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#ifndef __NET_PSAMPLE_H
#define __NET_PSAMPLE_H

#include <uapi/linux/psample.h>
#include <linux/module.h>
#include <linux/list.h>

struct psample_group {
	struct list_head list;
	struct net *net;
	u32 group_num;
	u32 refcount;
	u32 seq;
};

struct psample_group *psample_group_get(struct net *net, u32 group_num);
void psample_group_put(struct psample_group *group);

#if IS_ENABLED(CONFIG_PSAMPLE)

void psample_sample_packet(struct psample_group *group, struct sk_buff *skb,
			   u32 trunc_size, int in_ifindex, int out_ifindex,
			   u32 sample_rate);

#else

static inline void psample_sample_packet(struct psample_group *group,
					 struct sk_buff *skb, u32 trunc_size,
					 int in_ifindex, int out_ifindex,
					 u32 sample_rate)
{
}

#endif

#endif /* __NET_PSAMPLE_H */
th() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'include/crypto/drbg.h')