[PATCH 2/3] lockmeter: lockmeter fix for generic_read_trylock

[Ray Bryant <raybry@sgi.com>]

Update lockmeter.c with generic_raw_read_trylock fix.

Signed-off-by: Ray Bryant <raybry@sgi.com>

Index: linux-2.6.9-rc2-mm1/kernel/lockmeter.c
===================================================================
--- linux-2.6.9-rc2-mm1.orig/kernel/lockmeter.c	2004-09-16 12:03:20.000000000 -0700
+++ linux-2.6.9-rc2-mm1/kernel/lockmeter.c	2004-09-16 12:29:08.000000000 -0700
@@ -1213,6 +1213,18 @@
  * except for the fact tht calls to _raw_ routines are replaced by
  * corresponding calls to the _metered_ routines
  */
+
+/*
+ * Generic declaration of the raw read_trylock() function,
+ * architectures are supposed to optimize this:
+ */
+int __lockfunc generic_raw_read_trylock(rwlock_t *lock)
+{
+	_metered_read_lock(lock, __builtin_return_address(0));
+	return 1;
+}
+EXPORT_SYMBOL(generic_raw_read_trylock);
+
 int __lockfunc _spin_trylock(spinlock_t *lock)
 {
 	preempt_disable();

-- 
Best Regards,
Ray
-----------------------------------------------
Ray Bryant                       raybry@sgi.com
The box said: "Requires Windows 98 or better",
           so I installed Linux.
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