From: Eric Dumazet <eduma...@google.com>
On loaded TCP servers, looking at millions of sockets can hold
cpu for many seconds, if the lookup condition is very narrow.
(eg : ss dst 1.2.3.4 )
Better add a cond_resched() to allow other processes to access
the cpu.
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
net/ipv4/inet_diag.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 6029157..7883473 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -879,6 +879,7 @@ next_normal:
}
spin_unlock_bh(lock);
+ cond_resched();
}
done:
