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From 3e61b08bd5d925b262e3ca84d234670917604fda Mon Sep 17 00:00:00 2001
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Message-Id: <3e61b08bd5d925b262e3ca84d234670917604fda@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:06:53 +0200
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Subject: [PATCH] vircgroup: extract virCgroupV1GetMemSwapUsage
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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(cherry picked from commit 87d9fc5b3bfbe217af1a5316af4392540f676657)
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Message-Id: <c660f81cdf6e8771917e54c44d362ebb4d2fbdb4.1561993100.git.phrdina@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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 src/util/vircgroup.c        |  9 +--------
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 src/util/vircgroupbackend.h |  5 +++++
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 src/util/vircgroupv1.c      | 16 ++++++++++++++++
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 3 files changed, 22 insertions(+), 8 deletions(-)
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diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
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index 6708eef0da..088e97cb3f 100644
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--- a/src/util/vircgroup.c
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+++ b/src/util/vircgroup.c
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@@ -1697,14 +1697,7 @@ virCgroupGetMemSwapHardLimit(virCgroupPtr group, unsigned long long *kb)
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 int
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 virCgroupGetMemSwapUsage(virCgroupPtr group, unsigned long long *kb)
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 {
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-    long long unsigned int usage_in_bytes;
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-    int ret;
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-    ret = virCgroupGetValueU64(group,
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-                               VIR_CGROUP_CONTROLLER_MEMORY,
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-                               "memory.memsw.usage_in_bytes", &usage_in_bytes);
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-    if (ret == 0)
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-        *kb = usage_in_bytes >> 10;
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-    return ret;
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+    VIR_CGROUP_BACKEND_CALL(group, getMemSwapUsage, -1, kb);
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 }
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diff --git a/src/util/vircgroupbackend.h b/src/util/vircgroupbackend.h
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index cdbca4b907..27e6b18ea2 100644
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--- a/src/util/vircgroupbackend.h
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+++ b/src/util/vircgroupbackend.h
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@@ -251,6 +251,10 @@ typedef int
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 (*virCgroupGetMemSwapHardLimitCB)(virCgroupPtr group,
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                                   unsigned long long *kb);
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+typedef int
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+(*virCgroupGetMemSwapUsageCB)(virCgroupPtr group,
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+                              unsigned long long *kb);
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+
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 struct _virCgroupBackend {
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     virCgroupBackendType type;
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@@ -299,6 +303,7 @@ struct _virCgroupBackend {
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     virCgroupGetMemorySoftLimitCB getMemorySoftLimit;
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     virCgroupSetMemSwapHardLimitCB setMemSwapHardLimit;
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     virCgroupGetMemSwapHardLimitCB getMemSwapHardLimit;
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+    virCgroupGetMemSwapUsageCB getMemSwapUsage;
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 };
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 typedef struct _virCgroupBackend virCgroupBackend;
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 typedef virCgroupBackend *virCgroupBackendPtr;
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diff --git a/src/util/vircgroupv1.c b/src/util/vircgroupv1.c
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index 779288fb97..55b1d3ebd0 100644
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--- a/src/util/vircgroupv1.c
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+++ b/src/util/vircgroupv1.c
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@@ -1656,6 +1656,21 @@ virCgroupV1GetMemSwapHardLimit(virCgroupPtr group,
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 }
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+static int
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+virCgroupV1GetMemSwapUsage(virCgroupPtr group,
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+                           unsigned long long *kb)
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+{
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+    long long unsigned int usage_in_bytes;
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+    int ret;
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+    ret = virCgroupGetValueU64(group,
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+                               VIR_CGROUP_CONTROLLER_MEMORY,
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+                               "memory.memsw.usage_in_bytes", &usage_in_bytes);
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+    if (ret == 0)
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+        *kb = usage_in_bytes >> 10;
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+    return ret;
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+}
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+
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+
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 virCgroupBackend virCgroupV1Backend = {
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     .type = VIR_CGROUP_BACKEND_TYPE_V1,
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@@ -1702,6 +1717,7 @@ virCgroupBackend virCgroupV1Backend = {
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     .getMemorySoftLimit = virCgroupV1GetMemorySoftLimit,
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     .setMemSwapHardLimit = virCgroupV1SetMemSwapHardLimit,
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     .getMemSwapHardLimit = virCgroupV1GetMemSwapHardLimit,
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+    .getMemSwapUsage = virCgroupV1GetMemSwapUsage,
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 };
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-- 
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2.22.0
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