From: "K. Y. Srinivasan" <kys@microsoft.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com,
vkuznets@redhat.com, jasowang@redhat.com
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Subject: [PATCH V2 1/3] Drivers: hv: vmbus: Use the vp_index map even for channels bound to CPU 0
Date: Sat, 30 May 2015 23:37:47 -0700 [thread overview]
Message-ID: <1433054269-22278-1-git-send-email-kys@microsoft.com> (raw)
In-Reply-To: <1433054248-22239-1-git-send-email-kys@microsoft.com>
Map target_cpu to target_vcpu using the mapping table.
We should use the mapping table to transform guest CPU ID to VP Index
as is done for the non-performance critical channels.
While the value CPU 0 is special and will
map to VP index 0, it is good to be consistent.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
V2: Added clarification to the commit log (Dan Carpenter)
drivers/hv/channel_mgmt.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 1f1417d..c3eba37 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -406,7 +406,7 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
* channel, bind it to cpu 0.
*/
channel->target_cpu = 0;
- channel->target_vp = 0;
+ channel->target_vp = hv_context.vp_index[0];
return;
}
--
1.7.4.1
next prev parent reply other threads:[~2015-05-31 5:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-31 6:37 [PATCH V2 0/3] Drivers: hv: vmbus: Make VMBUS driver NUMA aware K. Y. Srinivasan
2015-05-31 6:37 ` K. Y. Srinivasan [this message]
2015-05-31 6:37 ` [PATCH V2 2/3] Drivers: hv: vmbus: Implement NUMA aware CPU affinity for channels K. Y. Srinivasan
2015-05-31 6:37 ` [PATCH V2 3/3] Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion K. Y. Srinivasan
2015-05-31 6:41 ` Greg KH
2015-05-31 18:39 ` KY Srinivasan
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