+static struct nfs_open_context *nameidata_to_nfs_open_context(struct dentry *dentry, struct nameidata *nd)
+{
+ struct path path = {
+ .mnt = nd->path.mnt,
+ .dentry = dentry,
+ };
+ struct nfs_open_context *ctx;
+ struct rpc_cred *cred;
+ fmode_t fmode = nd->intent.open.flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
+
+ cred = rpc_lookup_cred();
+ if (IS_ERR(cred))
+ return ERR_CAST(cred);
+ ctx = alloc_nfs_open_context(&path, cred, fmode);
+ put_rpccred(cred);
+ if (ctx == NULL)
+ return ERR_PTR(-ENOMEM);
+ return ctx;
+}
+
+static int do_open(struct inode *inode, struct file *filp)
+{
+ nfs_fscache_set_inode_cookie(inode, filp);
+ return 0;
+}
+
+static int nfs_intent_set_file(struct nameidata *nd, struct nfs_open_context *ctx)
+{
+ struct file *filp;
+ int ret = 0;
+
+ /* If the open_intent is for execute, we have an extra check to make */
+ if (ctx->mode & FMODE_EXEC) {
+ ret = nfs_may_open(ctx->path.dentry->d_inode,
+ ctx->cred,
+ nd->intent.open.flags);
+ if (ret < 0)
+ goto out;
+ }
+ filp = lookup_instantiate_filp(nd, ctx->path.dentry, do_open);
+ if (IS_ERR(filp))
+ ret = PTR_ERR(filp);
+ else
+ nfs_file_set_open_context(filp, ctx);
+out:
+ put_nfs_open_context(ctx);
+ return ret;
+}
+