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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

12
arch/s390/hypfs/inode.c
View File

@@ -456,8 +456,6 @@ static const struct super_operations hypfs_s_ops = {
.show_options = hypfs_show_options,
};
static struct kobject *s390_kobj;
static int __init hypfs_init(void)
{
int rc;
@@ -481,18 +479,16 @@ static int __init hypfs_init(void)
rc = -ENODATA;
goto fail_hypfs_sprp_exit;
}
s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
if (!s390_kobj) {
rc = -ENOMEM;
rc = sysfs_create_mount_point(hypervisor_kobj, "s390");
if (rc)
goto fail_hypfs_diag0c_exit;
}
rc = register_filesystem(&hypfs_type);
if (rc)
goto fail_filesystem;
return 0;
fail_filesystem:
kobject_put(s390_kobj);
sysfs_remove_mount_point(hypervisor_kobj, "s390");
fail_hypfs_diag0c_exit:
hypfs_diag0c_exit();
fail_hypfs_sprp_exit:
@@ -510,7 +506,7 @@ fail_dbfs_exit:
static void __exit hypfs_exit(void)
{
unregister_filesystem(&hypfs_type);
kobject_put(s390_kobj);
sysfs_remove_mount_point(hypervisor_kobj, "s390");
hypfs_diag0c_exit();
hypfs_sprp_exit();
hypfs_vm_exit();