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svcrpc: don't set then immediately clear XPT_DEFERRED

There's no harm to doing this, since the only caller will immediately
call svc_enqueue() afterwards, ensuring we don't miss the remaining
deferred requests just because XPT_DEFERRED was briefly cleared.

But why not just do this the simple way?

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2010-10-25 12:50:15 -04:00
parent 43b0178eda
commit 62bac4af3d

View File

@ -1059,14 +1059,13 @@ static struct svc_deferred_req *svc_deferred_dequeue(struct svc_xprt *xprt)
if (!test_bit(XPT_DEFERRED, &xprt->xpt_flags))
return NULL;
spin_lock(&xprt->xpt_lock);
clear_bit(XPT_DEFERRED, &xprt->xpt_flags);
if (!list_empty(&xprt->xpt_deferred)) {
dr = list_entry(xprt->xpt_deferred.next,
struct svc_deferred_req,
handle.recent);
list_del_init(&dr->handle.recent);
set_bit(XPT_DEFERRED, &xprt->xpt_flags);
}
} else
clear_bit(XPT_DEFERRED, &xprt->xpt_flags);
spin_unlock(&xprt->xpt_lock);
return dr;
}