Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0461ee26 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Al Viro
Browse files

exportfs: use dget_parent 



Use dget_parent instead of opencoding it.  This simplifies the code, but
more importanly prepares for the more complicated locking for a parent
dget in the dcache scale patch series.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 3825bdb7

fs/exportfs/expfs.c

+8 −9
Original line number Diff line number Diff line
@@ -74,21 +74,20 @@ static struct dentry * 
find_disconnected_root(struct dentry *dentry)

{

	dget(dentry);

	spin_lock(&dentry->d_lock);

	while (!IS_ROOT(dentry) &&

	       (dentry->d_parent->d_flags & DCACHE_DISCONNECTED)) {

		struct dentry *parent = dentry->d_parent;

		dget(parent);

		spin_unlock(&dentry->d_lock);

	while (!IS_ROOT(dentry)) {

		struct dentry *parent = dget_parent(dentry);



		if (!(parent->d_flags & DCACHE_DISCONNECTED)) {

			dput(parent);

			break;

		}



		dput(dentry);

		dentry = parent;

		spin_lock(&dentry->d_lock);

	}

	spin_unlock(&dentry->d_lock);

	return dentry;

}





/*

 * Make sure target_dir is fully connected to the dentry tree.

 *