Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a2deb6d26f16ed7bf787dbd6a58c5d7be47d8db3
Commit: a2deb6d26f16ed7bf787dbd6a58c5d7be47d8db3
Parent: e40b3286158565909692e5914ea4a11bdbcc68c8
Author: Herbert Xu <[EMAIL PROTECTED]>
AuthorDate: Tue Nov 13 21:39:38 2007 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 14:53:44 2008 -0800
[IPSEC]: Move x->outer_mode->output out of locked section
RO mode is the only one that requires a locked output function. So
it's easier to move the lock into that function rather than requiring
everyone else to run under the lock.
In particular, this allows us to move the size check into the output
function without causing a potential dead-lock should the ICMP error
somehow hit the same SA on transmission.
Signed-off-by: Herbert Xu <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
net/ipv6/xfrm6_mode_ro.c | 3 +++
net/xfrm/xfrm_output.c | 8 ++++----
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c
index a7bc8c6..4a01cb3 100644
--- a/net/ipv6/xfrm6_mode_ro.c
+++ b/net/ipv6/xfrm6_mode_ro.c
@@ -28,6 +28,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/skbuff.h>
+#include <linux/spinlock.h>
#include <linux/stringify.h>
#include <linux/time.h>
#include <net/ipv6.h>
@@ -53,7 +54,9 @@ 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_output.c b/net/xfrm/xfrm_output.c
index 58d5a74..b1efdc8 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -53,6 +53,10 @@ int xfrm_output(struct sk_buff *skb)
}
do {
+ err = x->outer_mode->output(x, skb);
+ if (err)
+ goto error;
+
spin_lock_bh(&x->lock);
err = xfrm_state_check(x, skb);
if (err)
@@ -64,10 +68,6 @@ int xfrm_output(struct sk_buff *skb)
xfrm_replay_notify(x, XFRM_REPLAY_UPDATE);
}
- err = x->outer_mode->output(x, skb);
- if (err)
- goto error;
-
x->curlft.bytes += skb->len;
x->curlft.packets++;
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
