fs/pnode.c

   1 /*
   2  *  linux/fs/pnode.c
   3  *
   4  * (C) Copyright IBM Corporation 2005.
   5  *      Released under GPL v2.
   6  *      Author : Ram Pai (linuxram@us.ibm.com)
   7  *
   8  */
   9 #include <linux/namespace.h>
  10 #include <linux/mount.h>
  11 #include <linux/fs.h>
  12 #include "pnode.h"
  13
  14 /* return the next shared peer mount of @p */
  15 static inline struct vfsmount *next_peer(struct vfsmount *p)
  16 {
  17         return list_entry(p->mnt_share.next, struct vfsmount, mnt_share);
  18 }
  19
  20 void change_mnt_propagation(struct vfsmount *mnt, int type)
  21 {
  22         if (type == MS_SHARED) {
  23                 mnt->mnt_flags |= MNT_SHARED;
  24         } else {
  25                 list_del_init(&mnt->mnt_share);
  26                 mnt->mnt_flags &= ~MNT_PNODE_MASK;
  27         }
  28 }