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Diffstat (limited to 'kernel/cgroup/cgroup.c')
-rw-r--r--kernel/cgroup/cgroup.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 2319946715e0..935e8121b21e 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -248,6 +248,12 @@ static int cgroup_addrm_files(struct cgroup_subsys_state *css,
struct cgroup *cgrp, struct cftype cfts[],
bool is_add);
+#ifdef CONFIG_DEBUG_CGROUP_REF
+#define CGROUP_REF_FN_ATTRS noinline
+#define CGROUP_REF_EXPORT(fn) EXPORT_SYMBOL_GPL(fn);
+#include <linux/cgroup_refcnt.h>
+#endif
+
/**
* cgroup_ssid_enabled - cgroup subsys enabled test by subsys ID
* @ssid: subsys ID of interest
@@ -2860,14 +2866,12 @@ int cgroup_migrate(struct task_struct *leader, bool threadgroup,
* take an rcu_read_lock.
*/
spin_lock_irq(&css_set_lock);
- rcu_read_lock();
task = leader;
do {
cgroup_migrate_add_task(task, mgctx);
if (!threadgroup)
break;
} while_each_thread(leader, task);
- rcu_read_unlock();
spin_unlock_irq(&css_set_lock);
return cgroup_migrate_execute(mgctx);
@@ -5061,7 +5065,7 @@ static int cgroup_may_write(const struct cgroup *cgrp, struct super_block *sb)
if (!inode)
return -ENOMEM;
- ret = inode_permission(&init_user_ns, inode, MAY_WRITE);
+ ret = inode_permission(&nop_mnt_idmap, inode, MAY_WRITE);
iput(inode);
return ret;
}
@@ -5349,6 +5353,7 @@ static void css_free_rwork_fn(struct work_struct *work)
atomic_dec(&cgrp->root->nr_cgrps);
cgroup1_pidlist_destroy_all(cgrp);
cancel_work_sync(&cgrp->release_agent_work);
+ bpf_cgrp_storage_free(cgrp);
if (cgroup_parent(cgrp)) {
/*