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SUNRPC: Clean up scheduling of autoclose 

Consolidate duplicated code in xprt_force_disconnect() and
xprt_conditional_disconnect().

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2021-07-26 07:59:24 -04:00 committed by Anna Schumaker
parent c2dc3e5fad
commit e26d997272
1 changed files with 16 additions and 12 deletions
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28
net/sunrpc/xprt.c
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@ -760,6 +760,20 @@ void xprt_disconnect_done(struct rpc_xprt *xprt)
}
EXPORT_SYMBOL_GPL(xprt_disconnect_done);
/**
* xprt_schedule_autoclose_locked - Try to schedule an autoclose RPC call
* @xprt: transport to disconnect
*/
static void xprt_schedule_autoclose_locked(struct rpc_xprt *xprt)
{
set_bit(XPRT_CLOSE_WAIT, &xprt->state);
if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
queue_work(xprtiod_workqueue, &xprt->task_cleanup);
else if (xprt->snd_task && !test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
rpc_wake_up_queued_task_set_status(&xprt->pending,
xprt->snd_task, -ENOTCONN);
}
/**
* xprt_force_disconnect - force a transport to disconnect
* @xprt: transport to disconnect
@ -771,13 +785,7 @@ void xprt_force_disconnect(struct rpc_xprt *xprt)
/* Don't race with the test_bit() in xprt_clear_locked() */
spin_lock(&xprt->transport_lock);
set_bit(XPRT_CLOSE_WAIT, &xprt->state);
/* Try to schedule an autoclose RPC call */
if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
queue_work(xprtiod_workqueue, &xprt->task_cleanup);
else if (xprt->snd_task && !test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
rpc_wake_up_queued_task_set_status(&xprt->pending,
xprt->snd_task, -ENOTCONN);
xprt_schedule_autoclose_locked(xprt);
spin_unlock(&xprt->transport_lock);
}
EXPORT_SYMBOL_GPL(xprt_force_disconnect);
@ -817,11 +825,7 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie)
goto out;
if (test_bit(XPRT_CLOSING, &xprt->state))
goto out;
set_bit(XPRT_CLOSE_WAIT, &xprt->state);
/* Try to schedule an autoclose RPC call */
if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
queue_work(xprtiod_workqueue, &xprt->task_cleanup);
xprt_wake_pending_tasks(xprt, -EAGAIN);
xprt_schedule_autoclose_locked(xprt);
out:
spin_unlock(&xprt->transport_lock);
}