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path: root/tools/perf/ui/progress.h
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#ifndef _PERF_UI_PROGRESS_H_
#define _PERF_UI_PROGRESS_H_ 1

#include <linux/types.h>

void ui_progress__finish(void);

struct ui_progress {
	const char *title;
	u64 curr, next, step, total;
};

void ui_progress__init(struct ui_progress *p, u64 total, const char *title);
void ui_progress__update(struct ui_progress *p, u64 adv);

struct ui_progress_ops {
	void (*update)(struct ui_progress *p);
	void (*finish)(void);
};

extern struct ui_progress_ops *ui_progress__ops;

#endif
d colspan='2' class='oid'>7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() 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 'net/tipc/net.c')