linux-kernel - [PATCH 07/12] hv_vmbus: Correct the stale comments regarding cpu affinity

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Message-Id: <20180212003320.6748-7-kys@exchange.microsoft.com>
Date:   Sun, 11 Feb 2018 17:33:15 -0700
From:   kys@...hange.microsoft.com
To:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
        vkuznets@...hat.com, jasowang@...hat.com,
        leann.ogasawara@...onical.com, marcelo.cerri@...onical.com,
        sthemmin@...rosoft.com
Cc:     Haiyang Zhang <haiyangz@...rosoft.com>,
        "K . Y . Srinivasan" <kys@...rosoft.com>
Subject: [PATCH 07/12] hv_vmbus: Correct the stale comments regarding cpu affinity

From: Haiyang Zhang <haiyangz@...rosoft.com>

The comments doesn't match what the current code does, also have a
typo. This patch corrects them.

Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 drivers/hv/channel_mgmt.c | 6 ++----
 include/linux/hyperv.h    | 2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index c21020b69114..c6d9d19bc04e 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -596,10 +596,8 @@ static int next_numa_node_id;
 /*
  * Starting with Win8, we can statically distribute the incoming
  * channel interrupt load by binding a channel to VCPU.
- * We do this in a hierarchical fashion:
- * First distribute the primary channels across available NUMA nodes
- * and then distribute the subchannels amongst the CPUs in the NUMA
- * node assigned to the primary channel.
+ * We distribute the interrupt loads to one or more NUMA nodes based on
+ * the channel's affinity_policy.
  *
  * For pre-win8 hosts or non-performance critical channels we assign the
  * first CPU in the first NUMA node.
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 93bd6fcd6e62..2048f3c3b68a 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -844,7 +844,7 @@ struct vmbus_channel {
 
 	/*
 	 * NUMA distribution policy:
-	 * We support teo policies:
+	 * We support two policies:
 	 * 1) Balanced: Here all performance critical channels are
 	 *    distributed evenly amongst all the NUMA nodes.
 	 *    This policy will be the default policy.
-- 
2.15.1