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From: Peter Zijlstra <peterz@infradead.org>
To: Huang Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [PATCH 6/5] llist: Add llist_next()
Date: Mon, 12 Sep 2011 16:05:48 +0200	[thread overview]
Message-ID: <1315836348.26517.41.camel@twins> (raw)
In-Reply-To: <1315461646-1379-1-git-send-email-ying.huang@intel.com>

Subject: llist: Add llist_next()
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon Sep 12 13:12:28 CEST 2011

So we don't have to expose the struct list_node members

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 include/linux/llist.h |    5 +++++
 kernel/irq_work.c     |    2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
Index: linux-2.6/include/linux/llist.h
===================================================================
--- linux-2.6.orig/include/linux/llist.h
+++ linux-2.6/include/linux/llist.h
@@ -144,6 +144,11 @@ static inline bool llist_empty(const str
 	return ACCESS_ONCE(head->first) == NULL;
 }
 
+static inline struct llist_node *llist_next(struct llist_node *node)
+{
+	return node->next;
+}
+
 /**
  * llist_add - add a new entry
  * @new:	new entry to be added
Index: linux-2.6/kernel/irq_work.c
===================================================================
--- linux-2.6.orig/kernel/irq_work.c
+++ linux-2.6/kernel/irq_work.c
@@ -110,7 +110,7 @@ void irq_work_run(void)
 	while (llnode != NULL) {
 		work = llist_entry(llnode, struct irq_work, llnode);
 
-		llnode = llnode->next;
+		llnode = llist_next(llnode);
 
 		/*
 		 * Clear the PENDING bit, after this point the @work


  parent reply	other threads:[~2011-09-12 14:06 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-08  6:00 [PATCH -mm -v2 0/5] irq_work, Use llist in irq_work Huang Ying
2011-09-08  6:00 ` [PATCH -mm -v2 1/5] llist, Make all llist functions inline Huang Ying
2011-09-08  6:00 ` [PATCH -mm -v2 2/5] llist, Define macro to check NMI safe cmpxchg Huang Ying
2011-09-08  6:00 ` [PATCH -mm -v2 3/5] llist, Move cpu_relax after cmpxchg Huang Ying
2011-09-08  6:00 ` [PATCH -mm -v2 4/5] llist, Return whether list is empty before adding in llist_add Huang Ying
2011-09-08  6:00 ` [PATCH -mm -v2 5/5] irq_work, Use llist in irq_work Huang Ying
2011-09-12 14:05 ` Peter Zijlstra [this message]
2011-09-12 14:05 ` [PATCH 7/5] sched: Convert to use llist Peter Zijlstra
2011-09-12 14:05 ` [PATCH 8/5] llist: Remove cpu_relax() usage in cmpxchg loops Peter Zijlstra
2011-09-12 14:23   ` Andi Kleen
2011-09-12 14:23     ` Peter Zijlstra
2011-09-12 14:47     ` Mathieu Desnoyers
2011-09-12 15:09       ` Peter Zijlstra
2011-09-12 15:24       ` Peter Zijlstra
2011-09-12 16:38       ` Andi Kleen
2011-09-12 18:53         ` Peter Zijlstra
2011-09-12 14:26   ` Avi Kivity
2011-09-12 14:32     ` Peter Zijlstra
2011-09-13 11:43       ` Avi Kivity
2011-09-13 14:22         ` Peter Zijlstra
2011-09-13 14:51           ` Avi Kivity
2011-09-13 14:53             ` Peter Zijlstra
2011-09-12 14:06 ` [PATCH -mm -v2 0/5] irq_work, Use llist in irq_work Peter Zijlstra

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