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Commit cf809556 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFS: Ensure that nfs_link() instantiates the dentry correctly 



 Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 516a6af6

fs/nfs/dir.c

+4 −7
Original line number Diff line number Diff line
@@ -1432,17 +1432,14 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) 
		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,

		dentry->d_parent->d_name.name, dentry->d_name.name);



	/*

	 * Drop the dentry in advance to force a new lookup.

	 * Since nfs_proc_link doesn't return a file handle,

	 * we can't use the existing dentry.

	 */

	lock_kernel();

	d_drop(dentry);



	nfs_begin_data_update(dir);

	nfs_begin_data_update(inode);

	error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);

	if (error == 0) {

		atomic_inc(&inode->i_count);

		d_instantiate(dentry, inode);

	}

	nfs_end_data_update(inode);

	nfs_end_data_update(dir);

	unlock_kernel();