char *cp;
+
+ (void) strlcpy(parent, ksp->ks_module, sizeof(parent));
+
+ if ((cp = strrchr(parent, '/')) == NULL)
+ return (0);
+
+ cp[0] = '\0';
+ if ((module = kstat_find_module(parent)) != NULL) {
+ list_for_each_entry(tmp, &module->ksm_kstat_list, ks_list)
+ if (strncmp(tmp->ks_name, cp+1, KSTAT_STRLEN) == 0)
+ return (EEXIST);
+ }
+
+ return (0);
+}
+
void
__kstat_install(kstat_t *ksp)
{
module = kstat_find_module(ksp->ks_module);
if (module == NULL) {
+ if (kstat_detect_collision(ksp) != 0) {
+ cmn_err(CE_WARN, "kstat_create('%s', '%s'): namespace" \
+ " collision", ksp->ks_module, ksp->ks_name);
+ goto out;
+ }
module = kstat_create_module(ksp->ks_module);
if (module == NULL)
goto out;