nfs: make nfs_path() work without vfsmount
part 3: now we have everything to get nfs_path() just by dentry -
just follow to (disconnected) root and pick the rest of the thing
there.
Start killing propagation of struct vfsmount * on the paths that
used to bring it to nfs_path().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 1d81032..a6ab483 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2771,16 +2771,15 @@
return root_mnt;
}
-static void nfs_fix_devname(const struct path *path, struct vfsmount *mnt)
+static void nfs_fix_devname(struct dentry *dentry, struct vfsmount *mnt)
{
char *page = (char *) __get_free_page(GFP_KERNEL);
char *devname, *tmp;
+ char *dummy;
if (page == NULL)
return;
- devname = nfs_path(path->mnt->mnt_devname,
- path->mnt->mnt_root, path->dentry,
- page, PAGE_SIZE);
+ devname = nfs_path(&dummy, dentry, page, PAGE_SIZE);
if (IS_ERR(devname))
goto out_freepage;
tmp = kstrdup(devname, GFP_KERNEL);
@@ -2894,7 +2893,7 @@
mnt_target->mnt_root = dget(nd->path.dentry);
/* Correct the device pathname */
- nfs_fix_devname(&nd->path, mnt_target);
+ nfs_fix_devname(nd->path.dentry, mnt_target);
path_put(&nd->path);
kfree(nd);