forked from rpms/libvirt
156 lines
5.1 KiB
Diff
156 lines
5.1 KiB
Diff
From d91df2c6090f79ef0135f2240181b8dbf87597b0 Mon Sep 17 00:00:00 2001
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Message-Id: <d91df2c6090f79ef0135f2240181b8dbf87597b0@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:06:01 +0200
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Subject: [PATCH] vircgroup: Introduce virCgroupGetMemoryStat
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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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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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(cherry picked from commit 901d2b9c8716f2717439d5843cab412ab8d7b247)
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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: <b70cd9890f218f943b094bc6b040867c6d69bc6b.1561993099.git.phrdina@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/libvirt_private.syms | 1 +
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src/util/vircgroup.c | 88 ++++++++++++++++++++++++++++++++++++++++
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src/util/vircgroup.h | 7 ++++
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3 files changed, 96 insertions(+)
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diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
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index 47695eb507..2ec9d8f4bf 100644
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--- a/src/libvirt_private.syms
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+++ b/src/libvirt_private.syms
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@@ -1551,6 +1551,7 @@ virCgroupGetDomainTotalCpuStats;
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virCgroupGetFreezerState;
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virCgroupGetMemoryHardLimit;
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virCgroupGetMemorySoftLimit;
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+virCgroupGetMemoryStat;
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virCgroupGetMemoryUsage;
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virCgroupGetMemSwapHardLimit;
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virCgroupGetMemSwapUsage;
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diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
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index a94f958d75..0ed83932ac 100644
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--- a/src/util/vircgroup.c
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+++ b/src/util/vircgroup.c
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@@ -2427,6 +2427,94 @@ virCgroupSetMemory(virCgroupPtr group, unsigned long long kb)
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}
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+/**
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+ * virCgroupGetMemoryStat:
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+ *
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+ * @group: The cgroup to change memory for
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+ * @cache: page cache memory in KiB
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+ * @activeAnon: anonymous and swap cache memory in KiB
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+ * @inactiveAnon: anonymous and swap cache memory in KiB
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+ * @activeFile: file-backed memory in KiB
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+ * @inactiveFile: file-backed memory in KiB
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+ * @unevictable: memory that cannot be reclaimed KiB
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+ *
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+ * Returns: 0 on success, -1 on error
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+ */
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+int
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+virCgroupGetMemoryStat(virCgroupPtr group,
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+ unsigned long long *cache,
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+ unsigned long long *activeAnon,
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+ unsigned long long *inactiveAnon,
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+ unsigned long long *activeFile,
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+ unsigned long long *inactiveFile,
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+ unsigned long long *unevictable)
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+{
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+ int ret = -1;
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+ char *stat = NULL;
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+ char *line = NULL;
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+ unsigned long long cacheVal = 0;
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+ unsigned long long activeAnonVal = 0;
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+ unsigned long long inactiveAnonVal = 0;
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+ unsigned long long activeFileVal = 0;
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+ unsigned long long inactiveFileVal = 0;
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+ unsigned long long unevictableVal = 0;
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+
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+ if (virCgroupGetValueStr(group,
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+ VIR_CGROUP_CONTROLLER_MEMORY,
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+ "memory.stat",
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+ &stat) < 0) {
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+ return -1;
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+ }
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+
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+ line = stat;
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+
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+ while (line) {
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+ char *newLine = strchr(line, '\n');
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+ char *valueStr = strchr(line, ' ');
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+ unsigned long long value;
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+
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+ if (newLine)
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+ *newLine = '\0';
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+
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+ if (!valueStr) {
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+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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+ _("Cannot parse 'memory.stat' cgroup file."));
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+ goto cleanup;
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+ }
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+ *valueStr = '\0';
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+
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+ if (virStrToLong_ull(valueStr + 1, NULL, 10, &value) < 0)
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+ goto cleanup;
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+
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+ if (STREQ(line, "cache"))
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+ cacheVal = value >> 10;
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+ else if (STREQ(line, "active_anon"))
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+ activeAnonVal = value >> 10;
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+ else if (STREQ(line, "inactive_anon"))
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+ inactiveAnonVal = value >> 10;
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+ else if (STREQ(line, "active_file"))
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+ activeFileVal = value >> 10;
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+ else if (STREQ(line, "inactive_file"))
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+ inactiveFileVal = value >> 10;
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+ else if (STREQ(line, "unevictable"))
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+ unevictableVal = value >> 10;
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+ }
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+
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+ *cache = cacheVal;
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+ *activeAnon = activeAnonVal;
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+ *inactiveAnon = inactiveAnonVal;
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+ *activeFile = activeFileVal;
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+ *inactiveFile = inactiveFileVal;
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+ *unevictable = unevictableVal;
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+
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+ ret = 0;
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+
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+ cleanup:
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+ VIR_FREE(stat);
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+ return ret;
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+}
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+
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+
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/**
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* virCgroupGetMemoryUsage:
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*
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diff --git a/src/util/vircgroup.h b/src/util/vircgroup.h
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index 48be077aba..c7fdaaede4 100644
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--- a/src/util/vircgroup.h
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+++ b/src/util/vircgroup.h
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@@ -177,6 +177,13 @@ int virCgroupGetBlkioDeviceWriteBps(virCgroupPtr group,
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unsigned long long *wbps);
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int virCgroupSetMemory(virCgroupPtr group, unsigned long long kb);
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+int virCgroupGetMemoryStat(virCgroupPtr group,
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+ unsigned long long *cache,
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+ unsigned long long *activeAnon,
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+ unsigned long long *inactiveAnon,
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+ unsigned long long *activeFile,
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+ unsigned long long *inactiveFile,
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+ unsigned long long *unevictable);
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int virCgroupGetMemoryUsage(virCgroupPtr group, unsigned long *kb);
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int virCgroupSetMemoryHardLimit(virCgroupPtr group, unsigned long long kb);
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--
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2.22.0
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