net/sched: get rid of qdisc->padded
kmalloc() of sufficiently big portion of memory is cache-aligned
in regular conditions. If some debugging options are used,
there is no reason qdisc structures would need 64-byte alignment
if most other kernel structures are not aligned.
This get rid of QDISC_ALIGN and QDISC_ALIGNTO.
Addition of privdata field will help implementing
the reverse of qdisc_priv() and documents where
the private data is.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Allen Pais <allen.lkml@gmail.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index ac8c890..4ed32e6 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -19,12 +19,9 @@ struct qdisc_walker {
int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *);
};
-#define QDISC_ALIGNTO 64
-#define QDISC_ALIGN(len) (((len) + QDISC_ALIGNTO-1) & ~(QDISC_ALIGNTO-1))
-
static inline void *qdisc_priv(struct Qdisc *q)
{
- return (char *) q + QDISC_ALIGN(sizeof(struct Qdisc));
+ return &q->privdata;
}
/*