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cgroup: unexport cgroup_css() and remove __file_cft()

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Now that cgroup_event is made memcg specific, the temporarily exported
functions are no longer necessary.  Unexport cgroup_css() and remove
__file_cft() which doesn't have any user left.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
This commit is contained in:
Tejun Heo 2013-11-22 18:20:44 -05:00
parent 3bc942f372
commit b36824c75c
2 changed files with 2 additions and 17 deletions
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5
include/linux/cgroup.h
View File

@ -883,11 +883,6 @@ unsigned short css_id(struct cgroup_subsys_state *css);
struct cgroup_subsys_state *css_from_dir(struct dentry *dentry,
struct cgroup_subsys *ss);
/* XXX: temporary */
struct cgroup_subsys_state *cgroup_css(struct cgroup *cgrp,
struct cgroup_subsys *ss);
struct cftype *__file_cft(struct file *file);
#else /* !CONFIG_CGROUPS */
static inline int cgroup_init_early(void) { return 0; }

14
kernel/cgroup.c
View File

@ -202,8 +202,8 @@ static int cgroup_addrm_files(struct cgroup *cgrp, struct cftype cfts[],
* keep accessing it outside the said locks. This function may return
* %NULL if @cgrp doesn't have @subsys_id enabled.
*/
struct cgroup_subsys_state *cgroup_css(struct cgroup *cgrp,
struct cgroup_subsys *ss)
static struct cgroup_subsys_state *cgroup_css(struct cgroup *cgrp,
struct cgroup_subsys *ss)
{
if (ss)
return rcu_dereference_check(cgrp->subsys[ss->subsys_id],
@ -2625,16 +2625,6 @@ static const struct inode_operations cgroup_dir_inode_operations = {
.removexattr = cgroup_removexattr,
};
/*
* Check if a file is a control file
*/
struct cftype *__file_cft(struct file *file)
{
if (file_inode(file)->i_fop != &cgroup_file_operations)
return ERR_PTR(-EINVAL);
return __d_cft(file->f_dentry);
}
static int cgroup_create_file(struct dentry *dentry, umode_t mode,
struct super_block *sb)
{