Re: [PATCH 2/3] lockmeter: lockmeter fix for generic_read_trylock
From: Ray Bryant
Date: Thu Sep 16 2004 - 18:46:49 EST
Zwane Mwaikambo wrote:
On Thu, 16 Sep 2004, Ray Bryant wrote:
Update lockmeter.c with generic_raw_read_trylock fix.
+ * 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;
+}
What's really going on here? I'm slightly confused by the
_metered_read_lock usage.
Thanks,
Zwane
Yeah, I think overly patterned matched on this one. I just
grabbed the code from spinlock.c and do what I normally do to
make it lockmetered, but in this case since its a _raw_ routine, I
should have left it alone. It just needs to be duplicated in
lockmeter.c, not lockmeter'd.
So that middle line there should be:
_raw_read_lock(lock);
instead. I'll get this straightend out with Andrew shortly.
--
Best Regards,
Ray
-----------------------------------------------
Ray Bryant
512-453-9679 (work) 512-507-7807 (cell)
raybry@xxxxxxx raybry@xxxxxxxxxxxxx
The box said: "Requires Windows 98 or better",
so I installed Linux.
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