From ccdca2187b03decd186df13e44c57fbf1974d0a0 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 18 Sep 2015 17:54:23 -0400 Subject: [PATCH] cgroup: relocate cgroup_populate_dir() Move it upwards so that it's right below cgroup_clear_dir() and the forward declaration is unnecessary. Signed-off-by: Tejun Heo Cc: Li Zefan Cc: Johannes Weiner --- kernel/cgroup.c | 63 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 31 insertions(+), 32 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 5031edc6f077..c38c3a229d14 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1116,7 +1116,6 @@ static struct cgroup *task_cgroup_from_root(struct task_struct *task, * update of a tasks cgroup pointer by cgroup_attach_task() */ -static int cgroup_populate_dir(struct cgroup *cgrp, unsigned long subsys_mask); static struct kernfs_syscall_ops cgroup_kf_syscall_ops; static const struct file_operations proc_cgroupstats_operations; @@ -1333,6 +1332,37 @@ static void cgroup_clear_dir(struct cgroup *cgrp, unsigned long subsys_mask) } } +/** + * cgroup_populate_dir - create subsys files in a cgroup directory + * @cgrp: target cgroup + * @subsys_mask: mask of the subsystem ids whose files should be added + * + * On failure, no file is added. + */ +static int cgroup_populate_dir(struct cgroup *cgrp, unsigned long subsys_mask) +{ + struct cgroup_subsys *ss; + int i, ret = 0; + + /* process cftsets of each subsystem */ + for_each_subsys(ss, i) { + struct cftype *cfts; + + if (!(subsys_mask & (1 << i))) + continue; + + list_for_each_entry(cfts, &ss->cfts, node) { + ret = cgroup_addrm_files(cgrp, cfts, true); + if (ret < 0) + goto err; + } + } + return 0; +err: + cgroup_clear_dir(cgrp, subsys_mask); + return ret; +} + static int rebind_subsystems(struct cgroup_root *dst_root, unsigned long ss_mask) { @@ -4438,37 +4468,6 @@ static struct cftype cgroup_legacy_base_files[] = { { } /* terminate */ }; -/** - * cgroup_populate_dir - create subsys files in a cgroup directory - * @cgrp: target cgroup - * @subsys_mask: mask of the subsystem ids whose files should be added - * - * On failure, no file is added. - */ -static int cgroup_populate_dir(struct cgroup *cgrp, unsigned long subsys_mask) -{ - struct cgroup_subsys *ss; - int i, ret = 0; - - /* process cftsets of each subsystem */ - for_each_subsys(ss, i) { - struct cftype *cfts; - - if (!(subsys_mask & (1 << i))) - continue; - - list_for_each_entry(cfts, &ss->cfts, node) { - ret = cgroup_addrm_files(cgrp, cfts, true); - if (ret < 0) - goto err; - } - } - return 0; -err: - cgroup_clear_dir(cgrp, subsys_mask); - return ret; -} - /* * css destruction is four-stage process. * -- 2.11.0