* This should eventually move to userland.
*
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/file.h>
#include <linux/fs.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/syscall.h>
+#include <linux/cred.h>
+#include <linux/sched.h>
#include <linux/linkage.h>
#include <linux/namei.h>
#include <linux/mount.h>
static struct file *do_open(char *name, int flags)
{
struct nameidata nd;
+ struct vfsmount *mnt;
int error;
- nd.mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);
+ mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);
+ if (IS_ERR(mnt))
+ return (struct file *)mnt;
- if (IS_ERR(nd.mnt))
- return (struct file *)nd.mnt;
-
- nd.dentry = dget(nd.mnt->mnt_root);
- nd.last_type = LAST_ROOT;
- nd.flags = 0;
- nd.depth = 0;
-
- error = path_walk(name, &nd);
+ error = vfs_path_lookup(mnt->mnt_root, mnt, name, 0, &nd);
+ mntput(mnt); /* drop do_kern_mount reference */
if (error)
return ERR_PTR(error);
if (flags == O_RDWR)
- error = may_open(&nd,MAY_READ|MAY_WRITE,FMODE_READ|FMODE_WRITE);
+ error = may_open(&nd.path, MAY_READ|MAY_WRITE, flags);
else
- error = may_open(&nd, MAY_WRITE, FMODE_WRITE);
+ error = may_open(&nd.path, MAY_WRITE, flags);
if (!error)
- return dentry_open(nd.dentry, nd.mnt, flags);
+ return dentry_open(nd.path.dentry, nd.path.mnt, flags,
+ current_cred());
- path_release(&nd);
+ path_put(&nd.path);
return ERR_PTR(error);
}
},
};
-long
-asmlinkage sys_nfsservctl(int cmd, struct nfsctl_arg __user *arg, void __user *res)
+SYSCALL_DEFINE3(nfsservctl, int, cmd, struct nfsctl_arg __user *, arg,
+ void __user *, res)
{
struct file *file;
void __user *p = &arg->u;
if (version != NFSCTL_VERSION)
return -EINVAL;
- if (cmd < 0 || cmd >= sizeof(map)/sizeof(map[0]) || !map[cmd].name)
+ if (cmd < 0 || cmd >= ARRAY_SIZE(map) || !map[cmd].name)
return -EINVAL;
file = do_open(map[cmd].name, map[cmd].rsize ? O_RDWR : O_WRONLY);