*/
#define __is_kvfree_rcu_offset(offset) ((offset) < 4096)
-/*
- * Helper macro for kfree_rcu() to prevent argument-expansion eyestrain.
- */
-#define __kvfree_rcu(head, offset) \
- do { \
- BUILD_BUG_ON(!__is_kvfree_rcu_offset(offset)); \
- kvfree_call_rcu(head, (rcu_callback_t)(unsigned long)(offset)); \
- } while (0)
-
/**
* kfree_rcu() - kfree an object after a grace period.
* @ptr: pointer to kfree for both single- and double-argument invocations.
* Because the functions are not allowed in the low-order 4096 bytes of
* kernel virtual memory, offsets up to 4095 bytes can be accommodated.
* If the offset is larger than 4095 bytes, a compile-time error will
- * be generated in __kvfree_rcu(). If this error is triggered, you can
+ * be generated in kvfree_rcu_arg_2(). If this error is triggered, you can
* either fall back to use of call_rcu() or rearrange the structure to
* position the rcu_head structure into the first 4096 bytes.
*
do { \
typeof (ptr) ___p = (ptr); \
\
- if (___p) \
- __kvfree_rcu(&((___p)->rhf), offsetof(typeof(*(ptr)), rhf)); \
+ if (___p) { \
+ BUILD_BUG_ON(!__is_kvfree_rcu_offset(offsetof(typeof(*(ptr)), rhf))); \
+ kvfree_call_rcu(&((___p)->rhf), (rcu_callback_t)(unsigned long) \
+ (offsetof(typeof(*(ptr)), rhf))); \
+ } \
} while (0)
#define kvfree_rcu_arg_1(ptr) \