TaiJuWu commented on code in PR #10776:
URL: https://github.com/apache/nuttx/pull/10776#discussion_r1348747696


##########
sched/semaphore/spinlock.c:
##########
@@ -32,6 +32,11 @@
 #include <nuttx/sched_note.h>
 #include <arch/irq.h>
 
+#ifdef CONFIG_RW_SPINLOCK
+#  include <stdatomic.h>
+const static rwlock_t zero = SP_UNLOCKED;

Review Comment:
   write_lock need to check rw_lock is equal zero or not and decide  that can 
writer get this lock.



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