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cgfsng: fix get_hierarchy() for unified hierarchy

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-02-24 21:36:20 +01:00
parent 7211378b1f
commit 106f1f38ef
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GPG Key ID: 8EB056D53EECB12D
1 changed files with 11 additions and 5 deletions
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16
src/lxc/cgroups/cgfsng.c
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@ -327,7 +327,7 @@ struct hierarchy *get_hierarchy(const char *c)
!hierarchies[i]->controllers[0])
return hierarchies[i];
return NULL;
continue;
}
if (string_in_list(hierarchies[i]->controllers, c))
@ -1306,8 +1306,11 @@ static bool cg_hybrid_init(void)
controller_list = cg_unified_get_controllers(cgv2_ctrl_path);
free(cgv2_ctrl_path);
if (!controller_list)
if (!controller_list) {
controller_list = cg_unified_make_empty_controller();
CGFSNG_DEBUG("No controllers are enabled for "
"delegation in the unified hierarchy\n");
}
}
new = add_hierarchy(controller_list, mountpoint, base_cgroup, type);
@ -2365,13 +2368,16 @@ static bool cgfsng_unfreeze(void *hdata)
return true;
}
static const char *cgfsng_get_cgroup(void *hdata, const char *subsystem)
static const char *cgfsng_get_cgroup(void *hdata, const char *controller)
{
struct hierarchy *h;
h = get_hierarchy(subsystem);
if (!h)
h = get_hierarchy(controller);
if (!h) {
SYSERROR("Failed to find hierarchy for controller \"%s\"",
controller ? controller : "(null)");
return NULL;
}
return h->fullcgpath ? h->fullcgpath + strlen(h->mountpoint) : NULL;
}