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authorEric Dumazet <edumazet@google.com>2015-03-16 07:12:16 +0300
committerDavid S. Miller <davem@davemloft.net>2015-03-16 22:55:29 +0300
commit13854e5a60461daee08ce99842b7f4d37553d911 (patch)
treef7bf7650ead7d8af1e93d98114da5cd1bf658956 /include/net/inet_sock.h
parent2c13270b441054a9596bcd99c0f446603c9ad131 (diff)
downloadlinux-13854e5a60461daee08ce99842b7f4d37553d911.tar.xz
inet: add proper refcounting to request sock
reqsk_put() is the generic function that should be used to release a refcount (and automatically call reqsk_free()) reqsk_free() might be called if refcount is known to be 0 or undefined. refcnt is set to one in inet_csk_reqsk_queue_add() As request socks are not yet in global ehash table, I added temporary debugging checks in reqsk_put() and reqsk_free() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_sock.h')
-rw-r--r--include/net/inet_sock.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index b3053fdd871e..3d8c09abb097 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -255,6 +255,11 @@ static inline struct request_sock *inet_reqsk_alloc(struct request_sock_ops *ops
ireq->opt = NULL;
atomic64_set(&ireq->ir_cookie, 0);
ireq->ireq_state = TCP_NEW_SYN_RECV;
+
+ /* Following is temporary. It is coupled with debugging
+ * helpers in reqsk_put() & reqsk_free()
+ */
+ atomic_set(&ireq->ireq_refcnt, 0);
}
return req;