Handle reading /proc/self/cpuset when cpusets isn't mounted.
Signed-off-by: Paul Menage <menage@xxxxxxxxxx>
---
kernel/cgroup.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff -puN kernel/cgroup.c~task-cgroupsv11-basic-task-cgroup-framework-fix kernel/cgroup.c
--- a/kernel/cgroup.c~task-cgroupsv11-basic-task-cgroup-framework-fix
+++ a/kernel/cgroup.c
@@ -683,6 +683,15 @@ int cgroup_path(const struct containe
{
char *start;
+ if (cont == dummytop) {
+ /*
+ * Inactive subsystems have no dentry for their root
+ * cgroup
+ */
+ strcpy(buf, "/");
+ return 0;
+ }
+
start = buf + buflen;
*--start = '\0';
_
--
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