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Commit d62beb7f authored by Tejun Heo's avatar Tejun Heo
Browse files

cgroup: rename functions for consistency 



Now that v1 functions are separated out, rename some functions for
consistency.

 cgroup_dfl_base_files		-> cgroup_base_files
 cgroup_legacy_base_files	-> cgroup1_base_files
 cgroup_ssid_no_v1()		-> cgroup1_ssid_disabled()
 cgroup_pidlist_destroy_all	-> cgroup1_pidlist_destroy_all()
 cgroup_release_agent()		-> cgroup1_release_agent()
 check_for_release()		-> cgroup1_check_for_release()

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Acked-by: default avatarAcked-by: Zefan Li <lizefan@huawei.com>
parent 1592c9b2

kernel/cgroup/cgroup-internal.h

+5 −5
Original line number Diff line number Diff line
@@ -110,14 +110,14 @@ int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node, 
/*

 * cgroup-v1.c

 */

extern struct cftype cgroup_legacy_base_files[];

extern struct cftype cgroup1_base_files[];

extern const struct file_operations proc_cgroupstats_operations;

extern struct kernfs_syscall_ops cgroup1_kf_syscall_ops;



bool cgroup_ssid_no_v1(int ssid);

void cgroup_pidlist_destroy_all(struct cgroup *cgrp);

void cgroup_release_agent(struct work_struct *work);

void check_for_release(struct cgroup *cgrp);

bool cgroup1_ssid_disabled(int ssid);

void cgroup1_pidlist_destroy_all(struct cgroup *cgrp);

void cgroup1_release_agent(struct work_struct *work);

void cgroup1_check_for_release(struct cgroup *cgrp);

struct dentry *cgroup1_mount(struct file_system_type *fs_type, int flags,

			     void *data, unsigned long magic,

			     struct cgroup_namespace *ns);

kernel/cgroup/cgroup-v1.c

+7 −7
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ static struct workqueue_struct *cgroup_pidlist_destroy_wq; 
 */

static DEFINE_SPINLOCK(release_agent_path_lock);



bool cgroup_ssid_no_v1(int ssid)

bool cgroup1_ssid_disabled(int ssid)

{

	return cgroup_no_v1_mask & (1 << ssid);

}
@@ -201,7 +201,7 @@ static void pidlist_free(void *p) 
 * Used to destroy all pidlists lingering waiting for destroy timer.  None

 * should be left afterwards.

 */

void cgroup_pidlist_destroy_all(struct cgroup *cgrp)

void cgroup1_pidlist_destroy_all(struct cgroup *cgrp)

{

	struct cgroup_pidlist *l, *tmp_l;
@@ -585,7 +585,7 @@ static int cgroup_clone_children_write(struct cgroup_subsys_state *css, 
}



/* cgroup core interface files for the legacy hierarchies */

struct cftype cgroup_legacy_base_files[] = {

struct cftype cgroup1_base_files[] = {

	{

		.name = "cgroup.procs",

		.seq_start = cgroup_pidlist_start,
@@ -729,7 +729,7 @@ int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) 
	return 0;

}



void check_for_release(struct cgroup *cgrp)

void cgroup1_check_for_release(struct cgroup *cgrp)

{

	if (notify_on_release(cgrp) && !cgroup_is_populated(cgrp) &&

	    !css_has_online_children(&cgrp->self) && !cgroup_is_dead(cgrp))
@@ -759,7 +759,7 @@ void check_for_release(struct cgroup *cgrp) 
 * this routine has no use for the exit status of the release agent

 * task, so no sense holding our caller up for that.

 */

void cgroup_release_agent(struct work_struct *work)

void cgroup1_release_agent(struct work_struct *work)

{

	struct cgroup *cgrp =

		container_of(work, struct cgroup, release_agent_work);
@@ -946,7 +946,7 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts) 
				continue;

			if (!cgroup_ssid_enabled(i))

				continue;

			if (cgroup_ssid_no_v1(i))

			if (cgroup1_ssid_disabled(i))

				continue;



