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2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390 
 kernel/include/linux/cgroup-defs.h
....@@ -21,7 +21,6 @@
2121 #include <linux/workqueue.h>
2222 #include <linux/bpf-cgroup.h>
2323 #include <linux/psi_types.h>
24
-#include <linux/swork.h>
2524 
2625 #ifdef CONFIG_CGROUPS
2726 
....@@ -90,6 +89,16 @@
9089 	 * Enable cpuset controller in v1 cgroup to use v2 behavior.
9190 	 */
9291 	CGRP_ROOT_CPUSET_V2_MODE = (1 << 4),
92
+
93
+	/*
94
+	 * Enable legacy local memory.events.
95
+	 */
96
+	CGRP_ROOT_MEMORY_LOCAL_EVENTS = (1 << 5),
97
+
98
+	/*
99
+	 * Enable recursive subtree protection
100
+	 */
101
+	CGRP_ROOT_MEMORY_RECURSIVE_PROT = (1 << 6),
93102 };
94103 
95104 /* cftype->flags */
....@@ -100,6 +109,7 @@
100109 
101110 	CFTYPE_NO_PREFIX	= (1 << 3),	/* (DON'T USE FOR NEW FILES) no subsys prefix */
102111 	CFTYPE_WORLD_WRITABLE	= (1 << 4),	/* (DON'T USE FOR NEW FILES) S_IWUGO */
112
+	CFTYPE_DEBUG		= (1 << 5),	/* create when cgroup_debug */
103113 	CFTYPE_PRESSURE		= (1 << 6),	/* only if pressure feature is enabled */
104114 
105115 	/* internal flags, do not use outside cgroup core proper */
....@@ -167,7 +177,6 @@
167177 
168178 	/* percpu_ref killing and RCU release */
169179 	struct work_struct destroy_work;
170
-	struct swork_event destroy_swork;
171180 	struct rcu_work destroy_rwork;
172181 
173182 	/*
....@@ -273,6 +282,13 @@
273282 	struct rcu_head rcu_head;
274283 };
275284 
285
+struct ext_css_set {
286
+	struct css_set cset;
287
+
288
+	struct list_head mg_src_preload_node;
289
+	struct list_head mg_dst_preload_node;
290
+};
291
+
276292 struct cgroup_base_stat {
277293 	struct task_cputime cputime;
278294 };
....@@ -350,16 +366,6 @@
350366 	struct cgroup_subsys_state self;
351367 
352368 	unsigned long flags;		/* "unsigned long" so bitops work */
353
-
354
-	/*
355
-	 * idr allocated in-hierarchy ID.
356
-	 *
357
-	 * ID 0 is not used, the ID of the root cgroup is always 1, and a
358
-	 * new cgroup will be assigned with a smallest available ID.
359
-	 *
360
-	 * Allocating/Removing ID must be protected by cgroup_mutex.
361
-	 */
362
-	int id;
363369 
364370 	/*
365371 	 * The depth this cgroup is at.  The root is at depth zero and each
....@@ -455,7 +461,7 @@
455461 	struct list_head rstat_css_list;
456462 
457463 	/* cgroup basic resource statistics */
458
-	struct cgroup_base_stat pending_bstat;	/* pending from children */
464
+	struct cgroup_base_stat last_bstat;
459465 	struct cgroup_base_stat bstat;
460466 	struct prev_cputime prev_cputime;	/* for printing out cputime */
461467 
....@@ -484,12 +490,8 @@
484490 	/* Used to store internal freezer state */
485491 	struct cgroup_freezer_state freezer;
486492 
487
-	ANDROID_KABI_RESERVE(1);
488
-	ANDROID_KABI_RESERVE(2);
489
-	ANDROID_KABI_RESERVE(3);
490
-
491493 	/* ids of the ancestors at each level including self */
492
-	int ancestor_ids[];
494
+	u64 ancestor_ids[];
493495 };
494496 
495497 /*
....@@ -510,7 +512,7 @@
510512 	struct cgroup cgrp;
511513 
512514 	/* for cgrp->ancestor_ids[0] */
513
-	int cgrp_ancestor_id_storage;
515
+	u64 cgrp_ancestor_id_storage;
514516 
515517 	/* Number of cgroups in the hierarchy, used only for /proc/cgroups */
516518 	atomic_t nr_cgrps;
....@@ -520,9 +522,6 @@
520522 
521523 	/* Hierarchy-specific flags */
522524 	unsigned int flags;
523
-
524
-	/* IDs for cgroups in this hierarchy */
525
-	struct idr cgroup_idr;
526525 
527526 	/* The path to use for release notifications. */
528527 	char release_agent_path[PATH_MAX];
....@@ -625,7 +624,7 @@
625624 
626625 /*
627626  * Control Group subsystem type.
628
- * See Documentation/cgroup-v1/cgroups.txt for details
627
+ * See Documentation/admin-guide/cgroup-v1/cgroups.rst for details
629628  */
630629 struct cgroup_subsys {
631630 	struct cgroup_subsys_state *(*css_alloc)(struct cgroup_subsys_state *parent_css);
....@@ -642,8 +641,9 @@
642641 	void (*cancel_attach)(struct cgroup_taskset *tset);
643642 	void (*attach)(struct cgroup_taskset *tset);
644643 	void (*post_attach)(void);
645
-	int (*can_fork)(struct task_struct *task);
646
-	void (*cancel_fork)(struct task_struct *task);
644
+	int (*can_fork)(struct task_struct *task,
645
+			struct css_set *cset);
646
+	void (*cancel_fork)(struct task_struct *task, struct css_set *cset);
647647 	void (*fork)(struct task_struct *task);
648648 	void (*exit)(struct task_struct *task);
649649 	void (*release)(struct task_struct *task);
....@@ -798,13 +798,9 @@
798798 	union {
799799 #ifdef __LITTLE_ENDIAN
800800 		struct {
801
-#ifdef __GENKSYMS__
802
-			u8	is_data;
803
-#else
804801 			u8	is_data : 1;
805802 			u8	no_refcnt : 1;
806803 			u8	unused : 6;
807
-#endif
808804 			u8	padding;
809805 			u16	prioidx;
810806 			u32	classid;