From: Paul Durrant <paul.durrant@citrix.com>
To: xen-devel@lists.xensource.com
Cc: Paul Durrant <paul.durrant@citrix.com>
Subject: [PATCH] Add a missing test to tx_work_todo.
Date: Tue, 14 Dec 2010 20:35:21 +0000 [thread overview]
Message-ID: <1292358922-5569-4-git-send-email-paul.durrant@citrix.com> (raw)
In-Reply-To: <1292358922-5569-3-git-send-email-paul.durrant@citrix.com>
Adda test so that, when netback is using worker threads, net_tx_action()
gets called in a timely manner when the pending_inuse list is populated.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
---
drivers/xen/netback/netback.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/xen/netback/netback.c b/drivers/xen/netback/netback.c
index 87a2cd4..eca61a9 100644
--- a/drivers/xen/netback/netback.c
+++ b/drivers/xen/netback/netback.c
@@ -1712,6 +1712,10 @@ static inline int tx_work_todo(struct xen_netbk *netbk)
if (netbk->dealloc_cons != netbk->dealloc_prod)
return 1;
+ if (netbk_copy_skb_mode == NETBK_DELAYED_COPY_SKB &&
+ !list_empty(&netbk->pending_inuse_head))
+ return 1;
+
if (((nr_pending_reqs(netbk) + MAX_SKB_FRAGS) < MAX_PENDING_REQS) &&
!list_empty(&netbk->net_schedule_list))
return 1;
--
1.5.6.5
next prev parent reply other threads:[~2010-12-14 20:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-14 20:35 [PATCH] Re-define PKT_PROT_LEN to be bigger Paul Durrant
2010-12-14 20:35 ` [PATCH] Don't count packets we don't actually receive Paul Durrant
2010-12-14 20:35 ` [PATCH] Remove the 500ms timeout to restart the netif queue Paul Durrant
2010-12-14 20:35 ` Paul Durrant [this message]
2010-12-14 20:35 ` [PATCH] Re-factor net_tx_action_dealloc() slightly Paul Durrant
2010-12-15 15:58 ` [PATCH] Remove the 500ms timeout to restart the netif queue Konrad Rzeszutek Wilk
2010-12-16 10:00 ` Paul Durrant
2010-12-14 22:17 ` [PATCH] Re-define PKT_PROT_LEN to be bigger Jeremy Fitzhardinge
2010-12-15 9:30 ` Paul Durrant
2010-12-15 9:37 ` Ian Campbell
2010-12-20 14:34 ` Ian Campbell
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