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Revert "xen-netback: Aggregate TX unmap operations"

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This reverts commit e9275f5e2d. This commit is the
last in the netback grant mapping series, and it tries to do more aggressive
aggreagtion of unmap operations. However practical use showed almost no
positive effect, whilst with certain frontends it causes significant performance
regression.

Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zoltan Kiss
2014-03-21 17:23:04 +00:00
committed by David S. Miller
parent 8779772c93
commit 397dfd9f93
3 changed files with 1 additions and 37 deletions
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2
drivers/net/xen-netback/interface.c
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@@ -407,7 +407,6 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
.desc = i };
vif->grant_tx_handle[i] = NETBACK_INVALID_HANDLE;
}
init_timer(&vif->dealloc_delay);
/*
* Initialise a dummy MAC address. We choose the numerically
@@ -556,7 +555,6 @@ void xenvif_disconnect(struct xenvif *vif)
}
if (vif->dealloc_task) {
del_timer_sync(&vif->dealloc_delay);
kthread_stop(vif->dealloc_task);
vif->dealloc_task = NULL;
}