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rxrpc: Add a tracepoint to track rxrpc_peer refcounting

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Add a tracepoint to track reference counting on the rxrpc_peer struct.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-03-30 21:05:38 +01:00
parent 31f5f9a169
commit 1159d4b496
4 changed files with 110 additions and 22 deletions
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23
net/rxrpc/ar-internal.h
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@@ -1041,25 +1041,10 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *,
struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t);
struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *,
struct rxrpc_peer *);
static inline struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer)
{
atomic_inc(&peer->usage);
return peer;
}
static inline
struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer)
{
return atomic_inc_not_zero(&peer->usage) ? peer : NULL;
}
extern void __rxrpc_put_peer(struct rxrpc_peer *peer);
static inline void rxrpc_put_peer(struct rxrpc_peer *peer)
{
if (peer && atomic_dec_and_test(&peer->usage))
__rxrpc_put_peer(peer);
}
struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *);
struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *);
void rxrpc_put_peer(struct rxrpc_peer *);
void __rxrpc_queue_peer_error(struct rxrpc_peer *);
/*
* proc.c