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SubjectRe: [PATCH] 2.5.39-mm1 fixes 2/3
The read_barrier_depends patch didn't have compilable list_for_each_rcu()
macros. These macros allow a simpler interface to use RCU by taking
care of memory barriers. Fix against 2.5.39-mm1.

Thanks
--
Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.


--- include/linux/list.h.orig Mon Sep 30 13:59:10 2002
+++ include/linux/list.h Mon Sep 30 13:59:23 2002
@@ -307,7 +307,7 @@
*/
#define list_for_each_rcu(pos, head) \
for (pos = (head)->next, prefetch(pos->next); pos != (head); \
- pos = pos->next, ({ read_barrier_depends(); 0}), prefetch(pos->next))
+ pos = pos->next, ({ read_barrier_depends(); 0;}), prefetch(pos->next))

/**
* list_for_each_safe_rcu - iterate over an rcu-protected list safe
@@ -318,7 +318,7 @@
*/
#define list_for_each_safe_rcu(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
- pos = n, ({ read_barrier_depends(); 0}), n = pos->next)
+ pos = n, ({ read_barrier_depends(); 0;}), n = pos->next)

#endif /* __KERNEL__ || _LVM_H_INCLUDE */

-
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