cgroup: move struct cgroup_pidlist out from the header file (24528255) · Commits · e / devices / android_kernel_teracube_2e

include/linux/cgroup.h

+0 −32

Original line number	Diff line number	Diff line
		@@ -160,38 +160,6 @@ enum {
		CGRP_CLONE_CHILDREN,
		};

		/* which pidlist file are we talking about? */
		enum cgroup_filetype {
		CGROUP_FILE_PROCS,
		CGROUP_FILE_TASKS,
		};

		/*
		* A pidlist is a list of pids that virtually represents the contents of one
		* of the cgroup files ("procs" or "tasks"). We keep a list of such pidlists,
		* a pair (one each for procs, tasks) for each pid namespace that's relevant
		* to the cgroup.
		*/
		struct cgroup_pidlist {
		/*
		* used to find which pidlist is wanted. doesn't change as long as
		* this particular list stays in the list.
		*/
		struct { enum cgroup_filetype type; struct pid_namespace *ns; } key;
		/* array of xids */
		pid_t *list;
		/* how many elements the above list has */
		int length;
		/* how many files are using the current array */
		int use_count;
		/* each of these stored in a list by its cgroup */
		struct list_head links;
		/* pointer to the cgroup we belong to, for list removal purposes */
		struct cgroup *owner;
		/* protects the other fields */
		struct rw_semaphore mutex;
		};

		struct cgroup {
		unsigned long flags; /* "unsigned long" so bitops work */

+32 −0

Original line number	Diff line number	Diff line
		@@ -3043,6 +3043,38 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
		*
		*/

		/* which pidlist file are we talking about? */
		enum cgroup_filetype {
		CGROUP_FILE_PROCS,
		CGROUP_FILE_TASKS,
		};

		/*
		* A pidlist is a list of pids that virtually represents the contents of one
		* of the cgroup files ("procs" or "tasks"). We keep a list of such pidlists,
		* a pair (one each for procs, tasks) for each pid namespace that's relevant
		* to the cgroup.
		*/
		struct cgroup_pidlist {
		/*
		* used to find which pidlist is wanted. doesn't change as long as
		* this particular list stays in the list.
		*/
		struct { enum cgroup_filetype type; struct pid_namespace *ns; } key;
		/* array of xids */
		pid_t *list;
		/* how many elements the above list has */
		int length;
		/* how many files are using the current array */
		int use_count;
		/* each of these stored in a list by its cgroup */
		struct list_head links;
		/* pointer to the cgroup we belong to, for list removal purposes */
		struct cgroup *owner;
		/* protects the other fields */
		struct rw_semaphore mutex;
		};

		/*
		* The following two functions "fix" the issue where there are more pids
		* than kmalloc will give memory for; in such cases, we use vmalloc/vfree.