From d26f398400311982d2433debae85746c348b7d58 Mon Sep 17 00:00:00 2001 From: Herbert Xu <herbert@gondor.apana.org.au> Date: Tue, 13 Nov 2007 21:47:08 -0800 Subject: [PATCH] [IPSEC]: Make x->lastused an unsigned long Currently x->lastused is u64 which means that it cannot be read/written atomically on all architectures. David Miller observed that the value stored in it is only an unsigned long which is always atomic. So based on his suggestion this patch changes the internal representation from u64 to unsigned long while the user-interface still refers to it as u64. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/xfrm.h | 2 +- net/ipv6/xfrm6_mode_ro.c | 2 -- net/xfrm/xfrm_user.c | 4 ++-- 3 files changed, 3 insertions(+), 5 deletions(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 329de412c0ba5..311bbd113aa7e 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -183,7 +183,7 @@ struct xfrm_state struct timer_list timer; /* Last used time */ - u64 lastused; + unsigned long lastused; /* Reference to data common to all the instances of this * transformer. */ diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c index 4a01cb3c370b6..63d5d493098af 100644 --- a/net/ipv6/xfrm6_mode_ro.c +++ b/net/ipv6/xfrm6_mode_ro.c @@ -54,9 +54,7 @@ static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb) __skb_pull(skb, hdr_len); memmove(ipv6_hdr(skb), iph, hdr_len); - spin_lock_bh(&x->lock); x->lastused = get_seconds(); - spin_unlock_bh(&x->lock); return 0; } diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index c4f6419b17694..6424e53605118 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1986,8 +1986,8 @@ static inline size_t xfrm_sa_len(struct xfrm_state *x) if (x->coaddr) l += nla_total_size(sizeof(*x->coaddr)); - /* Must count this as this may become non-zero behind our back. */ - l += nla_total_size(sizeof(x->lastused)); + /* Must count x->lastused as it may become non-zero behind our back. */ + l += nla_total_size(sizeof(u64)); return l; } -- GitLab