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authorPatrick McHardy <kaber@trash.net>2010-05-10 18:39:28 +0200
committerPatrick McHardy <kaber@trash.net>2010-05-10 18:39:28 +0200
commit1e4b1057121bc756b91758a434b504d2010f6088 (patch)
treeb016cf2c728289c7e36d9e4e488f30ab0bd0ae6e /include/linux/rculist.h
parent3b254c54ec46eb022cb26ee6ab37fae23f5f7d6a (diff)
parent3ee943728fff536edaf8f59faa58aaa1aa7366e3 (diff)
downloadop-kernel-dev-1e4b1057121bc756b91758a434b504d2010f6088.zip
op-kernel-dev-1e4b1057121bc756b91758a434b504d2010f6088.tar.gz
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/linux/rculist.h')
-rw-r--r--include/linux/rculist.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 004908b..4ec3b38 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -429,6 +429,23 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
pos = rcu_dereference_raw(pos->next))
/**
+ * hlist_for_each_entry_rcu_bh - iterate over rcu list of given type
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the hlist_node within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define hlist_for_each_entry_rcu_bh(tpos, pos, head, member) \
+ for (pos = rcu_dereference_bh((head)->first); \
+ pos && ({ prefetch(pos->next); 1; }) && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \
+ pos = rcu_dereference_bh(pos->next))
+
+/**
* hlist_for_each_entry_continue_rcu - iterate over a hlist continuing after current point
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct hlist_node to use as a loop cursor.
@@ -440,6 +457,18 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \
pos = rcu_dereference(pos->next))
+/**
+ * hlist_for_each_entry_continue_rcu_bh - iterate over a hlist continuing after current point
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_continue_rcu_bh(tpos, pos, member) \
+ for (pos = rcu_dereference_bh((pos)->next); \
+ pos && ({ prefetch(pos->next); 1; }) && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \
+ pos = rcu_dereference_bh(pos->next))
+
#endif /* __KERNEL__ */
#endif
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