			/* Mutually exclusive option 'all' + subsystem name */
@@ -968,7 +968,7 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts) 
	 */

	if (all_ss || (!one_ss && !opts->none && !opts->name))

		for_each_subsys(ss, i)

			if (cgroup_ssid_enabled(i) && !cgroup_ssid_no_v1(i))

			if (cgroup_ssid_enabled(i) && !cgroup1_ssid_disabled(i))

				opts->subsys_mask |= (1 << i);



	/*

kernel/cgroup/cgroup.c

+11 −11
Original line number Diff line number Diff line
@@ -199,7 +199,7 @@ struct cgroup_namespace init_cgroup_ns = { 
static u16 have_canfork_callback __read_mostly;



static struct file_system_type cgroup2_fs_type;

static struct cftype cgroup_dfl_base_files[];

static struct cftype cgroup_base_files[];



static int cgroup_apply_control(struct cgroup *cgrp);

static void cgroup_finalize_control(struct cgroup *cgrp, int ret);
@@ -609,7 +609,7 @@ static void cgroup_update_populated(struct cgroup *cgrp, bool populated) 
		if (!trigger)

			break;



		check_for_release(cgrp);

		cgroup1_check_for_release(cgrp);

		cgroup_file_notify(&cgrp->events_file);



		cgrp = cgroup_parent(cgrp);
@@ -1440,9 +1440,9 @@ static int css_populate_dir(struct cgroup_subsys_state *css) 


	if (!css->ss) {

		if (cgroup_on_dfl(cgrp))

			cfts = cgroup_dfl_base_files;

			cfts = cgroup_base_files;

		else

			cfts = cgroup_legacy_base_files;

			cfts = cgroup1_base_files;



		return cgroup_addrm_files(&cgrp->self, cgrp, cfts, true);

	}
@@ -1645,7 +1645,7 @@ static void init_cgroup_housekeeping(struct cgroup *cgrp) 
		INIT_LIST_HEAD(&cgrp->e_csets[ssid]);



	init_waitqueue_head(&cgrp->offline_waitq);

	INIT_WORK(&cgrp->release_agent_work, cgroup_release_agent);

	INIT_WORK(&cgrp->release_agent_work, cgroup1_release_agent);

}



void init_cgroup_root(struct cgroup_root *root, struct cgroup_sb_opts *opts)
@@ -3836,7 +3836,7 @@ static int cgroup_procs_show(struct seq_file *s, void *v) 
}



/* cgroup core interface files for the default hierarchy */

static struct cftype cgroup_dfl_base_files[] = {

static struct cftype cgroup_base_files[] = {

	{

		.name = "cgroup.procs",

		.file_offset = offsetof(struct cgroup, procs_file),
@@ -3909,7 +3909,7 @@ static void css_free_work_fn(struct work_struct *work) 
	} else {

		/* cgroup free path */

		atomic_dec(&cgrp->root->nr_cgrps);

		cgroup_pidlist_destroy_all(cgrp);

		cgroup1_pidlist_destroy_all(cgrp);

		cancel_work_sync(&cgrp->release_agent_work);



		if (cgroup_parent(cgrp)) {
@@ -4411,7 +4411,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) 
	 */

	kernfs_remove(cgrp->kn);



	check_for_release(cgroup_parent(cgrp));

	cgroup1_check_for_release(cgroup_parent(cgrp));



	/* put the base reference */

	percpu_ref_kill(&cgrp->self.refcnt);
@@ -4548,8 +4548,8 @@ int __init cgroup_init(void) 


	BUILD_BUG_ON(CGROUP_SUBSYS_COUNT > 16);

	BUG_ON(percpu_init_rwsem(&cgroup_threadgroup_rwsem));

	BUG_ON(cgroup_init_cftypes(NULL, cgroup_dfl_base_files));

	BUG_ON(cgroup_init_cftypes(NULL, cgroup_legacy_base_files));

	BUG_ON(cgroup_init_cftypes(NULL, cgroup_base_files));

	BUG_ON(cgroup_init_cftypes(NULL, cgroup1_base_files));



	/*

	 * The latency of the synchronize_sched() is too high for cgroups,
@@ -4599,7 +4599,7 @@ int __init cgroup_init(void) 
			continue;

		}



		if (cgroup_ssid_no_v1(ssid))

		if (cgroup1_ssid_disabled(ssid))

			printk(KERN_INFO "Disabling %s control group subsystem in v1 mounts\n",

			       ss->name);