Expand SEM() outside init_rwsem and directly call __init_rwsem().

We need to directly call __init_rwsem() or the name gets expanded to SEM(lock-name). This is safe and correct for the support arches x86/x86_64/ppc/ppc64.
2009-09-29 03:19:09 -07:00 · 2009-09-29 03:19:09 -07:00 · 0e77fc118e
parent 4d54fdee1d
commit 0e77fc118e
1 changed files with 3 additions and 1 deletions
--- a/include/sys/rwlock.h
+++ b/include/sys/rwlock.h
@ -154,7 +154,9 @@ RW_LOCK_HELD(krwlock_t *rwp)
 */
 #define rw_init(rwp, name, type, arg)                                   \
 ({                                                                      \
-        init_rwsem(SEM(rwp));                                           \
+        static struct lock_class_key __key;                             \
+                                                                        \
+        __init_rwsem(SEM(rwp), #rwp, &__key);                           \
        spl_rw_clear_owner(rwp);                                        \
 })