[libvirt] [PATCH 06/13] Remove obsolete cgroups creation apis
Daniel P. Berrange
berrange at redhat.com
Tue Jul 23 15:21:11 UTC 2013
From: "Daniel P. Berrange" <berrange at redhat.com>
The virCgroupNewDomainDriver and virCgroupNewDriver methods
are obsolete now that we can auto-detect existing cgroup
placement. Delete them to reduce code bloat.
Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
src/libvirt_private.syms | 2 -
src/util/vircgroup.c | 121 -----------------------------------------------
src/util/vircgroup.h | 11 -----
tests/vircgrouptest.c | 112 -------------------------------------------
4 files changed, 246 deletions(-)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 3be604b..5a5d112 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1188,9 +1188,7 @@ virCgroupKillPainfully;
virCgroupKillRecursive;
virCgroupMoveTask;
virCgroupNewDetect;
-virCgroupNewDomainDriver;
virCgroupNewDomainPartition;
-virCgroupNewDriver;
virCgroupNewEmulator;
virCgroupNewIgnoreError;
virCgroupNewPartition;
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index 1043318..593caad 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -918,28 +918,6 @@ error:
return -1;
}
-
-static int virCgroupAppRoot(virCgroupPtr *group,
- bool create,
- int controllers)
-{
- virCgroupPtr selfgrp = NULL;
- int ret = -1;
-
- if (virCgroupNewSelf(&selfgrp) < 0)
- return -1;
-
- if (virCgroupNew(-1, "libvirt", selfgrp, controllers, group) < 0)
- goto cleanup;
-
- if (virCgroupMakeGroup(selfgrp, *group, create, VIR_CGROUP_NONE) < 0)
- goto cleanup;
-
- ret = 0;
-cleanup:
- virCgroupFree(&selfgrp);
- return ret;
-}
#endif
#if defined _DIRENT_HAVE_D_TYPE
@@ -1387,53 +1365,6 @@ int virCgroupNewPartition(const char *path ATTRIBUTE_UNUSED,
}
#endif
-/**
- * virCgroupNewDriver:
- *
- * @name: name of this driver (e.g., xen, qemu, lxc)
- * @group: Pointer to returned virCgroupPtr
- *
- * Returns 0 on success, or -1 on error
- */
-#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
-int virCgroupNewDriver(const char *name,
- bool create,
- int controllers,
- virCgroupPtr *group)
-{
- int ret = -1;
- virCgroupPtr rootgrp = NULL;
-
- if (virCgroupAppRoot(&rootgrp,
- create, controllers) < 0)
- goto cleanup;
-
- if (virCgroupNew(-1, name, rootgrp, -1, group) < 0)
- goto cleanup;
-
- if (virCgroupMakeGroup(rootgrp, *group, create, VIR_CGROUP_NONE) < 0) {
- virCgroupRemove(*group);
- virCgroupFree(group);
- goto cleanup;
- }
-
- ret = 0;
-
-cleanup:
- virCgroupFree(&rootgrp);
- return ret;
-}
-#else
-int virCgroupNewDriver(const char *name ATTRIBUTE_UNUSED,
- bool create ATTRIBUTE_UNUSED,
- int controllers ATTRIBUTE_UNUSED,
- virCgroupPtr *group ATTRIBUTE_UNUSED)
-{
- virReportSystemError(ENXIO, "%s",
- _("Control groups not supported on this platform"));
- return -1;
-}
-#endif
/**
* virCgroupNewSelf:
@@ -1452,58 +1383,6 @@ int virCgroupNewSelf(virCgroupPtr *group)
/**
- * virCgroupNewDomainDriver:
- *
- * @driver: group for driver owning the domain
- * @name: name of the domain
- * @group: Pointer to returned virCgroupPtr
- *
- * Returns 0 on success, or -1 on error
- */
-#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
-int virCgroupNewDomainDriver(virCgroupPtr driver,
- const char *name,
- bool create,
- virCgroupPtr *group)
-{
- int ret = -1;
-
- if (virCgroupNew(-1, name, driver, -1, group) < 0)
- goto cleanup;
-
- /*
- * Create a cgroup with memory.use_hierarchy enabled to
- * surely account memory usage of lxc with ns subsystem
- * enabled. (To be exact, memory and ns subsystems are
- * enabled at the same time.)
- *
- * The reason why doing it here, not a upper group, say
- * a group for driver, is to avoid overhead to track
- * cumulative usage that we don't need.
