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netem: define NETEM_DIST_MAX

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Rather than magic constant in code, expose the maximum size of
packet distribution table in API. In iproute2, q_netem defines
MAX_DIST as 16K already.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2011-02-23 13:04:19 +00:00 committed by David S. Miller
parent 6373a9a286
commit df173bda26
2 changed files with 2 additions and 1 deletions
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1
include/linux/pkt_sched.h
View File

@ -495,6 +495,7 @@ struct tc_netem_corrupt {
}; };
#define NETEM_DIST_SCALE 8192 #define NETEM_DIST_SCALE 8192
#define NETEM_DIST_MAX 16384
/* DRR */ /* DRR */

2
net/sched/sch_netem.c
View File

@ -332,7 +332,7 @@ static int get_dist_table(struct Qdisc *sch, const struct nlattr *attr)
int i; int i;
size_t s; size_t s;
if (n > 65536) if (n > NETEM_DIST_MAX)
return -EINVAL; return -EINVAL;
s = sizeof(struct disttable) + n * sizeof(s16); s = sizeof(struct disttable) + n * sizeof(s16);