linux-kernel - [PATCH RESEND 0/4] hv_balloon: fixes for num_pages

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Message-Id: <20180207175003.28859-1-vkuznets@redhat.com>
Date:   Wed,  7 Feb 2018 18:49:59 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     devel@...uxdriverproject.org
Cc:     linux-kernel@...r.kernel.org,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Alex Ng <alexng@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Eduardo Otubo <otubo@...hat.com>
Subject: [PATCH RESEND 0/4] hv_balloon: fixes for num_pages_onlined accounting and misc improvements

I just noticed that this series got lost; the initial submission was on
Nov, 8 but nothing happened after. Resending.

Original description:

While doing routing code review I noticed that commit 6df8d9aaf3af
("Drivers: hv: balloon: Correctly update onlined page count") introduced
an issue with num_pages_onlined accounting on memory offlining. Deeper look
showed that the accounting was always buggy. This is fixed in PATCH3.
PATCHes 1 and 2 are preparatory cleanups, PATCH4 adds a tracepoint to
post_status so it's now possible to see what's being sent to the host and
where the data comes from.

Vitaly Kuznetsov (4):
  hv_balloon: fix printk loglevel
  hv_balloon: simplify hv_online_page()/hv_page_online_one()
  hv_balloon: fix bugs in num_pages_onlined accounting
  hv_balloon: trace post_status

 drivers/hv/Makefile           |   1 +
 drivers/hv/hv_balloon.c       | 121 +++++++++++++++++++++++++++++-------------
 drivers/hv/hv_trace_balloon.h |  48 +++++++++++++++++
 3 files changed, 132 insertions(+), 38 deletions(-)
 create mode 100644 drivers/hv/hv_trace_balloon.h

-- 
2.14.3