From: Anton Blanchard <anton@samba.org>
To: Randy Dunlap <randy.dunlap@oracle.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: mmotm 2010-01-28-01-36 uploaded (sched.c + percpu)
Date: Fri, 29 Jan 2010 10:41:25 +1100 [thread overview]
Message-ID: <20100128234125.GH2996@kryten> (raw)
In-Reply-To: <4B61DD8F.6020507@oracle.com>
Hi Randy,
> when CONFIG_SMP is not enabled:
>
> kernel/sched.c:10915: error: 'percpu_counter_batch' undeclared (first use in this function)
Did 1/2 make it into mmotm?
Anton
---
[PATCH 1/2] percpu_counter: Make __percpu_counter_add an inline function on UP
Even though batch isn't used on UP, we may want to pass one in to keep the
SMP and UP code paths similar. Convert __percpu_counter_add to an inline
function so we wont get variable unused warnings if we do.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index a7684a5..794662b 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -98,9 +98,6 @@ static inline void percpu_counter_set(struct percpu_counter *fbc, s64 amount)
fbc->count = amount;
}
-#define __percpu_counter_add(fbc, amount, batch) \
- percpu_counter_add(fbc, amount)
-
static inline void
percpu_counter_add(struct percpu_counter *fbc, s64 amount)
{
@@ -109,6 +106,12 @@ percpu_counter_add(struct percpu_counter *fbc, s64 amount)
preempt_enable();
}
+static inline void
+__percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch)
+{
+ percpu_counter_add(fbc, amount);
+}
+
static inline s64 percpu_counter_read(struct percpu_counter *fbc)
{
return fbc->count;
next prev parent reply other threads:[~2010-01-28 23:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 9:36 mmotm 2010-01-28-01-36 uploaded akpm
2010-01-28 18:53 ` mmotm 2010-01-28-01-36 uploaded (media/radio/saa7706h.c) Randy Dunlap
2010-01-28 18:55 ` mmotm 2010-01-28-01-36 uploaded (sched.c + percpu) Randy Dunlap
2010-01-28 23:41 ` Anton Blanchard [this message]
2010-01-29 17:35 ` Randy Dunlap
2010-01-28 20:48 ` mmotm 2010-01-28-01-36 uploaded (elfcore/compat_binfmt_elf) Randy Dunlap
2010-01-29 1:47 ` Daisuke HATAYAMA
2010-01-29 8:11 ` Daisuke HATAYAMA
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