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authorTejun Heo <tj@kernel.org>2013-04-14 20:15:25 -0700
committerTejun Heo <tj@kernel.org>2013-04-14 20:15:25 -0700
commit25a7e6848db76e22677aff202d9c4ef3503be15b (patch)
treee3f944266f4a6ded61ce5d88a5c2c9c33794c366 /kernel
parent9343862945fdd3dd5cb7648bb24cabe40faa9ad9 (diff)
move cgroupfs_root to include/linux/cgroup.h
While controllers shouldn't be accessing cgroupfs_root directly, it being hidden inside kern/cgroup.c makes somethings pretty silly. This makes routing hierarchy-wide settings which need to be visible to controllers cumbersome. We're gonna add another hierarchy-wide setting which needs to be accessed from controllers. Move cgroupfs_root and its flags to the header file so that we can access root settings with inline helpers. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com> Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/cgroup.c57
1 files changed, 0 insertions, 57 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 67428d84e38..8b8eb7c168f 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -30,7 +30,6 @@
#include <linux/cred.h>
#include <linux/ctype.h>
#include <linux/errno.h>
-#include <linux/fs.h>
#include <linux/init_task.h>
#include <linux/kernel.h>
#include <linux/list.h>
@@ -104,56 +103,6 @@ static struct cgroup_subsys *subsys[CGROUP_SUBSYS_COUNT] = {
#include <linux/cgroup_subsys.h>
};
-#define MAX_CGROUP_ROOT_NAMELEN 64
-
-/*
- * A cgroupfs_root represents the root of a cgroup hierarchy,
- * and may be associated with a superblock to form an active
- * hierarchy
- */
-struct cgroupfs_root {
- struct super_block *sb;
-
- /*
- * The bitmask of subsystems intended to be attached to this
- * hierarchy
- */
- unsigned long subsys_mask;
-
- /* Unique id for this hierarchy. */
- int hierarchy_id;
-
- /* The bitmask of subsystems currently attached to this hierarchy */
- unsigned long actual_subsys_mask;
-
- /* A list running through the attached subsystems */
- struct list_head subsys_list;
-
- /* The root cgroup for this hierarchy */
- struct cgroup top_cgroup;
-
- /* Tracks how many cgroups are currently defined in hierarchy.*/
- int number_of_cgroups;
-
- /* A list running through the active hierarchies */
- struct list_head root_list;
-
- /* All cgroups on this root, cgroup_mutex protected */
- struct list_head allcg_list;
-
- /* Hierarchy-specific flags */
- unsigned long flags;
-
- /* IDs for cgroups in this hierarchy */
- struct ida cgroup_ida;
-
- /* The path to use for release notifications. */
- char release_agent_path[PATH_MAX];
-
- /* The name for this hierarchy - may be empty */
- char name[MAX_CGROUP_ROOT_NAMELEN];
-};
-
/*
* The "rootnode" hierarchy is the "dummy hierarchy", reserved for the
* subsystems that are otherwise unattached - it never has more than a
@@ -296,12 +245,6 @@ bool cgroup_is_descendant(struct cgroup *cgrp, struct cgroup *ancestor)
}
EXPORT_SYMBOL_GPL(cgroup_is_descendant);
-/* cgroupfs_root->flags */
-enum {
- CGRP_ROOT_NOPREFIX = (1 << 1), /* mounted subsystems have no named prefix */
- CGRP_ROOT_XATTR = (1 << 2), /* supports extended attributes */
-};
-
static int cgroup_is_releasable(const struct cgroup *cgrp)
{
const int bits =