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authorTejun Heo <tj@kernel.org>2015-08-18 14:55:30 -0700
committerJens Axboe <axboe@fb.com>2015-08-18 15:49:18 -0700
commit880f50e228f80626dff6327a6e281e40286f5228 (patch)
tree6cd8143cf1376e65c627138e07cd40debdc17e5d /block/blk-cgroup.c
parentc165b3e3c7bb68c2ed55a5ac2623f030d01d9567 (diff)
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blkcg: mark existing cftypes as legacy
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 <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index fc197ea4c992..429726bed560 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -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);