--- src/lxc/lxc_native.c | 63 ++++++++++++++++++++++ tests/lxcconf2xmldata/lxcconf2xml-blkiotune.config | 7 +++ tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml | 35 ++++++++++++ tests/lxcconf2xmltest.c | 1 + 4 files changed, 106 insertions(+) create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-blkiotune.config create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml
diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c index ee8fa75..15c03f2 100644 --- a/src/lxc/lxc_native.c +++ b/src/lxc/lxc_native.c @@ -699,6 +699,65 @@ lxcSetCpusetTune(virDomainDefPtr def, virConfPtr properties) return 0; } +static int +lxcBlkioDeviceWalkCallback(const char *name, virConfValuePtr value, void *data) +{ + char **parts = NULL; + virBlkioDevicePtr device = NULL; + virDomainDefPtr def = data; + + if (STRNEQ(name, "lxc.cgroup.blkio.device_weight") || !value->str) + return 0; + + if ((!(parts = lxcStringSplit(value->str)) && (!parts[0] || !parts[1]))) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("invalid blkio.device_weight value: '%s'"), + value->str); + goto error; + } + + if (VIR_EXPAND_N(def->blkio.devices, def->blkio.ndevices, 1) < 0) + goto error; + device = &def->blkio.devices[def->blkio.ndevices - 1]; + + if (virAsprintf(&device->path, "/dev/block/%s", parts[0]) < 0) + goto error; + + if (virStrToLong_ui(parts[1], NULL, 10, &device->weight) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("failed to parse integer: '%s'"), parts[1]); + goto error; + } + + virStringFreeList(parts); + + return 0; + +error: + if (parts) + virStringFreeList(parts); + return -1; +} + +static int +lxcSetBlkioTune(virDomainDefPtr def, virConfPtr properties) +{ + virConfValuePtr value; + + if ((value = virConfGetValue(properties, "lxc.cgroup.blkio.weight")) && + value->str && virStrToLong_ui(value->str, NULL, 10, + &def->blkio.weight) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("failed to parse integer: '%s'"), value->str); + return -1; + } + + if (virConfWalk(properties, lxcBlkioDeviceWalkCallback, def) < 0) + return -1; + + return 0; +} + virDomainDefPtr lxcParseConfigString(const char *config) { @@ -783,6 +842,10 @@ lxcParseConfigString(const char *config) if (lxcSetCpusetTune(vmdef, properties) < 0) goto error; + /* lxc.cgroup.blkio.* */ + if (lxcSetBlkioTune(vmdef, properties) < 0) + goto error; + goto cleanup; error: diff --git a/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.config b/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.config new file mode 100644 index 0000000..8083c71 --- /dev/null +++ b/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.config @@ -0,0 +1,7 @@ +lxc.rootfs = /var/lib/lxc/migrate_test/rootfs +lxc.utsname = migrate_test +lxc.autodev=1 + +lxc.cgroup.blkio.weight = 500 +lxc.cgroup.blkio.device_weight = 8:16 1000 +lxc.cgroup.blkio.device_weight = 8:0 300 diff --git a/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml b/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml new file mode 100644 index 0000000..d2408f4 --- /dev/null +++ b/tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml @@ -0,0 +1,35 @@ +<domain type='lxc'> + <name>migrate_test</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>65536</memory> + <currentMemory unit='KiB'>0</currentMemory> + <blkiotune> + <weight>500</weight> + <device> + <path>/dev/block/8:16</path> + <weight>1000</weight> + </device> + <device> + <path>/dev/block/8:0</path> + <weight>300</weight> + </device> + </blkiotune> + <vcpu placement='static' current='0'>1</vcpu> + <os> + <type>exe</type> + <init>/sbin/init</init> + </os> + <features> + <privnet/> + </features> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <filesystem type='mount' accessmode='passthrough'> + <source dir='/var/lib/lxc/migrate_test/rootfs'/> + <target dir='/'/> + </filesystem> + </devices> +</domain> diff --git a/tests/lxcconf2xmltest.c b/tests/lxcconf2xmltest.c index 6bee5c5..77baf20 100644 --- a/tests/lxcconf2xmltest.c +++ b/tests/lxcconf2xmltest.c @@ -112,6 +112,7 @@ mymain(void) DO_TEST("memtune", false); DO_TEST("cputune", false); DO_TEST("cpusettune", false); + DO_TEST("blkiotune", false); return ret; } -- 1.8.5.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list