From 182446d087906de40e514573a92a97b203695f71 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 8 Aug 2013 20:11:24 -0400 Subject: cgroup: pass around cgroup_subsys_state instead of cgroup in file methods cgroup is currently in the process of transitioning to using struct cgroup_subsys_state * as the primary handle instead of struct cgroup. Please see the previous commit which converts the subsystem methods for rationale. This patch converts all cftype file operations to take @css instead of @cgroup. cftypes for the cgroup core files don't have their subsytem pointer set. These will automatically use the dummy_css added by the previous patch and can be converted the same way. Most subsystem conversions are straight forwards but there are some interesting ones. * freezer: update_if_frozen() is also converted to take @css instead of @cgroup for consistency. This will make the code look simpler too once iterators are converted to use css. * memory/vmpressure: mem_cgroup_from_css() needs to be exported to vmpressure while mem_cgroup_from_cont() can be made static. Updated accordingly. * cpu: cgroup_tg() doesn't have any user left. Removed. * cpuacct: cgroup_ca() doesn't have any user left. Removed. * hugetlb: hugetlb_cgroup_form_cgroup() doesn't have any user left. Removed. * net_cls: cgrp_cls_state() doesn't have any user left. Removed. Signed-off-by: Tejun Heo Acked-by: Li Zefan Acked-by: Michal Hocko Acked-by: Vivek Goyal Acked-by: Aristeu Rozanski Acked-by: Daniel Wagner Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Johannes Weiner Cc: Balbir Singh Cc: Matt Helsley Cc: Jens Axboe Cc: Steven Rostedt --- block/blk-throttle.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) (limited to 'block/blk-throttle.c') diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 08a32df..88bcfb6 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -1293,10 +1293,10 @@ static u64 tg_prfill_cpu_rwstat(struct seq_file *sf, return __blkg_prfill_rwstat(sf, pd, &rwstat); } -static int tg_print_cpu_rwstat(struct cgroup *cgrp, struct cftype *cft, - struct seq_file *sf) +static int tg_print_cpu_rwstat(struct cgroup_subsys_state *css, + struct cftype *cft, struct seq_file *sf) { - struct blkcg *blkcg = cgroup_to_blkcg(cgrp); + struct blkcg *blkcg = css_to_blkcg(css); blkcg_print_blkgs(sf, blkcg, tg_prfill_cpu_rwstat, &blkcg_policy_throtl, cft->private, true); @@ -1325,26 +1325,26 @@ static u64 tg_prfill_conf_uint(struct seq_file *sf, struct blkg_policy_data *pd, return __blkg_prfill_u64(sf, pd, v); } -static int tg_print_conf_u64(struct cgroup *cgrp, struct cftype *cft, - struct seq_file *sf) +static int tg_print_conf_u64(struct cgroup_subsys_state *css, + struct cftype *cft, struct seq_file *sf) { - blkcg_print_blkgs(sf, cgroup_to_blkcg(cgrp), tg_prfill_conf_u64, + blkcg_print_blkgs(sf, css_to_blkcg(css), tg_prfill_conf_u64, &blkcg_policy_throtl, cft->private, false); return 0; } -static int tg_print_conf_uint(struct cgroup *cgrp, struct cftype *cft, - struct seq_file *sf) +static int tg_print_conf_uint(struct cgroup_subsys_state *css, + struct cftype *cft, struct seq_file *sf) { - blkcg_print_blkgs(sf, cgroup_to_blkcg(cgrp), tg_prfill_conf_uint, + blkcg_print_blkgs(sf, css_to_blkcg(css), tg_prfill_conf_uint, &blkcg_policy_throtl, cft->private, false); return 0; } -static int tg_set_conf(struct cgroup *cgrp, struct cftype *cft, const char *buf, - bool is_u64) +static int tg_set_conf(struct cgroup_subsys_state *css, struct cftype *cft, + const char *buf, bool is_u64) { - struct blkcg *blkcg = cgroup_to_blkcg(cgrp); + struct blkcg *blkcg = css_to_blkcg(css); struct blkg_conf_ctx ctx; struct throtl_grp *tg; struct throtl_service_queue *sq; @@ -1403,16 +1403,16 @@ static int tg_set_conf(struct cgroup *cgrp, struct cftype *cft, const char *buf, return 0; } -static int tg_set_conf_u64(struct cgroup *cgrp, struct cftype *cft, +static int tg_set_conf_u64(struct cgroup_subsys_state *css, struct cftype *cft, const char *buf) { - return tg_set_conf(cgrp, cft, buf, true); + return tg_set_conf(css, cft, buf, true); } -static int tg_set_conf_uint(struct cgroup *cgrp, struct cftype *cft, +static int tg_set_conf_uint(struct cgroup_subsys_state *css, struct cftype *cft, const char *buf) { - return tg_set_conf(cgrp, cft, buf, false); + return tg_set_conf(css, cft, buf, false); } static struct cftype throtl_files[] = { -- cgit v1.1