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libceph: drop osd ref when canceling con work 

queue_con() bumps osd ref count.  We should do the reverse when
canceling con work.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
This commit is contained in:
Ilya Dryomov 2014-06-24 16:21:45 +04:00
parent 2d05f082cb
commit 37ab77ac29
1 changed files with 10 additions and 4 deletions
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14
net/ceph/messenger.c
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@ -174,6 +174,7 @@ static struct lock_class_key socket_class;
#define SKIP_BUF_SIZE 1024
static void queue_con(struct ceph_connection *con);
static void cancel_con(struct ceph_connection *con);
static void con_work(struct work_struct *);
static void con_fault(struct ceph_connection *con);
@ -680,7 +681,7 @@ void ceph_con_close(struct ceph_connection *con)
reset_connection(con);
con->peer_global_seq = 0;
cancel_delayed_work(&con->work);
cancel_con(con);
con_close_socket(con);
mutex_unlock(&con->mutex);
}
@ -2667,19 +2668,16 @@ static int queue_con_delay(struct ceph_connection *con, unsigned long delay)
{
if (!con->ops->get(con)) {
dout("%s %p ref count 0\n", __func__, con);
return -ENOENT;
}
if (!queue_delayed_work(ceph_msgr_wq, &con->work, delay)) {
dout("%s %p - already queued\n", __func__, con);
con->ops->put(con);
return -EBUSY;
}
dout("%s %p %lu\n", __func__, con, delay);
return 0;
}
@ -2688,6 +2686,14 @@ static void queue_con(struct ceph_connection *con)
(void) queue_con_delay(con, 0);
}
static void cancel_con(struct ceph_connection *con)
{
if (cancel_delayed_work(&con->work)) {
dout("%s %p\n", __func__, con);
con->ops->put(con);
}
}
static bool con_sock_closed(struct ceph_connection *con)
{
if (!con_flag_test_and_clear(con, CON_FLAG_SOCK_CLOSED))