diff options
| author | Roopa Prabhu <roopa@cumulusnetworks.com> | 2019-02-14 18:15:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-17 19:33:39 +0100 |
| commit | 56dd18a49f6ee62ce06eb6cd0aec050e23d4e603 (patch) | |
| tree | 3d6db80bf2cad630a3c1f5e8cf44a916b1b35279 /net/core | |
| parent | trace: events: add a few neigh tracepoints (diff) | |
| download | linux-56dd18a49f6ee62ce06eb6cd0aec050e23d4e603.tar.xz linux-56dd18a49f6ee62ce06eb6cd0aec050e23d4e603.zip | |
neigh: hook tracepoints in neigh update code
hook tracepoints at the end of functions that
update a neigh entry. neigh_update gets an additional
tracepoint to trace the update flags and old and new
neigh states.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/neighbour.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 4230400b9a30..30f6fd8f68e0 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -42,6 +42,8 @@ #include <linux/inetdevice.h> #include <net/addrconf.h> +#include <trace/events/neigh.h> + #define DEBUG #define NEIGH_DEBUG 1 #define neigh_dbg(level, fmt, ...) \ @@ -102,6 +104,7 @@ static void neigh_cleanup_and_release(struct neighbour *neigh) if (neigh->parms->neigh_cleanup) neigh->parms->neigh_cleanup(neigh); + trace_neigh_cleanup_and_release(neigh, 0); __neigh_notify(neigh, RTM_DELNEIGH, 0, 0); call_netevent_notifiers(NETEVENT_NEIGH_UPDATE, neigh); neigh_release(neigh); @@ -1095,6 +1098,8 @@ out: if (notify) neigh_update_notify(neigh, 0); + trace_neigh_timer_handler(neigh, 0); + neigh_release(neigh); } @@ -1165,6 +1170,7 @@ out_unlock_bh: else write_unlock(&neigh->lock); local_bh_enable(); + trace_neigh_event_send_done(neigh, rc); return rc; out_dead: @@ -1172,6 +1178,7 @@ out_dead: goto out_unlock_bh; write_unlock_bh(&neigh->lock); kfree_skb(skb); + trace_neigh_event_send_dead(neigh, 1); return 1; } EXPORT_SYMBOL(__neigh_event_send); @@ -1227,6 +1234,8 @@ static int __neigh_update(struct neighbour *neigh, const u8 *lladdr, struct net_device *dev; int update_isrouter = 0; + trace_neigh_update(neigh, lladdr, new, flags, nlmsg_pid); + write_lock_bh(&neigh->lock); dev = neigh->dev; @@ -1393,6 +1402,8 @@ out: if (notify) neigh_update_notify(neigh, nlmsg_pid); + trace_neigh_update_done(neigh, err); + return err; } |