NFS: Reduce the stack footprint of nfs_link()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 1c5bfb3..982a81b 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -468,30 +468,32 @@
static int
nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
{
- struct nfs_fattr dir_attr, fattr;
struct nfs3_linkargs arg = {
.fromfh = NFS_FH(inode),
.tofh = NFS_FH(dir),
.toname = name->name,
.tolen = name->len
};
- struct nfs3_linkres res = {
- .dir_attr = &dir_attr,
- .fattr = &fattr
- };
+ struct nfs3_linkres res;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
.rpc_argp = &arg,
.rpc_resp = &res,
};
- int status;
+ int status = -ENOMEM;
dprintk("NFS call link %s\n", name->name);
- nfs_fattr_init(&dir_attr);
- nfs_fattr_init(&fattr);
+ res.fattr = nfs_alloc_fattr();
+ res.dir_attr = nfs_alloc_fattr();
+ if (res.fattr == NULL || res.dir_attr == NULL)
+ goto out;
+
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
- nfs_post_op_update_inode(dir, &dir_attr);
- nfs_post_op_update_inode(inode, &fattr);
+ nfs_post_op_update_inode(dir, res.dir_attr);
+ nfs_post_op_update_inode(inode, res.fattr);
+out:
+ nfs_free_fattr(res.dir_attr);
+ nfs_free_fattr(res.fattr);
dprintk("NFS reply link: %d\n", status);
return status;
}