Commit 3c5e9a59 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv3: Add emulation of the lookupp() operation 



In order to use the open_by_filehandle() operations on NFSv3, we need
to be able to emulate lookupp() so that nfs_get_parent() can be used
to convert disconnected dentries into connected ones.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 5f447cb8

fs/nfs/nfs3proc.c

+15 −0
Original line number Diff line number Diff line
@@ -209,6 +209,20 @@ nfs3_proc_lookup(struct inode *dir, struct dentry *dentry, 
				  task_flags);

}



static int nfs3_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle,

			     struct nfs_fattr *fattr, struct nfs4_label *label)

{

	const char dotdot[] = "..";

	const size_t len = strlen(dotdot);

	unsigned short task_flags = 0;



	if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL)

		task_flags |= RPC_TASK_TIMEOUT;



	return __nfs3_proc_lookup(inode, dotdot, len, fhandle, fattr,

				  task_flags);

}



static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)

{

	struct nfs3_accessargs	arg = {
@@ -1015,6 +1029,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = { 
	.getattr	= nfs3_proc_getattr,

	.setattr	= nfs3_proc_setattr,

	.lookup		= nfs3_proc_lookup,

	.lookupp	= nfs3_proc_lookupp,

	.access		= nfs3_proc_access,

	.readlink	= nfs3_proc_readlink,

	.create		= nfs3_proc_create,