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vircgroup: refactor virCgroupEnableMissingControllers

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Use virStringSplit() to get the list of directories needed to be
created. This improves readability of the code and stops passing
absolute path to virCgroupNewFromParent().

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Pavel Hrdina 2020-11-02 16:05:07 +01:00
parent 99d2c6519a
commit 77291414c7
1 changed files with 8 additions and 18 deletions
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26
src/util/vircgroup.c
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@ -1131,21 +1131,18 @@ virCgroupEnableMissingControllers(char *path,
virCgroupPtr *group)
{
g_autoptr(virCgroup) parent = NULL;
char *offset = path;
VIR_AUTOSTRINGLIST tokens = virStringSplit(path, "/", 0);
size_t i;
if (virCgroupNew("/",
controllers,
&parent) < 0)
if (virCgroupNew("/", controllers, &parent) < 0)
return -1;
for (;;) {
/* Skip the first token as it is empty string. */
for (i = 1; tokens[i]; i++) {
g_autoptr(virCgroup) tmp = NULL;
char *t = strchr(offset + 1, '/');
if (t)
*t = '\0';
if (virCgroupNewFromParent(parent,
path,
tokens[i],
controllers,
&tmp) < 0)
return -1;
@ -1153,17 +1150,10 @@ virCgroupEnableMissingControllers(char *path,
if (virCgroupMakeGroup(parent, tmp, true, VIR_CGROUP_SYSTEMD) < 0)
return -1;
if (t) {
*t = '/';
offset = t;
virCgroupFree(parent);
parent = g_steal_pointer(&tmp);
} else {
*group = g_steal_pointer(&tmp);
break;
}
parent = g_steal_pointer(&tmp);
}
*group = g_steal_pointer(&parent);
return 0;
}