From 829fdb50004de78f1bd187e428d72edcd9721cb8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 1 Apr 2012 14:38:43 -0700 Subject: blkcg: export conf/stat helpers to prepare for reorganization conf/stat handling is about to be moved to policy implementation from blkcg core. Export conf/stat helpers from blkcg core so that blk-throttle and cfq-iosched can use them. Signed-off-by: Tejun Heo --- block/blk-cgroup.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'block/blk-cgroup.h') diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 108ffbf0d184..361ecfa4d28d 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -15,6 +15,7 @@ #include #include +#include enum blkio_policy_id { BLKIO_POLICY_PROP = 0, /* Proportional Bandwidth division */ @@ -193,6 +194,32 @@ extern void blkg_destroy_all(struct request_queue *q, bool destroy_root); extern void update_root_blkg_pd(struct request_queue *q, enum blkio_policy_id plid); +void blkcg_print_blkgs(struct seq_file *sf, struct blkio_cgroup *blkcg, + u64 (*prfill)(struct seq_file *, struct blkg_policy_data *, int), + int pol, int data, bool show_total); +u64 __blkg_prfill_u64(struct seq_file *sf, struct blkg_policy_data *pd, u64 v); +u64 __blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd, + const struct blkg_rwstat *rwstat); +int blkcg_print_stat(struct cgroup *cgrp, struct cftype *cft, + struct seq_file *sf); +int blkcg_print_rwstat(struct cgroup *cgrp, struct cftype *cft, + struct seq_file *sf); +int blkcg_print_cpu_stat(struct cgroup *cgrp, struct cftype *cft, + struct seq_file *sf); +int blkcg_print_cpu_rwstat(struct cgroup *cgrp, struct cftype *cft, + struct seq_file *sf); + +struct blkg_conf_ctx { + struct gendisk *disk; + struct blkio_group *blkg; + u64 v; +}; + +int blkg_conf_prep(struct blkio_cgroup *blkcg, const char *input, + struct blkg_conf_ctx *ctx); +void blkg_conf_finish(struct blkg_conf_ctx *ctx); + + /** * blkg_to_pdata - get policy private data * @blkg: blkg of interest -- cgit v1.2.1