diff options
author | Stephen Hemminger <shemminger@osdl.org> | 2006-12-07 18:08:17 -0500 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-08 20:19:20 -0500 |
commit | 3644f0cee77494190452de132e82245107939284 (patch) | |
tree | 7aeb1dd32c68e372cc2aaa9d26703dd238b48a53 /include/linux | |
parent | eb991b39385c7b04923d701764a34694ec54b53d (diff) |
[NET]: Convert hh_lock to seqlock.
The hard header cache is in the main output path, so using
seqlock instead of reader/writer lock should reduce overhead.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/netdevice.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c57088f575a3..631cec4ff5e1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h | |||
@@ -199,7 +199,7 @@ struct hh_cache | |||
199 | */ | 199 | */ |
200 | u16 hh_len; /* length of header */ | 200 | u16 hh_len; /* length of header */ |
201 | int (*hh_output)(struct sk_buff *skb); | 201 | int (*hh_output)(struct sk_buff *skb); |
202 | rwlock_t hh_lock; | 202 | seqlock_t hh_lock; |
203 | 203 | ||
204 | /* cached hardware header; allow for machine alignment needs. */ | 204 | /* cached hardware header; allow for machine alignment needs. */ |
205 | #define HH_DATA_MOD 16 | 205 | #define HH_DATA_MOD 16 |