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Message-Id: <1368493184-5939-6-git-send-email-zwu.kernel@gmail.com>
Date: Tue, 14 May 2013 08:59:37 +0800
From: zwu.kernel@...il.com
To: viro@...iv.linux.org.uk
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-btrfs@...r.kernel.org, sekharan@...ibm.com,
linuxram@...ibm.com, david@...morbit.com, dsterba@...e.cz,
gregkh@...uxfoundation.org, paulmck@...ux.vnet.ibm.com,
chris.mason@...ionio.com, Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: [PATCH v2 05/12] VFS hot tracking, rcu: introduce one rcu macro for list
From: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
This rcu macro for list will be used in seq_list
rcu interfaces.
Signed-off-by: Chandra Seetharaman <sekharan@...ibm.com>
Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
---
include/linux/rculist.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 8089e35..a3fa055 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -218,6 +218,11 @@ static inline void list_splice_init_rcu(struct list_head *list,
at->prev = last;
}
+#define __list_for_each_rcu(pos, head) \
+ for (pos = rcu_dereference(list_next_rcu(head)); \
+ pos != head; \
+ pos = rcu_dereference(list_next_rcu(pos)))
+
/**
* list_entry_rcu - get the struct for this entry
* @ptr: the &struct list_head pointer.
--
1.7.11.7
--
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