The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.
A simplified version of the Coccinelle semantic patch making this change is as follows: @change@ expression E1,E2,E3; @@ - jiffies - E1 >= (E2*E3) + time_after_eq(jiffies, E1+E2*E3) Signed-off-by: Himangi Saraogi <[email protected]> Acked-by: Julia Lawall <[email protected]> --- net/decnet/af_decnet.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index ae011b4..25733d5 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -127,6 +127,7 @@ Version 0.0.6 2.1.110 07-aug-98 Eduardo Marcelo Serrat #include <linux/stat.h> #include <linux/init.h> #include <linux/poll.h> +#include <linux/jiffies.h> #include <net/net_namespace.h> #include <net/neighbour.h> #include <net/dst.h> @@ -598,7 +599,7 @@ int dn_destroy_timer(struct sock *sk) if (sk->sk_socket) return 0; - if ((jiffies - scp->stamp) >= (HZ * decnet_time_wait)) { + if (time_after_eq(jiffies, scp->stamp + HZ * decnet_time_wait)) { dn_unhash_sock(sk); sock_put(sk); return 1; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
