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[Qemu-devel] [PATCH] virtio-balloon: fix internal stat name array to mat

From: Jonathan Helman
Subject: [Qemu-devel] [PATCH] virtio-balloon: fix internal stat name array to match Linux kernel
Date: Fri, 4 May 2018 09:30:45 -0700

The Linux kernel commit b40000325044 ("virtio_balloon: add array
of stat names") defines an array of stat name strings for consumers
of the virtio interface to use via the virtio_balloon.h header
file, rather than requiring each consumer to define its own. But at
present, the stat names defined in this array by the Linux kernel
do not match up with those defined internally by QEMU. This patch
fixes this inconsistency by changing the QEMU stat names to match
those defined by the Linux kernel.

Signed-off-by: Jonathan Helman <address@hidden>
Cc: Rob Gardner <address@hidden>
Cc: Thomas Tai <address@hidden>
 docs/virtio-balloon-stats.txt | 4 ++--
 hw/virtio/virtio-balloon.c    | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/virtio-balloon-stats.txt b/docs/virtio-balloon-stats.txt
index 9985e1d..7c69fdb 100644
--- a/docs/virtio-balloon-stats.txt
+++ b/docs/virtio-balloon-stats.txt
@@ -34,8 +34,8 @@ which will return a dictionary containing:
       - stat-total-memory
       - stat-available-memory
       - stat-disk-caches
-      - stat-htlb-pgalloc
-      - stat-htlb-pgfail
+      - stat-hugetlb-allocations
+      - stat-hugetlb-failures
   o A key named last-update, which contains the last stats update
     timestamp in seconds. Since this timestamp is generated by the host,
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index 1f7a87f..8421d9f 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -52,8 +52,8 @@ static const char *balloon_stat_names[] = {
    [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory",
    [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory",
    [VIRTIO_BALLOON_S_CACHES] = "stat-disk-caches",
-   [VIRTIO_BALLOON_S_HTLB_PGALLOC] = "stat-htlb-pgalloc",
-   [VIRTIO_BALLOON_S_HTLB_PGFAIL] = "stat-htlb-pgfail",
+   [VIRTIO_BALLOON_S_HTLB_PGALLOC] = "stat-hugetlb-allocations",
+   [VIRTIO_BALLOON_S_HTLB_PGFAIL] = "stat-hugetlb-failures",

Based-on: <address@hidden>
([PULL 4/4] virtio-balloon: add hugetlb page allocation counts)

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