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sysfs: Create mountpoints with sysfs_create_mount_point

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This allows for better documentation in the code and
it allows for a simpler and fully correct version of
fs_fully_visible to be written.

The mount points converted and their filesystems are:
/sys/hypervisor/s390/       s390_hypfs
/sys/kernel/config/         configfs
/sys/kernel/debug/          debugfs
/sys/firmware/efi/efivars/  efivarfs
/sys/fs/fuse/connections/   fusectl
/sys/fs/pstore/             pstore
/sys/kernel/tracing/        tracefs
/sys/fs/cgroup/             cgroup
/sys/kernel/security/       securityfs
/sys/fs/selinux/            selinuxfs
/sys/fs/smackfs/            smackfs

Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2015-05-13 17:35:41 -05:00
parent 87d2846fcf
commit f9bb48825a
11 changed files with 40 additions and 65 deletions
Download patch file Download diff file Expand all files Collapse all files

10
kernel/cgroup.c
View file

@ -1924,8 +1924,6 @@ static struct file_system_type cgroup_fs_type = {
.kill_sb = cgroup_kill_sb,
};
static struct kobject *cgroup_kobj;
/**
* task_cgroup_path - cgroup path of a task in the first cgroup hierarchy
* @task: target task
@ -5044,13 +5042,13 @@ int __init cgroup_init(void)
ss->bind(init_css_set.subsys[ssid]);
}
cgroup_kobj = kobject_create_and_add("cgroup", fs_kobj);
if (!cgroup_kobj)
return -ENOMEM;
err = sysfs_create_mount_point(fs_kobj, "cgroup");
if (err)
return err;
err = register_filesystem(&cgroup_fs_type);
if (err < 0) {
kobject_put(cgroup_kobj);
sysfs_remove_mount_point(fs_kobj, "cgroup");
return err;
}