Re: [PATCH 3/3] ipvs: fix get_curr_sync_buff

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	Hello,

On Sun, 12 Dec 2010, Tinggong Wang wrote:

use time_after get the current buffer created more than the specified time.

time_before in get_curr_sync_buff(2 * HZ) will get the buffer created newly.
if curr_sb has been created more than 2*HZ then it will still sit in master.
so use time_after instead.

Signed-off-by: Tinggong Wang <wangtinggong@xxxxxxxxx>
---
net/netfilter/ipvs/ip_vs_sync.c |    3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 2b6b0cb..555b0dd 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -221,8 +221,7 @@ get_curr_sync_buff(unsigned long time)
	struct ip_vs_sync_buff *sb;

	spin_lock_bh(&curr_sb_lock);
-	if (curr_sb && (time == 0 ||
-			time_before(jiffies - curr_sb->firstuse, time))) {
+	if (curr_sb && time_after(jiffies - curr_sb->firstuse, time)) {

	This breaks the time=0 case when jiffies matches firstuse.

	May be the fix should be as follows?:

	if (curr_sb && time_after_eq(jiffies - curr_sb->firstuse, time)) {

	i.e. passed >= limit (2 or 0).

		sb = curr_sb;
		curr_sb = NULL;
	} else
--
1.7.2.3

Regards

--
Julian Anastasov <ja@xxxxxx>
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