vfs: move mnt_mountpoint to struct mount

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 17 insertions, 18 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 5e700c6df579..ec798e77b726 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -476,7 +476,7 @@ struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry,
                 if (tmp == head)
                         break;
                 p = list_entry(tmp, struct mount, mnt_hash);
-                if (&p->mnt_parent->mnt == mnt && p->mnt.mnt_mountpoint == dentry) {
+                if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry) {
                         found = p;
                         break;
                 }
@@ -543,7 +543,7 @@ static void dentry_reset_mounted(struct dentry *dentry)
                 struct mount *p;
 
                 list_for_each_entry(p, &mount_hashtable[u], mnt_hash) {
-                        if (p->mnt.mnt_mountpoint == dentry)
+                        if (p->mnt_mountpoint == dentry)
                                 return;
                 }
         }
@@ -557,10 +557,10 @@ static void dentry_reset_mounted(struct dentry *dentry)
  */
 static void detach_mnt(struct mount *mnt, struct path *old_path)
 {
-        old_path->dentry = mnt->mnt.mnt_mountpoint;
+        old_path->dentry = mnt->mnt_mountpoint;
         old_path->mnt = &mnt->mnt_parent->mnt;
         mnt->mnt_parent = mnt;
-        mnt->mnt.mnt_mountpoint = mnt->mnt.mnt_root;
+        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
         list_del_init(&mnt->mnt.mnt_child);
         list_del_init(&mnt->mnt_hash);
         dentry_reset_mounted(old_path->dentry);
@@ -573,7 +573,7 @@ void mnt_set_mountpoint(struct vfsmount *mnt, struct dentry *dentry,
                         struct mount *child_mnt)
 {
         child_mnt->mnt_parent = real_mount(mntget(mnt));
-        child_mnt->mnt.mnt_mountpoint = dget(dentry);
+        child_mnt->mnt_mountpoint = dget(dentry);
         spin_lock(&dentry->d_lock);
         dentry->d_flags |= DCACHE_MOUNTED;
         spin_unlock(&dentry->d_lock);
@@ -626,7 +626,7 @@ static void commit_tree(struct mount *mnt)
         list_splice(&head, n->list.prev);
 
         list_add_tail(&mnt->mnt_hash, mount_hashtable +
-                                hash(&parent->mnt, mnt->mnt.mnt_mountpoint));
+                                hash(&parent->mnt, mnt->mnt_mountpoint));
         list_add_tail(&mnt->mnt.mnt_child, &parent->mnt.mnt_mounts);
         touch_mnt_namespace(n);
 }
@@ -681,7 +681,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 
         mnt->mnt.mnt_root = root;
         mnt->mnt.mnt_sb = root->d_sb;
-        mnt->mnt.mnt_mountpoint = mnt->mnt.mnt_root;
+        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
         mnt->mnt_parent = mnt;
         return &mnt->mnt;
 }
@@ -709,7 +709,7 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
                 atomic_inc(&sb->s_active);
                 mnt->mnt.mnt_sb = sb;
                 mnt->mnt.mnt_root = dget(root);
-                mnt->mnt.mnt_mountpoint = mnt->mnt.mnt_root;
+                mnt->mnt_mountpoint = mnt->mnt.mnt_root;
                 mnt->mnt_parent = mnt;
 
                 if (flag & CL_SLAVE) {
@@ -1201,9 +1201,9 @@ void release_mounts(struct list_head *head)
                         struct vfsmount *m;
 
                         br_write_lock(vfsmount_lock);
-                        dentry = mnt->mnt.mnt_mountpoint;
+                        dentry = mnt->mnt_mountpoint;
                         m = &mnt->mnt_parent->mnt;
-                        mnt->mnt.mnt_mountpoint = mnt->mnt.mnt_root;
+                        mnt->mnt_mountpoint = mnt->mnt.mnt_root;
                         mnt->mnt_parent = mnt;
                         m->mnt_ghosts--;
                         br_write_unlock(vfsmount_lock);
@@ -1238,7 +1238,7 @@ void umount_tree(struct mount *mnt, int propagate, struct list_head *kill)
                 list_del_init(&p->mnt.mnt_child);
                 if (mnt_has_parent(p)) {
                         p->mnt_parent->mnt.mnt_ghosts++;
-                        dentry_reset_mounted(p->mnt.mnt_mountpoint);
+                        dentry_reset_mounted(p->mnt_mountpoint);
                 }
                 change_mnt_propagation(p, MS_PRIVATE);
         }
@@ -1412,8 +1412,7 @@ static int mount_is_safe(struct path *path)
 struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
                                         int flag)
 {
-        struct mount *res, *p, *q;
-        struct vfsmount *r;
+        struct mount *res, *p, *q, *r;
         struct path path;
 
         if (!(flag & CL_COPY_ALL) && IS_MNT_UNBINDABLE(&mnt->mnt))
@@ -1422,15 +1421,15 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
         res = q = clone_mnt(mnt, dentry, flag);
         if (!q)
                 goto Enomem;
-        q->mnt.mnt_mountpoint = mnt->mnt.mnt_mountpoint;
+        q->mnt_mountpoint = mnt->mnt_mountpoint;
 
         p = mnt;
-        list_for_each_entry(r, &mnt->mnt.mnt_mounts, mnt_child) {
+        list_for_each_entry(r, &mnt->mnt.mnt_mounts, mnt.mnt_child) {
                 struct mount *s;
                 if (!is_subdir(r->mnt_mountpoint, dentry))
                         continue;
 
-                for (s = real_mount(r); s; s = next_mnt(s, r)) {
+                for (s = r; s; s = next_mnt(s, &r->mnt)) {
                         if (!(flag & CL_COPY_ALL) && IS_MNT_UNBINDABLE(&s->mnt)) {
                                 s = skip_mnt_tree(s);
                                 continue;
@@ -1441,7 +1440,7 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
                         }
                         p = s;
                         path.mnt = &q->mnt;
-                        path.dentry = p->mnt.mnt_mountpoint;
+                        path.dentry = p->mnt_mountpoint;
                         q = clone_mnt(p, p->mnt.mnt_root, flag);
                         if (!q)
                                 goto Enomem;
@@ -2564,7 +2563,7 @@ bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
                          const struct path *root)
 {
         while (&mnt->mnt != root->mnt && mnt_has_parent(mnt)) {
-                dentry = mnt->mnt.mnt_mountpoint;
+                dentry = mnt->mnt_mountpoint;
                 mnt = mnt->mnt_parent;
         }
         return &mnt->mnt == root->mnt && is_subdir(dentry, root->dentry);