jlaitine commented on code in PR #8026:
URL: https://github.com/apache/nuttx/pull/8026#discussion_r1063394016
##########
include/nuttx/mm/map.h:
##########
@@ -73,11 +73,156 @@ struct mm_map_entry_s
struct mm_map_s
{
sq_queue_t mm_map_sq;
- mutex_t mm_map_mutex;
+ rmutex_t mm_map_mutex;
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
-#endif /* __INCLUDE_NUTTX_MM_MM_MAP_H */
+/****************************************************************************
+ * Name: mm_map_lock
+ *
+ * Description:
+ * Get exclusive access to task_group's mm_map
+ *
+ * Input Parameters:
+ * mm - Pointer to the mm_map_s
+ *
+ * Returned Value:
+ * OK on success
+ * A negated errno value on failure
+ *
+ ****************************************************************************/
+
+int mm_map_lock(FAR struct task_group_s *group);
Review Comment:
I find it more logical to lock mappings of a group(process), than first
having to dig out the actual map from inside the group, in every place where
you do that...
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