vdso

kernel/core/namespace.c

@@ -2,6 +2,7 @@
 #include <zinnia/rights.h>
 #include <zinnia/status.h>
 #include <kernel/alloc.h>
+#include <kernel/mutex.h>
 #include <kernel/namespace.h>
 #include <stdatomic.h>
 
@@ -26,6 +27,7 @@ zn_status_t namespace_add_desc(struct namespace* namespace, struct namespace_des
         return ZN_ERR_INTERNAL;
 
     // Skip over handles that are already in use (e.g. hard-coded handles).
+    // mutex_lock(&namespace->mutex);
     zn_handle_t handle;
     do {
         handle = atomic_fetch_add_explicit(&namespace->next_handle, 1, memory_order_acq_rel);
@@ -35,6 +37,8 @@ zn_status_t namespace_add_desc(struct namespace* namespace, struct namespace_des
 
     zn_status_t status =
         hashmap_insert(&namespace->descriptors, handle, desc, hashmap_hash_default, hashmap_eq_default);
+    // mutex_unlock(&namespace->mutex);
+
     if (status != ZN_OK)
         return status;
 
@@ -45,6 +49,8 @@ zn_status_t namespace_add_desc(struct namespace* namespace, struct namespace_des
 zn_status_t namespace_add_desc_at(struct namespace* namespace, struct namespace_desc desc, zn_handle_t handle) {
     if (!namespace)
         return ZN_ERR_INTERNAL;
+
+    // Skip Invalid or reserved handles.
     if (handle <= ZN_HANDLE_INVALID)
         return ZN_ERR_BAD_HANDLE;