- */
- if (virCgroupMakeGroup(driver, *group, create, VIR_CGROUP_MEM_HIERACHY) < 0) {
- virCgroupRemove(*group);
- virCgroupFree(group);
- goto cleanup;
- }
-
- ret = 0;
-cleanup:
- return ret;
-}
-#else
-int virCgroupNewDomainDriver(virCgroupPtr driver ATTRIBUTE_UNUSED,
- const char *name ATTRIBUTE_UNUSED,
- bool create ATTRIBUTE_UNUSED,
- virCgroupPtr *group ATTRIBUTE_UNUSED)
-{
- virReportSystemError(ENXIO, "%s",
- _("Control groups not supported on this platform"));
- return -1;
-}
-#endif
-
-/**
* virCgroupNewDomainPartition:
*
* @partition: partition holding the domain
diff --git a/src/util/vircgroup.h b/src/util/vircgroup.h
index 9bf0d7e..3c05604 100644
--- a/src/util/vircgroup.h
+++ b/src/util/vircgroup.h
@@ -59,20 +59,9 @@ int virCgroupNewPartition(const char *path,
virCgroupPtr *group)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(4);
-int virCgroupNewDriver(const char *name,
- bool create,
- int controllers,
- virCgroupPtr *group)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(4);
-
int virCgroupNewSelf(virCgroupPtr *group)
ATTRIBUTE_NONNULL(1);
-int virCgroupNewDomainDriver(virCgroupPtr driver,
- const char *name,
- bool create,
- virCgroupPtr *group)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4);
int virCgroupNewDomainPartition(virCgroupPtr partition,
const char *driver,
const char *name,
diff --git a/tests/vircgrouptest.c b/tests/vircgrouptest.c
index 18d10d9..20ac494 100644
--- a/tests/vircgrouptest.c
+++ b/tests/vircgrouptest.c
@@ -148,112 +148,6 @@ cleanup:
/* Asking for impossible combination since CPU is co-mounted */
-static int testCgroupNewForDriver(const void *args ATTRIBUTE_UNUSED)
-{
- virCgroupPtr cgroup = NULL;
- int ret = -1;
- int rv;
- const char *placementSmall[VIR_CGROUP_CONTROLLER_LAST] = {
- [VIR_CGROUP_CONTROLLER_CPU] = "/system/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_CPUACCT] = "/system/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_CPUSET] = NULL,
- [VIR_CGROUP_CONTROLLER_MEMORY] = "/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
- [VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
- [VIR_CGROUP_CONTROLLER_BLKIO] = NULL,
- };
- const char *placementFull[VIR_CGROUP_CONTROLLER_LAST] = {
- [VIR_CGROUP_CONTROLLER_CPU] = "/system/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_CPUACCT] = "/system/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_CPUSET] = "/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_MEMORY] = "/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
- [VIR_CGROUP_CONTROLLER_FREEZER] = "/libvirt/lxc",
- [VIR_CGROUP_CONTROLLER_BLKIO] = "/libvirt/lxc",
- };
-
- if ((rv = virCgroupNewDriver("lxc", false, -1, &cgroup)) != -1) {
- fprintf(stderr, "Unexpected found LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
- ENSURE_ERRNO(ENOENT);
-
- if ((rv = virCgroupNewDriver("lxc", true,
- (1 << VIR_CGROUP_CONTROLLER_CPU),
- &cgroup)) != -1) {
- fprintf(stderr, "Should not have created LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
- ENSURE_ERRNO(EINVAL);
-
- /* Asking for impossible combination since devices is not mounted */
- if ((rv = virCgroupNewDriver("lxc", true,
- (1 << VIR_CGROUP_CONTROLLER_DEVICES),
- &cgroup)) != -1) {
- fprintf(stderr, "Should not have created LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
- ENSURE_ERRNO(ENXIO);
-
- /* Asking for small combination since devices is not mounted */
- if ((rv = virCgroupNewDriver("lxc", true,
- (1 << VIR_CGROUP_CONTROLLER_CPU) |
- (1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
- (1 << VIR_CGROUP_CONTROLLER_MEMORY),
- &cgroup)) != 0) {
- fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
- ret = validateCgroup(cgroup, "libvirt/lxc", mountsSmall, links, placementSmall);
- virCgroupFree(&cgroup);
-
- if ((rv = virCgroupNewDriver("lxc", true, -1, &cgroup)) != 0) {
- fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
- ret = validateCgroup(cgroup, "libvirt/lxc", mountsFull, links, placementFull);
-
-cleanup:
- virCgroupFree(&cgroup);
- return ret;
-}
-
-
-static int testCgroupNewForDriverDomain(const void *args ATTRIBUTE_UNUSED)
-{
- virCgroupPtr drivercgroup = NULL;
- virCgroupPtr domaincgroup = NULL;
- int ret = -1;
- int rv;
- const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
- [VIR_CGROUP_CONTROLLER_CPU] = "/system/libvirt/lxc/wibble",
- [VIR_CGROUP_CONTROLLER_CPUACCT] = "/system/libvirt/lxc/wibble",
- [VIR_CGROUP_CONTROLLER_CPUSET] = "/libvirt/lxc/wibble",
- [VIR_CGROUP_CONTROLLER_MEMORY] = "/libvirt/lxc/wibble",
- [VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
- [VIR_CGROUP_CONTROLLER_FREEZER] = "/libvirt/lxc/wibble",
- [VIR_CGROUP_CONTROLLER_BLKIO] = "/libvirt/lxc/wibble",
- };
-
- if ((rv = virCgroupNewDriver("lxc", false, -1, &drivercgroup)) != 0) {
- fprintf(stderr, "Cannot find LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
-
- if ((rv = virCgroupNewDomainDriver(drivercgroup, "wibble", true, &domaincgroup)) != 0) {
- fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv);
- goto cleanup;
- }
-
- ret = validateCgroup(domaincgroup, "libvirt/lxc/wibble", mountsFull, links, placement);
-
-cleanup:
- virCgroupFree(&drivercgroup);
- virCgroupFree(&domaincgroup);
- return ret;
-}
-
-
static int testCgroupNewForPartition(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
@@ -537,12 +431,6 @@ mymain(void)
if (virtTestRun("New cgroup for self", 1, testCgroupNewForSelf, NULL) < 0)
ret = -1;
- if (virtTestRun("New cgroup for driver", 1, testCgroupNewForDriver, NULL) < 0)
- ret = -1;
-
- if (virtTestRun("New cgroup for domain driver", 1, testCgroupNewForDriverDomain, NULL) < 0)
- ret = -1;
-
if (virtTestRun("New cgroup for partition", 1, testCgroupNewForPartition, NULL) < 0)
ret = -1;
--
1.8.1.4
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