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blkcg: mark existing cftypes as legacy

Browse source 
blkcg is about to grow interface for the unified hierarchy.  Add
legacy to existing cftypes.

* blkcg_policy->cftypes -> blkcg_policy->legacy_cftypes
* blk-cgroup.c:blkcg_files -> blkcg_legacy_files
* cfq-iosched.c:cfq_blkcg_files -> cfq_blkcg_legacy_files
* blk-throttle.c:throtl_files -> throtl_legacy_files

Pure renames.  No functional change.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2015-08-18 14:55:30 -07:00 • committed by Jens Axboe
commit 880f50e228
4 changed files with 11 additions and 11 deletions
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12
block/blk-cgroup.c
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@ -847,7 +847,7 @@ void blkg_conf_finish(struct blkg_conf_ctx *ctx)
}
EXPORT_SYMBOL_GPL(blkg_conf_finish);
struct cftype blkcg_files[] = {
struct cftype blkcg_legacy_files[] = {
{
.name = "reset_stats",
.write_u64 = blkcg_reset_stats,
@ -1094,7 +1094,7 @@ struct cgroup_subsys io_cgrp_subsys = {
.css_offline = blkcg_css_offline,
.css_free = blkcg_css_free,
.can_attach = blkcg_can_attach,
.legacy_cftypes = blkcg_files,
.legacy_cftypes = blkcg_legacy_files,
.legacy_name = "blkio",
#ifdef CONFIG_MEMCG
/*
@ -1266,9 +1266,9 @@ int blkcg_policy_register(struct blkcg_policy *pol)
mutex_unlock(&blkcg_pol_mutex);
/* everything is in place, add intf files for the new policy */
if (pol->cftypes)
if (pol->legacy_cftypes)
WARN_ON(cgroup_add_legacy_cftypes(&io_cgrp_subsys,
pol->cftypes));
pol->legacy_cftypes));
mutex_unlock(&blkcg_pol_register_mutex);
return 0;
@ -1305,8 +1305,8 @@ void blkcg_policy_unregister(struct blkcg_policy *pol)
goto out_unlock;
/* kill the intf files first */
if (pol->cftypes)
cgroup_rm_cftypes(pol->cftypes);
if (pol->legacy_cftypes)
cgroup_rm_cftypes(pol->legacy_cftypes);
/* remove cpds and unregister */
mutex_lock(&blkcg_pol_mutex);