diff options
| author | Robert Olsson <Robert.Olsson@data.slu.se> | 2005-08-25 22:01:03 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-30 01:08:31 +0200 |
| commit | e5b4376074e02b783e56a8f7c42d544e18112c4e (patch) | |
| tree | 7269e327d5132da92cd5c7238c03266b7c9f391b /include | |
| parent | [IPV4]: Module export of ip_rcv() no longer needed. (diff) | |
| download | linux-e5b4376074e02b783e56a8f7c42d544e18112c4e.tar.xz linux-e5b4376074e02b783e56a8f7c42d544e18112c4e.zip | |
[IPV4]: Prepare FIB core for RCU.
* RCU versions of hlist_***_rcu
* fib_alias partial rcu port just whats needed now.
Signed-off-by: Robert Olsson <Robert.Olsson@data.slu.se>
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/list.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/list.h b/include/linux/list.h index 0f2435f92db3..9b9b0eec1e8a 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -634,6 +634,27 @@ static inline void hlist_add_after(struct hlist_node *n, next->next->pprev = &next->next; } +static inline void hlist_add_before_rcu(struct hlist_node *n, + struct hlist_node *next) +{ + n->pprev = next->pprev; + n->next = next; + smp_wmb(); + next->pprev = &n->next; + *(n->pprev) = n; +} + +static inline void hlist_add_after_rcu(struct hlist_node *prev, + struct hlist_node *n) +{ + n->next = prev->next; + n->pprev = &prev->next; + smp_wmb(); + prev->next = n; + if (n->next) + n->next->pprev = &n->next; +} + #define hlist_entry(ptr, type, member) container_of(ptr,type,member) #define hlist_for_each(pos, head) \ |