mirror of
https://github.com/checkpoint-restore/criu.git
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8b04551c48
Patch restores freezer cgroup state between finalize_restore stages. It should be done after first stage because we cannot unmap restorer blob from frozen process, and before second stage because we must freeze processes before they continue run. We also need to move fini_cgroup between these stages to provide freezer cgroup state restorer access to cgroup mount directories. Error handlers contains fini_cgroup, so we are sure that fini_cgroup call won't be missed. Patch restores state only for one freezer cgroup from --freeze-cgroup option, not all states from whole hierarchy, because CRIU supports checkpoint from freezer cgroup hierarchy only with THAWED state, except root cgroup from --freeze-cgroup option. Signed-off-by: Evgeniy Akimov <geka666@gmail.com> Signed-off-by: Eugene Batalov <eabatalov89@gmail.com> Acked-by: Andrew Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#ifndef __CR_CGROUP_H__
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#define __CR_CGROUP_H__
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#include "asm/int.h"
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struct pstree_item;
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extern u32 root_cg_set;
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int dump_task_cgroup(struct pstree_item *, u32 *);
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int dump_cgroups(void);
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int prepare_task_cgroup(struct pstree_item *);
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int prepare_cgroup(void);
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/* Restore things like cpu_limit in known cgroups. */
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int prepare_cgroup_properties(void);
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int restore_freezer_state(void);
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void fini_cgroup(void);
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struct cg_controller;
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struct cgroup_prop {
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char *name;
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char *value;
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struct list_head list;
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};
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/* This describes a particular cgroup path, e.g. the '/lxc/u1' part of
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* 'blkio/lxc/u1' and any properties it has.
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*/
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struct cgroup_dir {
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char *path;
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struct list_head properties;
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unsigned int n_properties;
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/* this is how children are linked together */
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struct list_head siblings;
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/* more cgroup_dirs */
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struct list_head children;
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unsigned int n_children;
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};
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/* This describes a particular cgroup controller, e.g. blkio or cpuset.
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* The heads are subdirectories organized in their tree format.
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*/
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struct cg_controller {
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unsigned int n_controllers;
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char **controllers;
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/* cgroup_dirs */
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struct list_head heads;
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unsigned int n_heads;
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/* for cgroup list in cgroup.c */
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struct list_head l;
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};
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struct cg_controller *new_controller(const char *name);
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/* parse all global cgroup information into structures */
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int parse_cg_info(void);
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int new_cg_root_add(char *controller, char *newroot);
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#endif /* __CR_CGROUP_H__ */
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